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https://github.com/tag1consulting/d7_to_d10_migration.git
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4867 lines
198 KiB
PHP
4867 lines
198 KiB
PHP
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<?php
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/**
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* @file
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* Functions for form and batch generation and processing.
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*/
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/**
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* @defgroup forms Form builder functions
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* @{
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* Functions that build an abstract representation of a HTML form.
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*
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* All modules should declare their form builder functions to be in this
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* group and each builder function should reference its validate and submit
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* functions using \@see. Conversely, validate and submit functions should
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* reference the form builder function using \@see. For examples, of this see
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* system_modules_uninstall() or user_pass(), the latter of which has the
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* following in its doxygen documentation:
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* - \@ingroup forms
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* - \@see user_pass_validate()
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* - \@see user_pass_submit()
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*
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* @}
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*/
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/**
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* @defgroup form_api Form generation
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* @{
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* Functions to enable the processing and display of HTML forms.
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*
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* Drupal uses these functions to achieve consistency in its form processing and
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* presentation, while simplifying code and reducing the amount of HTML that
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* must be explicitly generated by modules.
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*
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* The primary function used with forms is drupal_get_form(), which is
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* used for forms presented interactively to a user. Forms can also be built and
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* submitted programmatically without any user input using the
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* drupal_form_submit() function.
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*
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* drupal_get_form() handles retrieving, processing, and displaying a rendered
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* HTML form for modules automatically.
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*
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* Here is an example of how to use drupal_get_form() and a form builder
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* function:
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* @code
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* $form = drupal_get_form('my_module_example_form');
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* ...
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* function my_module_example_form($form, &$form_state) {
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* $form['submit'] = array(
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* '#type' => 'submit',
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* '#value' => t('Submit'),
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* );
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* return $form;
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* }
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* function my_module_example_form_validate($form, &$form_state) {
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* // Validation logic.
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* }
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* function my_module_example_form_submit($form, &$form_state) {
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* // Submission logic.
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* }
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* @endcode
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*
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* Or with any number of additional arguments:
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* @code
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* $extra = "extra";
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* $form = drupal_get_form('my_module_example_form', $extra);
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* ...
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* function my_module_example_form($form, &$form_state, $extra) {
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* $form['submit'] = array(
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* '#type' => 'submit',
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* '#value' => $extra,
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* );
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* return $form;
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* }
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* @endcode
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*
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* The $form argument to form-related functions is a structured array containing
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* the elements and properties of the form. For information on the array
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* components and format, and more detailed explanations of the Form API
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* workflow, see the
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* @link forms_api_reference.html Form API reference @endlink
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* and the
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* @link http://drupal.org/node/37775 Form API documentation section. @endlink
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* In addition, there is a set of Form API tutorials in
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* @link form_example_tutorial.inc the Form Example Tutorial @endlink which
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* provide basics all the way up through multistep forms.
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*
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* In the form builder, validation, submission, and other form functions,
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* $form_state is the primary influence on the processing of the form and is
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* passed by reference to most functions, so they use it to communicate with
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* the form system and each other.
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*
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* See drupal_build_form() for documentation of $form_state keys.
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*/
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/**
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* Returns a renderable form array for a given form ID.
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*
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* This function should be used instead of drupal_build_form() when $form_state
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* is not needed (i.e., when initially rendering the form) and is often
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* used as a menu callback.
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*
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* @param $form_id
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* The unique string identifying the desired form. If a function with that
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* name exists, it is called to build the form array. Modules that need to
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* generate the same form (or very similar forms) using different $form_ids
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* can implement hook_forms(), which maps different $form_id values to the
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* proper form constructor function. Examples may be found in node_forms(),
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* and search_forms(). hook_forms() can also be used to define forms in
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* classes.
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* @param ...
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* Any additional arguments are passed on to the functions called by
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* drupal_get_form(), including the unique form constructor function. For
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* example, the node_edit form requires that a node object is passed in here
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* when it is called. These are available to implementations of
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* hook_form_alter() and hook_form_FORM_ID_alter() as the array
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* $form_state['build_info']['args'].
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*
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* @return
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* The form array.
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*
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* @see drupal_build_form()
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*/
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function drupal_get_form($form_id) {
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$form_state = array();
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$args = func_get_args();
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// Remove $form_id from the arguments.
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array_shift($args);
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$form_state['build_info']['args'] = $args;
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return drupal_build_form($form_id, $form_state);
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}
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/**
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* Builds and process a form based on a form id.
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*
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* The form may also be retrieved from the cache if the form was built in a
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* previous page-load. The form is then passed on for processing, validation
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* and submission if there is proper input.
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*
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* @param $form_id
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* The unique string identifying the desired form. If a function with that
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* name exists, it is called to build the form array. Modules that need to
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* generate the same form (or very similar forms) using different $form_ids
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* can implement hook_forms(), which maps different $form_id values to the
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* proper form constructor function. Examples may be found in node_forms(),
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* and search_forms().
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* @param $form_state
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* An array which stores information about the form. This is passed as a
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* reference so that the caller can use it to examine what in the form changed
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* when the form submission process is complete. Furthermore, it may be used
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* to store information related to the processed data in the form, which will
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* persist across page requests when the 'cache' or 'rebuild' flag is set.
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* The following parameters may be set in $form_state to affect how the form
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* is rendered:
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* - build_info: Internal. An associative array of information stored by Form
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* API that is necessary to build and rebuild the form from cache when the
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* original context may no longer be available:
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* - args: A list of arguments to pass to the form constructor.
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* - files: An optional array defining include files that need to be loaded
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* for building the form. Each array entry may be the path to a file or
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* another array containing values for the parameters 'type', 'module' and
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* 'name' as needed by module_load_include(). The files listed here are
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* automatically loaded by form_get_cache(). By default the current menu
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* router item's 'file' definition is added, if any. Use
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* form_load_include() to add include files from a form constructor.
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* - form_id: Identification of the primary form being constructed and
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* processed.
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* - base_form_id: Identification for a base form, as declared in a
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* hook_forms() implementation.
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* - immutable: If this flag is set to TRUE, a new form build id is
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* generated when the form is loaded from the cache. If it is subsequently
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* saved to the cache again, it will have another cache id and therefore
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* the original form and form-state will remain unaltered. This is
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* important when page caching is enabled in order to prevent form state
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* from leaking between anonymous users.
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* - rebuild_info: Internal. Similar to 'build_info', but pertaining to
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* drupal_rebuild_form().
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* - rebuild: Normally, after the entire form processing is completed and
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* submit handlers have run, a form is considered to be done and
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* drupal_redirect_form() will redirect the user to a new page using a GET
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* request (so a browser refresh does not re-submit the form). However, if
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* 'rebuild' has been set to TRUE, then a new copy of the form is
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* immediately built and sent to the browser, instead of a redirect. This is
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* used for multi-step forms, such as wizards and confirmation forms.
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* Normally, $form_state['rebuild'] is set by a submit handler, since it is
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* usually logic within a submit handler that determines whether a form is
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* done or requires another step. However, a validation handler may already
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* set $form_state['rebuild'] to cause the form processing to bypass submit
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* handlers and rebuild the form instead, even if there are no validation
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* errors.
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* - redirect: Used to redirect the form on submission. It may either be a
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* string containing the destination URL, or an array of arguments
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* compatible with drupal_goto(). See drupal_redirect_form() for complete
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* information.
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* - no_redirect: If set to TRUE the form will NOT perform a drupal_goto(),
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* even if 'redirect' is set.
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* - method: The HTTP form method to use for finding the input for this form.
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* May be 'post' or 'get'. Defaults to 'post'. Note that 'get' method
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* forms do not use form ids so are always considered to be submitted, which
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* can have unexpected effects. The 'get' method should only be used on
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* forms that do not change data, as that is exclusively the domain of
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* 'post.'
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* - cache: If set to TRUE the original, unprocessed form structure will be
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* cached, which allows the entire form to be rebuilt from cache. A typical
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* form workflow involves two page requests; first, a form is built and
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* rendered for the user to fill in. Then, the user fills the form in and
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* submits it, triggering a second page request in which the form must be
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* built and processed. By default, $form and $form_state are built from
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* scratch during each of these page requests. Often, it is necessary or
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* desired to persist the $form and $form_state variables from the initial
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* page request to the one that processes the submission. 'cache' can be set
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* to TRUE to do this. A prominent example is an Ajax-enabled form, in which
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* ajax_process_form() enables form caching for all forms that include an
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* element with the #ajax property. (The Ajax handler has no way to build
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* the form itself, so must rely on the cached version.) Note that the
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* persistence of $form and $form_state happens automatically for
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* (multi-step) forms having the 'rebuild' flag set, regardless of the value
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* for 'cache'.
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* - no_cache: If set to TRUE the form will NOT be cached, even if 'cache' is
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* set.
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* - values: An associative array of values submitted to the form. The
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* validation functions and submit functions use this array for nearly all
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* their decision making. (Note that #tree determines whether the values are
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* a flat array or an array whose structure parallels the $form array. See
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* @link forms_api_reference.html Form API reference @endlink for more
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* information.) These are raw and unvalidated, so should not be used
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* without a thorough understanding of security implications. In almost all
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* cases, code should use the data in the 'values' array exclusively. The
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* most common use of this key is for multi-step forms that need to clear
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* some of the user input when setting 'rebuild'. The values correspond to
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* $_POST or $_GET, depending on the 'method' chosen.
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* - always_process: If TRUE and the method is GET, a form_id is not
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* necessary. This should only be used on RESTful GET forms that do NOT
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* write data, as this could lead to security issues. It is useful so that
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* searches do not need to have a form_id in their query arguments to
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* trigger the search.
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* - must_validate: Ordinarily, a form is only validated once, but there are
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* times when a form is resubmitted internally and should be validated
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* again. Setting this to TRUE will force that to happen. This is most
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* likely to occur during Ajax operations.
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* - programmed: If TRUE, the form was submitted programmatically, usually
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* invoked via drupal_form_submit(). Defaults to FALSE.
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* - programmed_bypass_access_check: If TRUE, programmatic form submissions
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* are processed without taking #access into account. Set this to FALSE
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* when submitting a form programmatically with values that may have been
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* input by the user executing the current request; this will cause #access
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* to be respected as it would on a normal form submission. Defaults to
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* TRUE.
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* - process_input: Boolean flag. TRUE signifies correct form submission.
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* This is always TRUE for programmed forms coming from drupal_form_submit()
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* (see 'programmed' key), or if the form_id coming from the $_POST data is
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* set and matches the current form_id.
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* - submitted: If TRUE, the form has been submitted. Defaults to FALSE.
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* - executed: If TRUE, the form was submitted and has been processed and
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* executed. Defaults to FALSE.
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* - triggering_element: (read-only) The form element that triggered
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* submission. This is the same as the deprecated
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* $form_state['clicked_button']. It is the element that caused submission,
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* which may or may not be a button (in the case of Ajax forms). This key is
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* often used to distinguish between various buttons in a submit handler,
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* and is also used in Ajax handlers.
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* - clicked_button: Deprecated. Use triggering_element instead.
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* - has_file_element: Internal. If TRUE, there is a file element and Form API
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* will set the appropriate 'enctype' HTML attribute on the form.
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* - groups: Internal. An array containing references to fieldsets to render
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* them within vertical tabs.
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* - storage: $form_state['storage'] is not a special key, and no specific
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* support is provided for it in the Form API. By tradition it was
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* the location where application-specific data was stored for communication
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* between the submit, validation, and form builder functions, especially
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* in a multi-step-style form. Form implementations may use any key(s)
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* within $form_state (other than the keys listed here and other reserved
|
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* ones used by Form API internals) for this kind of storage. The
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* recommended way to ensure that the chosen key doesn't conflict with ones
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* used by the Form API or other modules is to use the module name as the
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* key name or a prefix for the key name. For example, the Node module uses
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* $form_state['node'] in node editing forms to store information about the
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* node being edited, and this information stays available across successive
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* clicks of the "Preview" button as well as when the "Save" button is
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* finally clicked.
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* - buttons: A list containing copies of all submit and button elements in
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* the form.
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* - complete form: A reference to the $form variable containing the complete
|
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* form structure. #process, #after_build, #element_validate, and other
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* handlers being invoked on a form element may use this reference to access
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* other information in the form the element is contained in.
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* - temporary: An array holding temporary data accessible during the current
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* page request only. All $form_state properties that are not reserved keys
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* (see form_state_keys_no_cache()) persist throughout a multistep form
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* sequence. Form API provides this key for modules to communicate
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* information across form-related functions during a single page request.
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* It may be used to temporarily save data that does not need to or should
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* not be cached during the whole form workflow; e.g., data that needs to be
|
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* accessed during the current form build process only. There is no use-case
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* for this functionality in Drupal core.
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* - wrapper_callback: Modules that wish to pre-populate certain forms with
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* common elements, such as back/next/save buttons in multi-step form
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* wizards, may define a form builder function name that returns a form
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* structure, which is passed on to the actual form builder function.
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* Such implementations may either define the 'wrapper_callback' via
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* hook_forms() or have to invoke drupal_build_form() (instead of
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* drupal_get_form()) on their own in a custom menu callback to prepare
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* $form_state accordingly.
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* Information on how certain $form_state properties control redirection
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* behavior after form submission may be found in drupal_redirect_form().
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*
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* @return
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* The rendered form. This function may also perform a redirect and hence may
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* not return at all, depending upon the $form_state flags that were set.
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*
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* @see drupal_redirect_form()
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*/
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function drupal_build_form($form_id, &$form_state) {
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// Ensure some defaults; if already set they will not be overridden.
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|
$form_state += form_state_defaults();
|
||
|
|
|
||
|
|
if (!isset($form_state['input'])) {
|
||
|
|
$form_state['input'] = $form_state['method'] == 'get' ? $_GET : $_POST;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($_SESSION['batch_form_state'])) {
|
||
|
|
// We've been redirected here after a batch processing. The form has
|
||
|
|
// already been processed, but needs to be rebuilt. See _batch_finished().
|
||
|
|
$form_state = $_SESSION['batch_form_state'];
|
||
|
|
unset($_SESSION['batch_form_state']);
|
||
|
|
return drupal_rebuild_form($form_id, $form_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the incoming input contains a form_build_id, we'll check the cache for a
|
||
|
|
// copy of the form in question. If it's there, we don't have to rebuild the
|
||
|
|
// form to proceed. In addition, if there is stored form_state data from a
|
||
|
|
// previous step, we'll retrieve it so it can be passed on to the form
|
||
|
|
// processing code.
|
||
|
|
$check_cache = isset($form_state['input']['form_id']) && $form_state['input']['form_id'] == $form_id && !empty($form_state['input']['form_build_id']);
|
||
|
|
if ($check_cache) {
|
||
|
|
$form = form_get_cache($form_state['input']['form_build_id'], $form_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the previous bit of code didn't result in a populated $form object, we
|
||
|
|
// are hitting the form for the first time and we need to build it from
|
||
|
|
// scratch.
|
||
|
|
if (!isset($form)) {
|
||
|
|
// If we attempted to serve the form from cache, uncacheable $form_state
|
||
|
|
// keys need to be removed after retrieving and preparing the form, except
|
||
|
|
// any that were already set prior to retrieving the form.
|
||
|
|
if ($check_cache) {
|
||
|
|
$form_state_before_retrieval = $form_state;
|
||
|
|
}
|
||
|
|
|
||
|
|
$form = drupal_retrieve_form($form_id, $form_state);
|
||
|
|
drupal_prepare_form($form_id, $form, $form_state);
|
||
|
|
|
||
|
|
// form_set_cache() removes uncacheable $form_state keys defined in
|
||
|
|
// form_state_keys_no_cache() in order for multi-step forms to work
|
||
|
|
// properly. This means that form processing logic for single-step forms
|
||
|
|
// using $form_state['cache'] may depend on data stored in those keys
|
||
|
|
// during drupal_retrieve_form()/drupal_prepare_form(), but form
|
||
|
|
// processing should not depend on whether the form is cached or not, so
|
||
|
|
// $form_state is adjusted to match what it would be after a
|
||
|
|
// form_set_cache()/form_get_cache() sequence. These exceptions are
|
||
|
|
// allowed to survive here:
|
||
|
|
// - always_process: Does not make sense in conjunction with form caching
|
||
|
|
// in the first place, since passing form_build_id as a GET parameter is
|
||
|
|
// not desired.
|
||
|
|
// - temporary: Any assigned data is expected to survives within the same
|
||
|
|
// page request.
|
||
|
|
if ($check_cache) {
|
||
|
|
$uncacheable_keys = array_flip(array_diff(form_state_keys_no_cache(), array('always_process', 'temporary')));
|
||
|
|
$form_state = array_diff_key($form_state, $uncacheable_keys);
|
||
|
|
$form_state += $form_state_before_retrieval;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Now that we have a constructed form, process it. This is where:
|
||
|
|
// - Element #process functions get called to further refine $form.
|
||
|
|
// - User input, if any, gets incorporated in the #value property of the
|
||
|
|
// corresponding elements and into $form_state['values'].
|
||
|
|
// - Validation and submission handlers are called.
|
||
|
|
// - If this submission is part of a multistep workflow, the form is rebuilt
|
||
|
|
// to contain the information of the next step.
|
||
|
|
// - If necessary, the form and form state are cached or re-cached, so that
|
||
|
|
// appropriate information persists to the next page request.
|
||
|
|
// All of the handlers in the pipeline receive $form_state by reference and
|
||
|
|
// can use it to know or update information about the state of the form.
|
||
|
|
drupal_process_form($form_id, $form, $form_state);
|
||
|
|
|
||
|
|
// If this was a successful submission of a single-step form or the last step
|
||
|
|
// of a multi-step form, then drupal_process_form() issued a redirect to
|
||
|
|
// another page, or back to this page, but as a new request. Therefore, if
|
||
|
|
// we're here, it means that this is either a form being viewed initially
|
||
|
|
// before any user input, or there was a validation error requiring the form
|
||
|
|
// to be re-displayed, or we're in a multi-step workflow and need to display
|
||
|
|
// the form's next step. In any case, we have what we need in $form, and can
|
||
|
|
// return it for rendering.
|
||
|
|
return $form;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieves default values for the $form_state array.
|
||
|
|
*/
|
||
|
|
function form_state_defaults() {
|
||
|
|
return array(
|
||
|
|
'rebuild' => FALSE,
|
||
|
|
'rebuild_info' => array(),
|
||
|
|
'redirect' => NULL,
|
||
|
|
// @todo 'args' is usually set, so no other default 'build_info' keys are
|
||
|
|
// appended via += form_state_defaults().
|
||
|
|
'build_info' => array(
|
||
|
|
'args' => array(),
|
||
|
|
'files' => array(),
|
||
|
|
),
|
||
|
|
'temporary' => array(),
|
||
|
|
'submitted' => FALSE,
|
||
|
|
'executed' => FALSE,
|
||
|
|
'programmed' => FALSE,
|
||
|
|
'programmed_bypass_access_check' => TRUE,
|
||
|
|
'cache'=> FALSE,
|
||
|
|
'method' => 'post',
|
||
|
|
'groups' => array(),
|
||
|
|
'buttons' => array(),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Constructs a new $form from the information in $form_state.
|
||
|
|
*
|
||
|
|
* This is the key function for making multi-step forms advance from step to
|
||
|
|
* step. It is called by drupal_process_form() when all user input processing,
|
||
|
|
* including calling validation and submission handlers, for the request is
|
||
|
|
* finished. If a validate or submit handler set $form_state['rebuild'] to TRUE,
|
||
|
|
* and if other conditions don't preempt a rebuild from happening, then this
|
||
|
|
* function is called to generate a new $form, the next step in the form
|
||
|
|
* workflow, to be returned for rendering.
|
||
|
|
*
|
||
|
|
* Ajax form submissions are almost always multi-step workflows, so that is one
|
||
|
|
* common use-case during which form rebuilding occurs. See ajax_form_callback()
|
||
|
|
* for more information about creating Ajax-enabled forms.
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* The unique string identifying the desired form. If a function
|
||
|
|
* with that name exists, it is called to build the form array.
|
||
|
|
* Modules that need to generate the same form (or very similar forms)
|
||
|
|
* using different $form_ids can implement hook_forms(), which maps
|
||
|
|
* different $form_id values to the proper form constructor function. Examples
|
||
|
|
* may be found in node_forms() and search_forms().
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form.
|
||
|
|
* @param $old_form
|
||
|
|
* (optional) A previously built $form. Used to retain the #build_id and
|
||
|
|
* #action properties in Ajax callbacks and similar partial form rebuilds. The
|
||
|
|
* only properties copied from $old_form are the ones which both exist in
|
||
|
|
* $old_form and for which $form_state['rebuild_info']['copy'][PROPERTY] is
|
||
|
|
* TRUE. If $old_form is not passed, the entire $form is rebuilt freshly.
|
||
|
|
* 'rebuild_info' needs to be a separate top-level property next to
|
||
|
|
* 'build_info', since the contained data must not be cached.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The newly built form.
|
||
|
|
*
|
||
|
|
* @see drupal_process_form()
|
||
|
|
* @see ajax_form_callback()
|
||
|
|
*/
|
||
|
|
function drupal_rebuild_form($form_id, &$form_state, $old_form = NULL) {
|
||
|
|
$form = drupal_retrieve_form($form_id, $form_state);
|
||
|
|
|
||
|
|
// If only parts of the form will be returned to the browser (e.g., Ajax or
|
||
|
|
// RIA clients), or if the form already had a new build ID regenerated when it
|
||
|
|
// was retrieved from the form cache, reuse the existing #build_id.
|
||
|
|
// Otherwise, a new #build_id is generated, to not clobber the previous
|
||
|
|
// build's data in the form cache; also allowing the user to go back to an
|
||
|
|
// earlier build, make changes, and re-submit.
|
||
|
|
// @see drupal_prepare_form()
|
||
|
|
$enforce_old_build_id = isset($old_form['#build_id']) && !empty($form_state['rebuild_info']['copy']['#build_id']);
|
||
|
|
$old_form_is_mutable_copy = isset($old_form['#build_id_old']);
|
||
|
|
if ($enforce_old_build_id || $old_form_is_mutable_copy) {
|
||
|
|
$form['#build_id'] = $old_form['#build_id'];
|
||
|
|
if ($old_form_is_mutable_copy) {
|
||
|
|
$form['#build_id_old'] = $old_form['#build_id_old'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (isset($old_form['#build_id'])) {
|
||
|
|
$form['#build_id_old'] = $old_form['#build_id'];
|
||
|
|
}
|
||
|
|
$form['#build_id'] = 'form-' . drupal_random_key();
|
||
|
|
}
|
||
|
|
|
||
|
|
// #action defaults to request_uri(), but in case of Ajax and other partial
|
||
|
|
// rebuilds, the form is submitted to an alternate URL, and the original
|
||
|
|
// #action needs to be retained.
|
||
|
|
if (isset($old_form['#action']) && !empty($form_state['rebuild_info']['copy']['#action'])) {
|
||
|
|
$form['#action'] = $old_form['#action'];
|
||
|
|
}
|
||
|
|
|
||
|
|
drupal_prepare_form($form_id, $form, $form_state);
|
||
|
|
|
||
|
|
// Caching is normally done in drupal_process_form(), but what needs to be
|
||
|
|
// cached is the $form structure before it passes through form_builder(),
|
||
|
|
// so we need to do it here.
|
||
|
|
// @todo For Drupal 8, find a way to avoid this code duplication.
|
||
|
|
if (empty($form_state['no_cache'])) {
|
||
|
|
form_set_cache($form['#build_id'], $form, $form_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Clear out all group associations as these might be different when
|
||
|
|
// re-rendering the form.
|
||
|
|
$form_state['groups'] = array();
|
||
|
|
|
||
|
|
// Return a fully built form that is ready for rendering.
|
||
|
|
return form_builder($form_id, $form, $form_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fetches a form from cache.
|
||
|
|
*/
|
||
|
|
function form_get_cache($form_build_id, &$form_state) {
|
||
|
|
if ($cached = cache_get('form_' . $form_build_id, 'cache_form')) {
|
||
|
|
$form = $cached->data;
|
||
|
|
|
||
|
|
global $user;
|
||
|
|
if ((isset($form['#cache_token']) && drupal_valid_token($form['#cache_token'])) || (!isset($form['#cache_token']) && !$user->uid)) {
|
||
|
|
if ($cached = cache_get('form_state_' . $form_build_id, 'cache_form')) {
|
||
|
|
// Re-populate $form_state for subsequent rebuilds.
|
||
|
|
$form_state = $cached->data + $form_state;
|
||
|
|
|
||
|
|
// If the original form is contained in include files, load the files.
|
||
|
|
// @see form_load_include()
|
||
|
|
$form_state['build_info'] += array('files' => array());
|
||
|
|
foreach ($form_state['build_info']['files'] as $file) {
|
||
|
|
if (is_array($file)) {
|
||
|
|
$file += array('type' => 'inc', 'name' => $file['module']);
|
||
|
|
module_load_include($file['type'], $file['module'], $file['name']);
|
||
|
|
}
|
||
|
|
elseif (file_exists($file)) {
|
||
|
|
require_once DRUPAL_ROOT . '/' . $file;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Generate a new #build_id if the cached form was rendered on a cacheable
|
||
|
|
// page.
|
||
|
|
if (!empty($form_state['build_info']['immutable'])) {
|
||
|
|
$form['#build_id_old'] = $form['#build_id'];
|
||
|
|
$form['#build_id'] = 'form-' . drupal_random_key();
|
||
|
|
$form['form_build_id']['#value'] = $form['#build_id'];
|
||
|
|
$form['form_build_id']['#id'] = $form['#build_id'];
|
||
|
|
unset($form_state['build_info']['immutable']);
|
||
|
|
}
|
||
|
|
return $form;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Stores a form in the cache.
|
||
|
|
*/
|
||
|
|
function form_set_cache($form_build_id, $form, $form_state) {
|
||
|
|
// The default cache_form expiration is 6 hours. On busy sites, the cache_form
|
||
|
|
// table can become very large. A shorter cache lifetime can help to keep the
|
||
|
|
// table's size under control.
|
||
|
|
$expire = variable_get('form_cache_expiration', 21600);
|
||
|
|
|
||
|
|
// Ensure that the form build_id embedded in the form structure is the same as
|
||
|
|
// the one passed in as a parameter. This is an additional safety measure to
|
||
|
|
// prevent legacy code operating directly with form_get_cache and
|
||
|
|
// form_set_cache from accidentally overwriting immutable form state.
|
||
|
|
if ($form['#build_id'] != $form_build_id) {
|
||
|
|
watchdog('form', 'Form build-id mismatch detected while attempting to store a form in the cache.', array(), WATCHDOG_ERROR);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Cache form structure.
|
||
|
|
if (isset($form)) {
|
||
|
|
if ($GLOBALS['user']->uid) {
|
||
|
|
$form['#cache_token'] = drupal_get_token();
|
||
|
|
}
|
||
|
|
unset($form['#build_id_old']);
|
||
|
|
cache_set('form_' . $form_build_id, $form, 'cache_form', REQUEST_TIME + $expire);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Cache form state.
|
||
|
|
if (variable_get('cache', 0) && drupal_page_is_cacheable()) {
|
||
|
|
$form_state['build_info']['immutable'] = TRUE;
|
||
|
|
}
|
||
|
|
if ($data = array_diff_key($form_state, array_flip(form_state_keys_no_cache()))) {
|
||
|
|
cache_set('form_state_' . $form_build_id, $data, 'cache_form', REQUEST_TIME + $expire);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns an array of $form_state keys that shouldn't be cached.
|
||
|
|
*/
|
||
|
|
function form_state_keys_no_cache() {
|
||
|
|
return array(
|
||
|
|
// Public properties defined by form constructors and form handlers.
|
||
|
|
'always_process',
|
||
|
|
'must_validate',
|
||
|
|
'rebuild',
|
||
|
|
'rebuild_info',
|
||
|
|
'redirect',
|
||
|
|
'no_redirect',
|
||
|
|
'temporary',
|
||
|
|
// Internal properties defined by form processing.
|
||
|
|
'buttons',
|
||
|
|
'triggering_element',
|
||
|
|
'clicked_button',
|
||
|
|
'complete form',
|
||
|
|
'groups',
|
||
|
|
'input',
|
||
|
|
'method',
|
||
|
|
'submit_handlers',
|
||
|
|
'submitted',
|
||
|
|
'executed',
|
||
|
|
'validate_handlers',
|
||
|
|
'values',
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Ensures an include file is loaded whenever the form is processed.
|
||
|
|
*
|
||
|
|
* Example:
|
||
|
|
* @code
|
||
|
|
* // Load node.admin.inc from Node module.
|
||
|
|
* form_load_include($form_state, 'inc', 'node', 'node.admin');
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* Use this function instead of module_load_include() from inside a form
|
||
|
|
* constructor or any form processing logic as it ensures that the include file
|
||
|
|
* is loaded whenever the form is processed. In contrast to using
|
||
|
|
* module_load_include() directly, form_load_include() makes sure the include
|
||
|
|
* file is correctly loaded also if the form is cached.
|
||
|
|
*
|
||
|
|
* @param $form_state
|
||
|
|
* The current state of the form.
|
||
|
|
* @param $type
|
||
|
|
* The include file's type (file extension).
|
||
|
|
* @param $module
|
||
|
|
* The module to which the include file belongs.
|
||
|
|
* @param $name
|
||
|
|
* (optional) The base file name (without the $type extension). If omitted,
|
||
|
|
* $module is used; i.e., resulting in "$module.$type" by default.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The filepath of the loaded include file, or FALSE if the include file was
|
||
|
|
* not found or has been loaded already.
|
||
|
|
*
|
||
|
|
* @see module_load_include()
|
||
|
|
*/
|
||
|
|
function form_load_include(&$form_state, $type, $module, $name = NULL) {
|
||
|
|
if (!isset($name)) {
|
||
|
|
$name = $module;
|
||
|
|
}
|
||
|
|
if (!isset($form_state['build_info']['files']["$module:$name.$type"])) {
|
||
|
|
// Only add successfully included files to the form state.
|
||
|
|
if ($result = module_load_include($type, $module, $name)) {
|
||
|
|
$form_state['build_info']['files']["$module:$name.$type"] = array(
|
||
|
|
'type' => $type,
|
||
|
|
'module' => $module,
|
||
|
|
'name' => $name,
|
||
|
|
);
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieves, populates, and processes a form.
|
||
|
|
*
|
||
|
|
* This function allows you to supply values for form elements and submit a
|
||
|
|
* form for processing. Compare to drupal_get_form(), which also builds and
|
||
|
|
* processes a form, but does not allow you to supply values.
|
||
|
|
*
|
||
|
|
* There is no return value, but you can check to see if there are errors
|
||
|
|
* by calling form_get_errors().
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* The unique string identifying the desired form. If a function
|
||
|
|
* with that name exists, it is called to build the form array.
|
||
|
|
* Modules that need to generate the same form (or very similar forms)
|
||
|
|
* using different $form_ids can implement hook_forms(), which maps
|
||
|
|
* different $form_id values to the proper form constructor function. Examples
|
||
|
|
* may be found in node_forms() and search_forms().
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. Most important is
|
||
|
|
* the $form_state['values'] collection, a tree of data used to simulate the
|
||
|
|
* incoming $_POST information from a user's form submission. If a key is not
|
||
|
|
* filled in $form_state['values'], then the default value of the respective
|
||
|
|
* element is used. To submit an unchecked checkbox or other control that
|
||
|
|
* browsers submit by not having a $_POST entry, include the key, but set the
|
||
|
|
* value to NULL.
|
||
|
|
* @param ...
|
||
|
|
* Any additional arguments are passed on to the functions called by
|
||
|
|
* drupal_form_submit(), including the unique form constructor function.
|
||
|
|
* For example, the node_edit form requires that a node object be passed
|
||
|
|
* in here when it is called. Arguments that need to be passed by reference
|
||
|
|
* should not be included here, but rather placed directly in the $form_state
|
||
|
|
* build info array so that the reference can be preserved. For example, a
|
||
|
|
* form builder function with the following signature:
|
||
|
|
* @code
|
||
|
|
* function mymodule_form($form, &$form_state, &$object) {
|
||
|
|
* }
|
||
|
|
* @endcode
|
||
|
|
* would be called via drupal_form_submit() as follows:
|
||
|
|
* @code
|
||
|
|
* $form_state['values'] = $my_form_values;
|
||
|
|
* $form_state['build_info']['args'] = array(&$object);
|
||
|
|
* drupal_form_submit('mymodule_form', $form_state);
|
||
|
|
* @endcode
|
||
|
|
* For example:
|
||
|
|
* @code
|
||
|
|
* // register a new user
|
||
|
|
* $form_state = array();
|
||
|
|
* $form_state['values']['name'] = 'robo-user';
|
||
|
|
* $form_state['values']['mail'] = 'robouser@example.com';
|
||
|
|
* $form_state['values']['pass']['pass1'] = 'password';
|
||
|
|
* $form_state['values']['pass']['pass2'] = 'password';
|
||
|
|
* $form_state['values']['op'] = t('Create new account');
|
||
|
|
* drupal_form_submit('user_register_form', $form_state);
|
||
|
|
* @endcode
|
||
|
|
*/
|
||
|
|
function drupal_form_submit($form_id, &$form_state) {
|
||
|
|
if (!isset($form_state['build_info']['args'])) {
|
||
|
|
$args = func_get_args();
|
||
|
|
array_shift($args);
|
||
|
|
array_shift($args);
|
||
|
|
$form_state['build_info']['args'] = $args;
|
||
|
|
}
|
||
|
|
// Merge in default values.
|
||
|
|
$form_state += form_state_defaults();
|
||
|
|
|
||
|
|
// Populate $form_state['input'] with the submitted values before retrieving
|
||
|
|
// the form, to be consistent with what drupal_build_form() does for
|
||
|
|
// non-programmatic submissions (form builder functions may expect it to be
|
||
|
|
// there).
|
||
|
|
$form_state['input'] = $form_state['values'];
|
||
|
|
|
||
|
|
$form_state['programmed'] = TRUE;
|
||
|
|
$form = drupal_retrieve_form($form_id, $form_state);
|
||
|
|
// Programmed forms are always submitted.
|
||
|
|
$form_state['submitted'] = TRUE;
|
||
|
|
|
||
|
|
// Reset form validation.
|
||
|
|
$form_state['must_validate'] = TRUE;
|
||
|
|
form_clear_error();
|
||
|
|
|
||
|
|
drupal_prepare_form($form_id, $form, $form_state);
|
||
|
|
drupal_process_form($form_id, $form, $form_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieves the structured array that defines a given form.
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* The unique string identifying the desired form. If a function
|
||
|
|
* with that name exists, it is called to build the form array.
|
||
|
|
* Modules that need to generate the same form (or very similar forms)
|
||
|
|
* using different $form_ids can implement hook_forms(), which maps
|
||
|
|
* different $form_id values to the proper form constructor function.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form, including the
|
||
|
|
* additional arguments to drupal_get_form() or drupal_form_submit() in the
|
||
|
|
* 'args' component of the array.
|
||
|
|
*/
|
||
|
|
function drupal_retrieve_form($form_id, &$form_state) {
|
||
|
|
$forms = &drupal_static(__FUNCTION__);
|
||
|
|
|
||
|
|
// Record the $form_id.
|
||
|
|
$form_state['build_info']['form_id'] = $form_id;
|
||
|
|
|
||
|
|
// Record the filepath of the include file containing the original form, so
|
||
|
|
// the form builder callbacks can be loaded when the form is being rebuilt
|
||
|
|
// from cache on a different path (such as 'system/ajax'). See
|
||
|
|
// form_get_cache(). Don't do this in maintenance mode as Drupal may not be
|
||
|
|
// fully bootstrapped (i.e. during installation) in which case
|
||
|
|
// menu_get_item() is not available.
|
||
|
|
if (!isset($form_state['build_info']['files']['menu']) && !defined('MAINTENANCE_MODE')) {
|
||
|
|
$item = menu_get_item();
|
||
|
|
if (!empty($item['include_file'])) {
|
||
|
|
// Do not use form_load_include() here, as the file is already loaded.
|
||
|
|
// Anyway, form_get_cache() is able to handle filepaths too.
|
||
|
|
$form_state['build_info']['files']['menu'] = $item['include_file'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// We save two copies of the incoming arguments: one for modules to use
|
||
|
|
// when mapping form ids to constructor functions, and another to pass to
|
||
|
|
// the constructor function itself.
|
||
|
|
$args = $form_state['build_info']['args'];
|
||
|
|
|
||
|
|
// We first check to see if there's a function named after the $form_id.
|
||
|
|
// If there is, we simply pass the arguments on to it to get the form.
|
||
|
|
if (!function_exists($form_id)) {
|
||
|
|
// In cases where many form_ids need to share a central constructor function,
|
||
|
|
// such as the node editing form, modules can implement hook_forms(). It
|
||
|
|
// maps one or more form_ids to the correct constructor functions.
|
||
|
|
//
|
||
|
|
// We cache the results of that hook to save time, but that only works
|
||
|
|
// for modules that know all their form_ids in advance. (A module that
|
||
|
|
// adds a small 'rate this comment' form to each comment in a list
|
||
|
|
// would need a unique form_id for each one, for example.)
|
||
|
|
//
|
||
|
|
// So, we call the hook if $forms isn't yet populated, OR if it doesn't
|
||
|
|
// yet have an entry for the requested form_id.
|
||
|
|
if (!isset($forms) || !isset($forms[$form_id])) {
|
||
|
|
$forms = module_invoke_all('forms', $form_id, $args);
|
||
|
|
}
|
||
|
|
$form_definition = $forms[$form_id];
|
||
|
|
if (isset($form_definition['callback arguments'])) {
|
||
|
|
$args = array_merge($form_definition['callback arguments'], $args);
|
||
|
|
}
|
||
|
|
if (isset($form_definition['callback'])) {
|
||
|
|
$callback = $form_definition['callback'];
|
||
|
|
$form_state['build_info']['base_form_id'] = isset($form_definition['base_form_id']) ? $form_definition['base_form_id'] : $callback;
|
||
|
|
}
|
||
|
|
// In case $form_state['wrapper_callback'] is not defined already, we also
|
||
|
|
// allow hook_forms() to define one.
|
||
|
|
if (!isset($form_state['wrapper_callback']) && isset($form_definition['wrapper_callback'])) {
|
||
|
|
$form_state['wrapper_callback'] = $form_definition['wrapper_callback'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$form = array();
|
||
|
|
// We need to pass $form_state by reference in order for forms to modify it,
|
||
|
|
// since call_user_func_array() requires that referenced variables are passed
|
||
|
|
// explicitly.
|
||
|
|
$args = array_merge(array($form, &$form_state), $args);
|
||
|
|
|
||
|
|
// When the passed $form_state (not using drupal_get_form()) defines a
|
||
|
|
// 'wrapper_callback', then it requests to invoke a separate (wrapping) form
|
||
|
|
// builder function to pre-populate the $form array with form elements, which
|
||
|
|
// the actual form builder function ($callback) expects. This allows for
|
||
|
|
// pre-populating a form with common elements for certain forms, such as
|
||
|
|
// back/next/save buttons in multi-step form wizards. See drupal_build_form().
|
||
|
|
if (isset($form_state['wrapper_callback']) && is_callable($form_state['wrapper_callback'])) {
|
||
|
|
$form = call_user_func_array($form_state['wrapper_callback'], $args);
|
||
|
|
// Put the prepopulated $form into $args.
|
||
|
|
$args[0] = $form;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If $callback was returned by a hook_forms() implementation, call it.
|
||
|
|
// Otherwise, call the function named after the form id.
|
||
|
|
$form = call_user_func_array(isset($callback) ? $callback : $form_id, $args);
|
||
|
|
$form['#form_id'] = $form_id;
|
||
|
|
|
||
|
|
return $form;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a form submission.
|
||
|
|
*
|
||
|
|
* This function is the heart of form API. The form gets built, validated and in
|
||
|
|
* appropriate cases, submitted and rebuilt.
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* The unique string identifying the current form.
|
||
|
|
* @param $form
|
||
|
|
* An associative array containing the structure of the form.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. This
|
||
|
|
* includes the current persistent storage data for the form, and
|
||
|
|
* any data passed along by earlier steps when displaying a
|
||
|
|
* multi-step form. Additional information, like the sanitized $_POST
|
||
|
|
* data, is also accumulated here.
|
||
|
|
*/
|
||
|
|
function drupal_process_form($form_id, &$form, &$form_state) {
|
||
|
|
$form_state['values'] = array();
|
||
|
|
|
||
|
|
// With $_GET, these forms are always submitted if requested.
|
||
|
|
if ($form_state['method'] == 'get' && !empty($form_state['always_process'])) {
|
||
|
|
if (!isset($form_state['input']['form_build_id'])) {
|
||
|
|
$form_state['input']['form_build_id'] = $form['#build_id'];
|
||
|
|
}
|
||
|
|
if (!isset($form_state['input']['form_id'])) {
|
||
|
|
$form_state['input']['form_id'] = $form_id;
|
||
|
|
}
|
||
|
|
if (!isset($form_state['input']['form_token']) && isset($form['#token'])) {
|
||
|
|
$form_state['input']['form_token'] = drupal_get_token($form['#token']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// form_builder() finishes building the form by calling element #process
|
||
|
|
// functions and mapping user input, if any, to #value properties, and also
|
||
|
|
// storing the values in $form_state['values']. We need to retain the
|
||
|
|
// unprocessed $form in case it needs to be cached.
|
||
|
|
$unprocessed_form = $form;
|
||
|
|
$form = form_builder($form_id, $form, $form_state);
|
||
|
|
|
||
|
|
// Only process the input if we have a correct form submission.
|
||
|
|
if ($form_state['process_input']) {
|
||
|
|
drupal_validate_form($form_id, $form, $form_state);
|
||
|
|
|
||
|
|
// drupal_html_id() maintains a cache of element IDs it has seen,
|
||
|
|
// so it can prevent duplicates. We want to be sure we reset that
|
||
|
|
// cache when a form is processed, so scenarios that result in
|
||
|
|
// the form being built behind the scenes and again for the
|
||
|
|
// browser don't increment all the element IDs needlessly.
|
||
|
|
if (!form_get_errors()) {
|
||
|
|
// In case of errors, do not break HTML IDs of other forms.
|
||
|
|
drupal_static_reset('drupal_html_id');
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($form_state['submitted'] && !form_get_errors() && !$form_state['rebuild']) {
|
||
|
|
// Execute form submit handlers.
|
||
|
|
form_execute_handlers('submit', $form, $form_state);
|
||
|
|
|
||
|
|
// We'll clear out the cached copies of the form and its stored data
|
||
|
|
// here, as we've finished with them. The in-memory copies are still
|
||
|
|
// here, though.
|
||
|
|
if (!variable_get('cache', 0) && !empty($form_state['values']['form_build_id'])) {
|
||
|
|
cache_clear_all('form_' . $form_state['values']['form_build_id'], 'cache_form');
|
||
|
|
cache_clear_all('form_state_' . $form_state['values']['form_build_id'], 'cache_form');
|
||
|
|
}
|
||
|
|
|
||
|
|
// If batches were set in the submit handlers, we process them now,
|
||
|
|
// possibly ending execution. We make sure we do not react to the batch
|
||
|
|
// that is already being processed (if a batch operation performs a
|
||
|
|
// drupal_form_submit).
|
||
|
|
if ($batch =& batch_get() && !isset($batch['current_set'])) {
|
||
|
|
// Store $form_state information in the batch definition.
|
||
|
|
// We need the full $form_state when either:
|
||
|
|
// - Some submit handlers were saved to be called during batch
|
||
|
|
// processing. See form_execute_handlers().
|
||
|
|
// - The form is multistep.
|
||
|
|
// In other cases, we only need the information expected by
|
||
|
|
// drupal_redirect_form().
|
||
|
|
if ($batch['has_form_submits'] || !empty($form_state['rebuild'])) {
|
||
|
|
$batch['form_state'] = $form_state;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$batch['form_state'] = array_intersect_key($form_state, array_flip(array('programmed', 'rebuild', 'storage', 'no_redirect', 'redirect')));
|
||
|
|
}
|
||
|
|
|
||
|
|
$batch['progressive'] = !$form_state['programmed'];
|
||
|
|
batch_process();
|
||
|
|
|
||
|
|
// Execution continues only for programmatic forms.
|
||
|
|
// For 'regular' forms, we get redirected to the batch processing
|
||
|
|
// page. Form redirection will be handled in _batch_finished(),
|
||
|
|
// after the batch is processed.
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set a flag to indicate that the form has been processed and executed.
|
||
|
|
$form_state['executed'] = TRUE;
|
||
|
|
|
||
|
|
// Redirect the form based on values in $form_state.
|
||
|
|
drupal_redirect_form($form_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Don't rebuild or cache form submissions invoked via drupal_form_submit().
|
||
|
|
if (!empty($form_state['programmed'])) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If $form_state['rebuild'] has been set and input has been processed
|
||
|
|
// without validation errors, we are in a multi-step workflow that is not
|
||
|
|
// yet complete. A new $form needs to be constructed based on the changes
|
||
|
|
// made to $form_state during this request. Normally, a submit handler sets
|
||
|
|
// $form_state['rebuild'] if a fully executed form requires another step.
|
||
|
|
// However, for forms that have not been fully executed (e.g., Ajax
|
||
|
|
// submissions triggered by non-buttons), there is no submit handler to set
|
||
|
|
// $form_state['rebuild']. It would not make sense to redisplay the
|
||
|
|
// identical form without an error for the user to correct, so we also
|
||
|
|
// rebuild error-free non-executed forms, regardless of
|
||
|
|
// $form_state['rebuild'].
|
||
|
|
// @todo D8: Simplify this logic; considering Ajax and non-HTML front-ends,
|
||
|
|
// along with element-level #submit properties, it makes no sense to have
|
||
|
|
// divergent form execution based on whether the triggering element has
|
||
|
|
// #executes_submit_callback set to TRUE.
|
||
|
|
if (($form_state['rebuild'] || !$form_state['executed']) && !form_get_errors()) {
|
||
|
|
// Form building functions (e.g., _form_builder_handle_input_element())
|
||
|
|
// may use $form_state['rebuild'] to determine if they are running in the
|
||
|
|
// context of a rebuild, so ensure it is set.
|
||
|
|
$form_state['rebuild'] = TRUE;
|
||
|
|
$form = drupal_rebuild_form($form_id, $form_state, $form);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// After processing the form, the form builder or a #process callback may
|
||
|
|
// have set $form_state['cache'] to indicate that the form and form state
|
||
|
|
// shall be cached. But the form may only be cached if the 'no_cache' property
|
||
|
|
// is not set to TRUE. Only cache $form as it was prior to form_builder(),
|
||
|
|
// because form_builder() must run for each request to accommodate new user
|
||
|
|
// input. Rebuilt forms are not cached here, because drupal_rebuild_form()
|
||
|
|
// already takes care of that.
|
||
|
|
if (!$form_state['rebuild'] && $form_state['cache'] && empty($form_state['no_cache'])) {
|
||
|
|
form_set_cache($form['#build_id'], $unprocessed_form, $form_state);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepares a structured form array.
|
||
|
|
*
|
||
|
|
* Adds required elements, executes any hook_form_alter functions, and
|
||
|
|
* optionally inserts a validation token to prevent tampering.
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* A unique string identifying the form for validation, submission,
|
||
|
|
* theming, and hook_form_alter functions.
|
||
|
|
* @param $form
|
||
|
|
* An associative array containing the structure of the form.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. Passed
|
||
|
|
* in here so that hook_form_alter() calls can use it, as well.
|
||
|
|
*/
|
||
|
|
function drupal_prepare_form($form_id, &$form, &$form_state) {
|
||
|
|
global $user;
|
||
|
|
|
||
|
|
$form['#type'] = 'form';
|
||
|
|
$form_state['programmed'] = isset($form_state['programmed']) ? $form_state['programmed'] : FALSE;
|
||
|
|
|
||
|
|
// Fix the form method, if it is 'get' in $form_state, but not in $form.
|
||
|
|
if ($form_state['method'] == 'get' && !isset($form['#method'])) {
|
||
|
|
$form['#method'] = 'get';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Generate a new #build_id for this form, if none has been set already. The
|
||
|
|
// form_build_id is used as key to cache a particular build of the form. For
|
||
|
|
// multi-step forms, this allows the user to go back to an earlier build, make
|
||
|
|
// changes, and re-submit.
|
||
|
|
// @see drupal_build_form()
|
||
|
|
// @see drupal_rebuild_form()
|
||
|
|
if (!isset($form['#build_id'])) {
|
||
|
|
$form['#build_id'] = 'form-' . drupal_random_key();
|
||
|
|
}
|
||
|
|
$form['form_build_id'] = array(
|
||
|
|
'#type' => 'hidden',
|
||
|
|
'#value' => $form['#build_id'],
|
||
|
|
'#id' => $form['#build_id'],
|
||
|
|
'#name' => 'form_build_id',
|
||
|
|
// Form processing and validation requires this value, so ensure the
|
||
|
|
// submitted form value appears literally, regardless of custom #tree
|
||
|
|
// and #parents being set elsewhere.
|
||
|
|
'#parents' => array('form_build_id'),
|
||
|
|
);
|
||
|
|
|
||
|
|
// Add a token, based on either #token or form_id, to any form displayed to
|
||
|
|
// authenticated users. This ensures that any submitted form was actually
|
||
|
|
// requested previously by the user and protects against cross site request
|
||
|
|
// forgeries.
|
||
|
|
// This does not apply to programmatically submitted forms. Furthermore, since
|
||
|
|
// tokens are session-bound and forms displayed to anonymous users are very
|
||
|
|
// likely cached, we cannot assign a token for them.
|
||
|
|
// During installation, there is no $user yet.
|
||
|
|
if (!empty($user->uid) && !$form_state['programmed']) {
|
||
|
|
// Form constructors may explicitly set #token to FALSE when cross site
|
||
|
|
// request forgery is irrelevant to the form, such as search forms.
|
||
|
|
if (isset($form['#token']) && $form['#token'] === FALSE) {
|
||
|
|
unset($form['#token']);
|
||
|
|
}
|
||
|
|
// Otherwise, generate a public token based on the form id.
|
||
|
|
else {
|
||
|
|
$form['#token'] = $form_id;
|
||
|
|
$form['form_token'] = array(
|
||
|
|
'#id' => drupal_html_id('edit-' . $form_id . '-form-token'),
|
||
|
|
'#type' => 'token',
|
||
|
|
'#default_value' => drupal_get_token($form['#token']),
|
||
|
|
// Form processing and validation requires this value, so ensure the
|
||
|
|
// submitted form value appears literally, regardless of custom #tree
|
||
|
|
// and #parents being set elsewhere.
|
||
|
|
'#parents' => array('form_token'),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($form_id)) {
|
||
|
|
$form['form_id'] = array(
|
||
|
|
'#type' => 'hidden',
|
||
|
|
'#value' => $form_id,
|
||
|
|
'#id' => drupal_html_id("edit-$form_id"),
|
||
|
|
// Form processing and validation requires this value, so ensure the
|
||
|
|
// submitted form value appears literally, regardless of custom #tree
|
||
|
|
// and #parents being set elsewhere.
|
||
|
|
'#parents' => array('form_id'),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if (!isset($form['#id'])) {
|
||
|
|
$form['#id'] = drupal_html_id($form_id);
|
||
|
|
}
|
||
|
|
|
||
|
|
$form += element_info('form');
|
||
|
|
$form += array('#tree' => FALSE, '#parents' => array());
|
||
|
|
|
||
|
|
if (!isset($form['#validate'])) {
|
||
|
|
// Ensure that modules can rely on #validate being set.
|
||
|
|
$form['#validate'] = array();
|
||
|
|
// Check for a handler specific to $form_id.
|
||
|
|
if (function_exists($form_id . '_validate')) {
|
||
|
|
$form['#validate'][] = $form_id . '_validate';
|
||
|
|
}
|
||
|
|
// Otherwise check whether this is a shared form and whether there is a
|
||
|
|
// handler for the shared $form_id.
|
||
|
|
elseif (isset($form_state['build_info']['base_form_id']) && function_exists($form_state['build_info']['base_form_id'] . '_validate')) {
|
||
|
|
$form['#validate'][] = $form_state['build_info']['base_form_id'] . '_validate';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isset($form['#submit'])) {
|
||
|
|
// Ensure that modules can rely on #submit being set.
|
||
|
|
$form['#submit'] = array();
|
||
|
|
// Check for a handler specific to $form_id.
|
||
|
|
if (function_exists($form_id . '_submit')) {
|
||
|
|
$form['#submit'][] = $form_id . '_submit';
|
||
|
|
}
|
||
|
|
// Otherwise check whether this is a shared form and whether there is a
|
||
|
|
// handler for the shared $form_id.
|
||
|
|
elseif (isset($form_state['build_info']['base_form_id']) && function_exists($form_state['build_info']['base_form_id'] . '_submit')) {
|
||
|
|
$form['#submit'][] = $form_state['build_info']['base_form_id'] . '_submit';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If no #theme has been set, automatically apply theme suggestions.
|
||
|
|
// theme_form() itself is in #theme_wrappers and not #theme. Therefore, the
|
||
|
|
// #theme function only has to care for rendering the inner form elements,
|
||
|
|
// not the form itself.
|
||
|
|
if (!isset($form['#theme'])) {
|
||
|
|
$form['#theme'] = array($form_id);
|
||
|
|
if (isset($form_state['build_info']['base_form_id'])) {
|
||
|
|
$form['#theme'][] = $form_state['build_info']['base_form_id'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Invoke hook_form_alter(), hook_form_BASE_FORM_ID_alter(), and
|
||
|
|
// hook_form_FORM_ID_alter() implementations.
|
||
|
|
$hooks = array('form');
|
||
|
|
if (isset($form_state['build_info']['base_form_id'])) {
|
||
|
|
$hooks[] = 'form_' . $form_state['build_info']['base_form_id'];
|
||
|
|
}
|
||
|
|
$hooks[] = 'form_' . $form_id;
|
||
|
|
drupal_alter($hooks, $form, $form_state, $form_id);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Helper function to call form_set_error() if there is a token error.
|
||
|
|
*/
|
||
|
|
function _drupal_invalid_token_set_form_error() {
|
||
|
|
// Setting this error will cause the form to fail validation.
|
||
|
|
form_set_error('form_token', t('The form has become outdated. Press the back button, copy any unsaved work in the form, and then reload the page.'));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates user-submitted form data in the $form_state array.
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* A unique string identifying the form for validation, submission,
|
||
|
|
* theming, and hook_form_alter functions.
|
||
|
|
* @param $form
|
||
|
|
* An associative array containing the structure of the form, which is passed
|
||
|
|
* by reference. Form validation handlers are able to alter the form structure
|
||
|
|
* (like #process and #after_build callbacks during form building) in case of
|
||
|
|
* a validation error. If a validation handler alters the form structure, it
|
||
|
|
* is responsible for validating the values of changed form elements in
|
||
|
|
* $form_state['values'] to prevent form submit handlers from receiving
|
||
|
|
* unvalidated values.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. The current
|
||
|
|
* user-submitted data is stored in $form_state['values'], though
|
||
|
|
* form validation functions are passed an explicit copy of the
|
||
|
|
* values for the sake of simplicity. Validation handlers can also use
|
||
|
|
* $form_state to pass information on to submit handlers. For example:
|
||
|
|
* $form_state['data_for_submission'] = $data;
|
||
|
|
* This technique is useful when validation requires file parsing,
|
||
|
|
* web service requests, or other expensive requests that should
|
||
|
|
* not be repeated in the submission step.
|
||
|
|
*/
|
||
|
|
function drupal_validate_form($form_id, &$form, &$form_state) {
|
||
|
|
$validated_forms = &drupal_static(__FUNCTION__, array());
|
||
|
|
|
||
|
|
if (isset($validated_forms[$form_id]) && empty($form_state['must_validate'])) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the session token was set by drupal_prepare_form(), ensure that it
|
||
|
|
// matches the current user's session. This is duplicate to code in
|
||
|
|
// form_builder() but left to protect any custom form handling code.
|
||
|
|
if (!empty($form['#token'])) {
|
||
|
|
if (!drupal_valid_token($form_state['values']['form_token'], $form['#token']) || !empty($form_state['invalid_token'])) {
|
||
|
|
_drupal_invalid_token_set_form_error();
|
||
|
|
// Ignore all submitted values.
|
||
|
|
$form_state['input'] = array();
|
||
|
|
$_POST = array();
|
||
|
|
// Make sure file uploads do not get processed.
|
||
|
|
$_FILES = array();
|
||
|
|
// Stop here and don't run any further validation handlers, because they
|
||
|
|
// could invoke non-safe operations which opens the door for CSRF
|
||
|
|
// vulnerabilities.
|
||
|
|
$validated_forms[$form_id] = TRUE;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
_form_validate($form, $form_state, $form_id);
|
||
|
|
$validated_forms[$form_id] = TRUE;
|
||
|
|
|
||
|
|
// If validation errors are limited then remove any non validated form values,
|
||
|
|
// so that only values that passed validation are left for submit callbacks.
|
||
|
|
if (isset($form_state['triggering_element']['#limit_validation_errors']) && $form_state['triggering_element']['#limit_validation_errors'] !== FALSE) {
|
||
|
|
$values = array();
|
||
|
|
foreach ($form_state['triggering_element']['#limit_validation_errors'] as $section) {
|
||
|
|
// If the section exists within $form_state['values'], even if the value
|
||
|
|
// is NULL, copy it to $values.
|
||
|
|
$section_exists = NULL;
|
||
|
|
$value = drupal_array_get_nested_value($form_state['values'], $section, $section_exists);
|
||
|
|
if ($section_exists) {
|
||
|
|
drupal_array_set_nested_value($values, $section, $value);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// A button's #value does not require validation, so for convenience we
|
||
|
|
// allow the value of the clicked button to be retained in its normal
|
||
|
|
// $form_state['values'] locations, even if these locations are not included
|
||
|
|
// in #limit_validation_errors.
|
||
|
|
if (isset($form_state['triggering_element']['#button_type'])) {
|
||
|
|
$button_value = $form_state['triggering_element']['#value'];
|
||
|
|
|
||
|
|
// Like all input controls, the button value may be in the location
|
||
|
|
// dictated by #parents. If it is, copy it to $values, but do not override
|
||
|
|
// what may already be in $values.
|
||
|
|
$parents = $form_state['triggering_element']['#parents'];
|
||
|
|
if (!drupal_array_nested_key_exists($values, $parents) && drupal_array_get_nested_value($form_state['values'], $parents) === $button_value) {
|
||
|
|
drupal_array_set_nested_value($values, $parents, $button_value);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Additionally, form_builder() places the button value in
|
||
|
|
// $form_state['values'][BUTTON_NAME]. If it's still there, after
|
||
|
|
// validation handlers have run, copy it to $values, but do not override
|
||
|
|
// what may already be in $values.
|
||
|
|
$name = $form_state['triggering_element']['#name'];
|
||
|
|
if (!isset($values[$name]) && isset($form_state['values'][$name]) && $form_state['values'][$name] === $button_value) {
|
||
|
|
$values[$name] = $button_value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$form_state['values'] = $values;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Redirects the user to a URL after a form has been processed.
|
||
|
|
*
|
||
|
|
* After a form is submitted and processed, normally the user should be
|
||
|
|
* redirected to a new destination page. This function figures out what that
|
||
|
|
* destination should be, based on the $form_state array and the 'destination'
|
||
|
|
* query string in the request URL, and redirects the user there.
|
||
|
|
*
|
||
|
|
* Usually (for exceptions, see below) $form_state['redirect'] determines where
|
||
|
|
* to redirect the user. This can be set either to a string (the path to
|
||
|
|
* redirect to), or an array of arguments for drupal_goto(). If
|
||
|
|
* $form_state['redirect'] is missing, the user is usually (again, see below for
|
||
|
|
* exceptions) redirected back to the page they came from, where they should see
|
||
|
|
* a fresh, unpopulated copy of the form.
|
||
|
|
*
|
||
|
|
* Here is an example of how to set up a form to redirect to the path 'node':
|
||
|
|
* @code
|
||
|
|
* $form_state['redirect'] = 'node';
|
||
|
|
* @endcode
|
||
|
|
* And here is an example of how to redirect to 'node/123?foo=bar#baz':
|
||
|
|
* @code
|
||
|
|
* $form_state['redirect'] = array(
|
||
|
|
* 'node/123',
|
||
|
|
* array(
|
||
|
|
* 'query' => array(
|
||
|
|
* 'foo' => 'bar',
|
||
|
|
* ),
|
||
|
|
* 'fragment' => 'baz',
|
||
|
|
* ),
|
||
|
|
* );
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* There are several exceptions to the "usual" behavior described above:
|
||
|
|
* - If $form_state['programmed'] is TRUE, the form submission was usually
|
||
|
|
* invoked via drupal_form_submit(), so any redirection would break the script
|
||
|
|
* that invoked drupal_form_submit() and no redirection is done.
|
||
|
|
* - If $form_state['rebuild'] is TRUE, the form is being rebuilt, and no
|
||
|
|
* redirection is done.
|
||
|
|
* - If $form_state['no_redirect'] is TRUE, redirection is disabled. This is
|
||
|
|
* set, for instance, by ajax_get_form() to prevent redirection in Ajax
|
||
|
|
* callbacks. $form_state['no_redirect'] should never be set or altered by
|
||
|
|
* form builder functions or form validation/submit handlers.
|
||
|
|
* - If $form_state['redirect'] is set to FALSE, redirection is disabled.
|
||
|
|
* - If none of the above conditions has prevented redirection, then the
|
||
|
|
* redirect is accomplished by calling drupal_goto(), passing in the value of
|
||
|
|
* $form_state['redirect'] if it is set, or the current path if it is
|
||
|
|
* not. drupal_goto() preferentially uses the value of $_GET['destination']
|
||
|
|
* (the 'destination' URL query string) if it is present, so this will
|
||
|
|
* override any values set by $form_state['redirect']. Note that during
|
||
|
|
* installation, install_goto() is called in place of drupal_goto().
|
||
|
|
*
|
||
|
|
* @param $form_state
|
||
|
|
* An associative array containing the current state of the form.
|
||
|
|
*
|
||
|
|
* @see drupal_process_form()
|
||
|
|
* @see drupal_build_form()
|
||
|
|
*/
|
||
|
|
function drupal_redirect_form($form_state) {
|
||
|
|
// Skip redirection for form submissions invoked via drupal_form_submit().
|
||
|
|
if (!empty($form_state['programmed'])) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Skip redirection if rebuild is activated.
|
||
|
|
if (!empty($form_state['rebuild'])) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Skip redirection if it was explicitly disallowed.
|
||
|
|
if (!empty($form_state['no_redirect'])) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Only invoke drupal_goto() if redirect value was not set to FALSE.
|
||
|
|
if (!isset($form_state['redirect']) || $form_state['redirect'] !== FALSE) {
|
||
|
|
if (isset($form_state['redirect'])) {
|
||
|
|
if (is_array($form_state['redirect'])) {
|
||
|
|
call_user_func_array('drupal_goto', $form_state['redirect']);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// This function can be called from the installer, which guarantees
|
||
|
|
// that $redirect will always be a string, so catch that case here
|
||
|
|
// and use the appropriate redirect function.
|
||
|
|
$function = drupal_installation_attempted() ? 'install_goto' : 'drupal_goto';
|
||
|
|
$function($form_state['redirect']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
drupal_goto(current_path(), array('query' => drupal_get_query_parameters()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Performs validation on form elements.
|
||
|
|
*
|
||
|
|
* First ensures required fields are completed, #maxlength is not exceeded, and
|
||
|
|
* selected options were in the list of options given to the user. Then calls
|
||
|
|
* user-defined validators.
|
||
|
|
*
|
||
|
|
* @param $elements
|
||
|
|
* An associative array containing the structure of the form.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. The current
|
||
|
|
* user-submitted data is stored in $form_state['values'], though
|
||
|
|
* form validation functions are passed an explicit copy of the
|
||
|
|
* values for the sake of simplicity. Validation handlers can also
|
||
|
|
* $form_state to pass information on to submit handlers. For example:
|
||
|
|
* $form_state['data_for_submission'] = $data;
|
||
|
|
* This technique is useful when validation requires file parsing,
|
||
|
|
* web service requests, or other expensive requests that should
|
||
|
|
* not be repeated in the submission step.
|
||
|
|
* @param $form_id
|
||
|
|
* A unique string identifying the form for validation, submission,
|
||
|
|
* theming, and hook_form_alter functions.
|
||
|
|
*/
|
||
|
|
function _form_validate(&$elements, &$form_state, $form_id = NULL) {
|
||
|
|
// Also used in the installer, pre-database setup.
|
||
|
|
$t = get_t();
|
||
|
|
|
||
|
|
// Recurse through all children.
|
||
|
|
foreach (element_children($elements) as $key) {
|
||
|
|
if (isset($elements[$key]) && $elements[$key]) {
|
||
|
|
_form_validate($elements[$key], $form_state);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Validate the current input.
|
||
|
|
if (!isset($elements['#validated']) || !$elements['#validated']) {
|
||
|
|
// The following errors are always shown.
|
||
|
|
if (isset($elements['#needs_validation'])) {
|
||
|
|
// Verify that the value is not longer than #maxlength.
|
||
|
|
if (isset($elements['#maxlength']) && (isset($elements['#value']) && !is_scalar($elements['#value']))) {
|
||
|
|
form_error($elements, $t('An illegal value has been detected. Please contact the site administrator.'));
|
||
|
|
}
|
||
|
|
elseif (isset($elements['#maxlength']) && drupal_strlen($elements['#value']) > $elements['#maxlength']) {
|
||
|
|
form_error($elements, $t('!name cannot be longer than %max characters but is currently %length characters long.', array('!name' => empty($elements['#title']) ? $elements['#parents'][0] : $elements['#title'], '%max' => $elements['#maxlength'], '%length' => drupal_strlen($elements['#value']))));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($elements['#options']) && isset($elements['#value'])) {
|
||
|
|
if ($elements['#type'] == 'select') {
|
||
|
|
$options = form_options_flatten($elements['#options']);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$options = $elements['#options'];
|
||
|
|
}
|
||
|
|
if (is_array($elements['#value'])) {
|
||
|
|
$value = in_array($elements['#type'], array('checkboxes', 'tableselect')) ? array_keys($elements['#value']) : $elements['#value'];
|
||
|
|
foreach ($value as $v) {
|
||
|
|
if (!isset($options[$v])) {
|
||
|
|
form_error($elements, $t('An illegal choice has been detected. Please contact the site administrator.'));
|
||
|
|
watchdog('form', 'Illegal choice %choice in !name element.', array('%choice' => $v, '!name' => empty($elements['#title']) ? $elements['#parents'][0] : $elements['#title']), WATCHDOG_ERROR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Non-multiple select fields always have a value in HTML. If the user
|
||
|
|
// does not change the form, it will be the value of the first option.
|
||
|
|
// Because of this, form validation for the field will almost always
|
||
|
|
// pass, even if the user did not select anything. To work around this
|
||
|
|
// browser behavior, required select fields without a #default_value get
|
||
|
|
// an additional, first empty option. In case the submitted value is
|
||
|
|
// identical to the empty option's value, we reset the element's value
|
||
|
|
// to NULL to trigger the regular #required handling below.
|
||
|
|
// @see form_process_select()
|
||
|
|
elseif ($elements['#type'] == 'select' && $elements['#required']
|
||
|
|
&& (!array_key_exists('#multiple', $elements) || !$elements['#multiple'])
|
||
|
|
&& !isset($elements['#default_value'])
|
||
|
|
&& $elements['#value'] === $elements['#empty_value']) {
|
||
|
|
$elements['#value'] = NULL;
|
||
|
|
form_set_value($elements, NULL, $form_state);
|
||
|
|
}
|
||
|
|
elseif (!isset($options[$elements['#value']])) {
|
||
|
|
form_error($elements, $t('An illegal choice has been detected. Please contact the site administrator.'));
|
||
|
|
watchdog('form', 'Illegal choice %choice in %name element.', array('%choice' => $elements['#value'], '%name' => empty($elements['#title']) ? $elements['#parents'][0] : $elements['#title']), WATCHDOG_ERROR);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// While this element is being validated, it may be desired that some calls
|
||
|
|
// to form_set_error() be suppressed and not result in a form error, so
|
||
|
|
// that a button that implements low-risk functionality (such as "Previous"
|
||
|
|
// or "Add more") that doesn't require all user input to be valid can still
|
||
|
|
// have its submit handlers triggered. The triggering element's
|
||
|
|
// #limit_validation_errors property contains the information for which
|
||
|
|
// errors are needed, and all other errors are to be suppressed. The
|
||
|
|
// #limit_validation_errors property is ignored if submit handlers will run,
|
||
|
|
// but the element doesn't have a #submit property, because it's too large a
|
||
|
|
// security risk to have any invalid user input when executing form-level
|
||
|
|
// submit handlers.
|
||
|
|
if (isset($form_state['triggering_element']['#limit_validation_errors']) && ($form_state['triggering_element']['#limit_validation_errors'] !== FALSE) && !($form_state['submitted'] && !isset($form_state['triggering_element']['#submit']))) {
|
||
|
|
form_set_error(NULL, '', $form_state['triggering_element']['#limit_validation_errors']);
|
||
|
|
}
|
||
|
|
// If submit handlers won't run (due to the submission having been triggered
|
||
|
|
// by an element whose #executes_submit_callback property isn't TRUE), then
|
||
|
|
// it's safe to suppress all validation errors, and we do so by default,
|
||
|
|
// which is particularly useful during an Ajax submission triggered by a
|
||
|
|
// non-button. An element can override this default by setting the
|
||
|
|
// #limit_validation_errors property. For button element types,
|
||
|
|
// #limit_validation_errors defaults to FALSE (via system_element_info()),
|
||
|
|
// so that full validation is their default behavior.
|
||
|
|
elseif (isset($form_state['triggering_element']) && !isset($form_state['triggering_element']['#limit_validation_errors']) && !$form_state['submitted']) {
|
||
|
|
form_set_error(NULL, '', array());
|
||
|
|
}
|
||
|
|
// As an extra security measure, explicitly turn off error suppression if
|
||
|
|
// one of the above conditions wasn't met. Since this is also done at the
|
||
|
|
// end of this function, doing it here is only to handle the rare edge case
|
||
|
|
// where a validate handler invokes form processing of another form.
|
||
|
|
else {
|
||
|
|
drupal_static_reset('form_set_error:limit_validation_errors');
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure a value is passed when the field is required.
|
||
|
|
if (isset($elements['#needs_validation']) && $elements['#required']) {
|
||
|
|
// A simple call to empty() will not cut it here as some fields, like
|
||
|
|
// checkboxes, can return a valid value of '0'. Instead, check the
|
||
|
|
// length if it's a string, and the item count if it's an array.
|
||
|
|
// An unchecked checkbox has a #value of integer 0, different than string
|
||
|
|
// '0', which could be a valid value.
|
||
|
|
$is_countable = is_array($elements['#value']) || $elements['#value'] instanceof Countable;
|
||
|
|
$is_empty_multiple = $is_countable && count($elements['#value']) == 0;
|
||
|
|
$is_empty_string = (is_string($elements['#value']) && drupal_strlen(trim($elements['#value'])) == 0);
|
||
|
|
$is_empty_value = ($elements['#value'] === 0);
|
||
|
|
$is_empty_null = is_null($elements['#value']);
|
||
|
|
if ($is_empty_multiple || $is_empty_string || $is_empty_value || $is_empty_null) {
|
||
|
|
// Although discouraged, a #title is not mandatory for form elements. In
|
||
|
|
// case there is no #title, we cannot set a form error message.
|
||
|
|
// Instead of setting no #title, form constructors are encouraged to set
|
||
|
|
// #title_display to 'invisible' to improve accessibility.
|
||
|
|
if (isset($elements['#title'])) {
|
||
|
|
form_error($elements, $t('!name field is required.', array('!name' => $elements['#title'])));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
form_error($elements);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Call user-defined form level validators.
|
||
|
|
if (isset($form_id)) {
|
||
|
|
form_execute_handlers('validate', $elements, $form_state);
|
||
|
|
}
|
||
|
|
// Call any element-specific validators. These must act on the element
|
||
|
|
// #value data.
|
||
|
|
elseif (isset($elements['#element_validate'])) {
|
||
|
|
foreach ($elements['#element_validate'] as $function) {
|
||
|
|
$function($elements, $form_state, $form_state['complete form']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$elements['#validated'] = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Done validating this element, so turn off error suppression.
|
||
|
|
// _form_validate() turns it on again when starting on the next element, if
|
||
|
|
// it's still appropriate to do so.
|
||
|
|
drupal_static_reset('form_set_error:limit_validation_errors');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Executes custom validation and submission handlers for a given form.
|
||
|
|
*
|
||
|
|
* Button-specific handlers are checked first. If none exist, the function
|
||
|
|
* falls back to form-level handlers.
|
||
|
|
*
|
||
|
|
* @param $type
|
||
|
|
* The type of handler to execute. 'validate' or 'submit' are the
|
||
|
|
* defaults used by Form API.
|
||
|
|
* @param $form
|
||
|
|
* An associative array containing the structure of the form.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. If the user
|
||
|
|
* submitted the form by clicking a button with custom handler functions
|
||
|
|
* defined, those handlers will be stored here.
|
||
|
|
*/
|
||
|
|
function form_execute_handlers($type, &$form, &$form_state) {
|
||
|
|
$return = FALSE;
|
||
|
|
// If there was a button pressed, use its handlers.
|
||
|
|
if (isset($form_state[$type . '_handlers'])) {
|
||
|
|
$handlers = $form_state[$type . '_handlers'];
|
||
|
|
}
|
||
|
|
// Otherwise, check for a form-level handler.
|
||
|
|
elseif (isset($form['#' . $type])) {
|
||
|
|
$handlers = $form['#' . $type];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$handlers = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($handlers as $function) {
|
||
|
|
// Check if a previous _submit handler has set a batch, but make sure we
|
||
|
|
// do not react to a batch that is already being processed (for instance
|
||
|
|
// if a batch operation performs a drupal_form_submit()).
|
||
|
|
if ($type == 'submit' && ($batch =& batch_get()) && !isset($batch['id'])) {
|
||
|
|
// Some previous submit handler has set a batch. To ensure correct
|
||
|
|
// execution order, store the call in a special 'control' batch set.
|
||
|
|
// See _batch_next_set().
|
||
|
|
$batch['sets'][] = array('form_submit' => $function);
|
||
|
|
$batch['has_form_submits'] = TRUE;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$function($form, $form_state);
|
||
|
|
}
|
||
|
|
$return = TRUE;
|
||
|
|
}
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Files an error against a form element.
|
||
|
|
*
|
||
|
|
* When a validation error is detected, the validator calls form_set_error() to
|
||
|
|
* indicate which element needs to be changed and provide an error message. This
|
||
|
|
* causes the Form API to not execute the form submit handlers, and instead to
|
||
|
|
* re-display the form to the user with the corresponding elements rendered with
|
||
|
|
* an 'error' CSS class (shown as red by default).
|
||
|
|
*
|
||
|
|
* The standard form_set_error() behavior can be changed if a button provides
|
||
|
|
* the #limit_validation_errors property. Multistep forms not wanting to
|
||
|
|
* validate the whole form can set #limit_validation_errors on buttons to
|
||
|
|
* limit validation errors to only certain elements. For example, pressing the
|
||
|
|
* "Previous" button in a multistep form should not fire validation errors just
|
||
|
|
* because the current step has invalid values. If #limit_validation_errors is
|
||
|
|
* set on a clicked button, the button must also define a #submit property
|
||
|
|
* (may be set to an empty array). Any #submit handlers will be executed even if
|
||
|
|
* there is invalid input, so extreme care should be taken with respect to any
|
||
|
|
* actions taken by them. This is typically not a problem with buttons like
|
||
|
|
* "Previous" or "Add more" that do not invoke persistent storage of the
|
||
|
|
* submitted form values. Do not use the #limit_validation_errors property on
|
||
|
|
* buttons that trigger saving of form values to the database.
|
||
|
|
*
|
||
|
|
* The #limit_validation_errors property is a list of "sections" within
|
||
|
|
* $form_state['values'] that must contain valid values. Each "section" is an
|
||
|
|
* array with the ordered set of keys needed to reach that part of
|
||
|
|
* $form_state['values'] (i.e., the #parents property of the element).
|
||
|
|
*
|
||
|
|
* Example 1: Allow the "Previous" button to function, regardless of whether any
|
||
|
|
* user input is valid.
|
||
|
|
*
|
||
|
|
* @code
|
||
|
|
* $form['actions']['previous'] = array(
|
||
|
|
* '#type' => 'submit',
|
||
|
|
* '#value' => t('Previous'),
|
||
|
|
* '#limit_validation_errors' => array(), // No validation.
|
||
|
|
* '#submit' => array('some_submit_function'), // #submit required.
|
||
|
|
* );
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* Example 2: Require some, but not all, user input to be valid to process the
|
||
|
|
* submission of a "Previous" button.
|
||
|
|
*
|
||
|
|
* @code
|
||
|
|
* $form['actions']['previous'] = array(
|
||
|
|
* '#type' => 'submit',
|
||
|
|
* '#value' => t('Previous'),
|
||
|
|
* '#limit_validation_errors' => array(
|
||
|
|
* array('step1'), // Validate $form_state['values']['step1'].
|
||
|
|
* array('foo', 'bar'), // Validate $form_state['values']['foo']['bar'].
|
||
|
|
* ),
|
||
|
|
* '#submit' => array('some_submit_function'), // #submit required.
|
||
|
|
* );
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* This will require $form_state['values']['step1'] and everything within it
|
||
|
|
* (for example, $form_state['values']['step1']['choice']) to be valid, so
|
||
|
|
* calls to form_set_error('step1', $message) or
|
||
|
|
* form_set_error('step1][choice', $message) will prevent the submit handlers
|
||
|
|
* from running, and result in the error message being displayed to the user.
|
||
|
|
* However, calls to form_set_error('step2', $message) and
|
||
|
|
* form_set_error('step2][groupX][choiceY', $message) will be suppressed,
|
||
|
|
* resulting in the message not being displayed to the user, and the submit
|
||
|
|
* handlers will run despite $form_state['values']['step2'] and
|
||
|
|
* $form_state['values']['step2']['groupX']['choiceY'] containing invalid
|
||
|
|
* values. Errors for an invalid $form_state['values']['foo'] will be
|
||
|
|
* suppressed, but errors flagging invalid values for
|
||
|
|
* $form_state['values']['foo']['bar'] and everything within it will be
|
||
|
|
* flagged and submission prevented.
|
||
|
|
*
|
||
|
|
* Partial form validation is implemented by suppressing errors rather than by
|
||
|
|
* skipping the input processing and validation steps entirely, because some
|
||
|
|
* forms have button-level submit handlers that call Drupal API functions that
|
||
|
|
* assume that certain data exists within $form_state['values'], and while not
|
||
|
|
* doing anything with that data that requires it to be valid, PHP errors
|
||
|
|
* would be triggered if the input processing and validation steps were fully
|
||
|
|
* skipped.
|
||
|
|
*
|
||
|
|
* @param $name
|
||
|
|
* The name of the form element. If the #parents property of your form
|
||
|
|
* element is array('foo', 'bar', 'baz') then you may set an error on 'foo'
|
||
|
|
* or 'foo][bar][baz'. Setting an error on 'foo' sets an error for every
|
||
|
|
* element where the #parents array starts with 'foo'.
|
||
|
|
* @param $message
|
||
|
|
* The error message to present to the user.
|
||
|
|
* @param $limit_validation_errors
|
||
|
|
* Internal use only. The #limit_validation_errors property of the clicked
|
||
|
|
* button, if it exists.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* Return value is for internal use only. To get a list of errors, use
|
||
|
|
* form_get_errors() or form_get_error().
|
||
|
|
*
|
||
|
|
* @see http://drupal.org/node/370537
|
||
|
|
* @see http://drupal.org/node/763376
|
||
|
|
*/
|
||
|
|
function form_set_error($name = NULL, $message = '', $limit_validation_errors = NULL) {
|
||
|
|
$form = &drupal_static(__FUNCTION__, array());
|
||
|
|
$sections = &drupal_static(__FUNCTION__ . ':limit_validation_errors');
|
||
|
|
if (isset($limit_validation_errors)) {
|
||
|
|
$sections = $limit_validation_errors;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($name) && !isset($form[$name])) {
|
||
|
|
$record = TRUE;
|
||
|
|
if (isset($sections)) {
|
||
|
|
// #limit_validation_errors is an array of "sections" within which user
|
||
|
|
// input must be valid. If the element is within one of these sections,
|
||
|
|
// the error must be recorded. Otherwise, it can be suppressed.
|
||
|
|
// #limit_validation_errors can be an empty array, in which case all
|
||
|
|
// errors are suppressed. For example, a "Previous" button might want its
|
||
|
|
// submit action to be triggered even if none of the submitted values are
|
||
|
|
// valid.
|
||
|
|
$record = FALSE;
|
||
|
|
foreach ($sections as $section) {
|
||
|
|
// Exploding by '][' reconstructs the element's #parents. If the
|
||
|
|
// reconstructed #parents begin with the same keys as the specified
|
||
|
|
// section, then the element's values are within the part of
|
||
|
|
// $form_state['values'] that the clicked button requires to be valid,
|
||
|
|
// so errors for this element must be recorded. As the exploded array
|
||
|
|
// will all be strings, we need to cast every value of the section
|
||
|
|
// array to string.
|
||
|
|
if (array_slice(explode('][', $name), 0, count($section)) === array_map('strval', $section)) {
|
||
|
|
$record = TRUE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($record) {
|
||
|
|
$form[$name] = $message;
|
||
|
|
if ($message) {
|
||
|
|
drupal_set_message($message, 'error');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $form;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clears all errors against all form elements made by form_set_error().
|
||
|
|
*/
|
||
|
|
function form_clear_error() {
|
||
|
|
drupal_static_reset('form_set_error');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns an associative array of all errors if any.
|
||
|
|
*
|
||
|
|
* @return array|null
|
||
|
|
* The form errors if any, NULL otherwise.
|
||
|
|
*/
|
||
|
|
function form_get_errors() {
|
||
|
|
$form = form_set_error();
|
||
|
|
if (!empty($form)) {
|
||
|
|
return $form;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the error message filed against the given form element.
|
||
|
|
*
|
||
|
|
* Form errors higher up in the form structure override deeper errors as well as
|
||
|
|
* errors on the element itself.
|
||
|
|
*/
|
||
|
|
function form_get_error($element) {
|
||
|
|
$form = form_set_error();
|
||
|
|
$parents = array();
|
||
|
|
foreach ($element['#parents'] as $parent) {
|
||
|
|
$parents[] = $parent;
|
||
|
|
$key = implode('][', $parents);
|
||
|
|
if (isset($form[$key])) {
|
||
|
|
return $form[$key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Flags an element as having an error.
|
||
|
|
*/
|
||
|
|
function form_error(&$element, $message = '') {
|
||
|
|
form_set_error(implode('][', $element['#parents']), $message);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Builds and processes all elements in the structured form array.
|
||
|
|
*
|
||
|
|
* Adds any required properties to each element, maps the incoming input data
|
||
|
|
* to the proper elements, and executes any #process handlers attached to a
|
||
|
|
* specific element.
|
||
|
|
*
|
||
|
|
* This is one of the three primary functions that recursively iterates a form
|
||
|
|
* array. This one does it for completing the form building process. The other
|
||
|
|
* two are _form_validate() (invoked via drupal_validate_form() and used to
|
||
|
|
* invoke validation logic for each element) and drupal_render() (for rendering
|
||
|
|
* each element). Each of these three pipelines provides ample opportunity for
|
||
|
|
* modules to customize what happens. For example, during this function's life
|
||
|
|
* cycle, the following functions get called for each element:
|
||
|
|
* - $element['#value_callback']: A function that implements how user input is
|
||
|
|
* mapped to an element's #value property. This defaults to a function named
|
||
|
|
* 'form_type_TYPE_value' where TYPE is $element['#type'].
|
||
|
|
* - $element['#process']: An array of functions called after user input has
|
||
|
|
* been mapped to the element's #value property. These functions can be used
|
||
|
|
* to dynamically add child elements: for example, for the 'date' element
|
||
|
|
* type, one of the functions in this array is form_process_date(), which adds
|
||
|
|
* the individual 'year', 'month', 'day', etc. child elements. These functions
|
||
|
|
* can also be used to set additional properties or implement special logic
|
||
|
|
* other than adding child elements: for example, for the 'fieldset' element
|
||
|
|
* type, one of the functions in this array is form_process_fieldset(), which
|
||
|
|
* adds the attributes and JavaScript needed to make the fieldset collapsible
|
||
|
|
* if the #collapsible property is set. The #process functions are called in
|
||
|
|
* preorder traversal, meaning they are called for the parent element first,
|
||
|
|
* then for the child elements.
|
||
|
|
* - $element['#after_build']: An array of functions called after form_builder()
|
||
|
|
* is done with its processing of the element. These are called in postorder
|
||
|
|
* traversal, meaning they are called for the child elements first, then for
|
||
|
|
* the parent element.
|
||
|
|
* There are similar properties containing callback functions invoked by
|
||
|
|
* _form_validate() and drupal_render(), appropriate for those operations.
|
||
|
|
*
|
||
|
|
* Developers are strongly encouraged to integrate the functionality needed by
|
||
|
|
* their form or module within one of these three pipelines, using the
|
||
|
|
* appropriate callback property, rather than implementing their own recursive
|
||
|
|
* traversal of a form array. This facilitates proper integration between
|
||
|
|
* multiple modules. For example, module developers are familiar with the
|
||
|
|
* relative order in which hook_form_alter() implementations and #process
|
||
|
|
* functions run. A custom traversal function that affects the building of a
|
||
|
|
* form is likely to not integrate with hook_form_alter() and #process in the
|
||
|
|
* expected way. Also, deep recursion within PHP is both slow and memory
|
||
|
|
* intensive, so it is best to minimize how often it's done.
|
||
|
|
*
|
||
|
|
* As stated above, each element's #process functions are executed after its
|
||
|
|
* #value has been set. This enables those functions to execute conditional
|
||
|
|
* logic based on the current value. However, all of form_builder() runs before
|
||
|
|
* drupal_validate_form() is called, so during #process function execution, the
|
||
|
|
* element's #value has not yet been validated, so any code that requires
|
||
|
|
* validated values must reside within a submit handler.
|
||
|
|
*
|
||
|
|
* As a security measure, user input is used for an element's #value only if the
|
||
|
|
* element exists within $form, is not disabled (as per the #disabled property),
|
||
|
|
* and can be accessed (as per the #access property, except that forms submitted
|
||
|
|
* using drupal_form_submit() bypass #access restrictions). When user input is
|
||
|
|
* ignored due to #disabled and #access restrictions, the element's default
|
||
|
|
* value is used.
|
||
|
|
*
|
||
|
|
* Because of the preorder traversal, where #process functions of an element run
|
||
|
|
* before user input for its child elements is processed, and because of the
|
||
|
|
* Form API security of user input processing with respect to #access and
|
||
|
|
* #disabled described above, this generally means that #process functions
|
||
|
|
* should not use an element's (unvalidated) #value to affect the #disabled or
|
||
|
|
* #access of child elements. Use-cases where a developer may be tempted to
|
||
|
|
* implement such conditional logic usually fall into one of two categories:
|
||
|
|
* - Where user input from the current submission must affect the structure of a
|
||
|
|
* form, including properties like #access and #disabled that affect how the
|
||
|
|
* next submission needs to be processed, a multi-step workflow is needed.
|
||
|
|
* This is most commonly implemented with a submit handler setting persistent
|
||
|
|
* data within $form_state based on *validated* values in
|
||
|
|
* $form_state['values'] and setting $form_state['rebuild']. The form building
|
||
|
|
* functions must then be implemented to use the $form_state data to rebuild
|
||
|
|
* the form with the structure appropriate for the new state.
|
||
|
|
* - Where user input must affect the rendering of the form without affecting
|
||
|
|
* its structure, the necessary conditional rendering logic should reside
|
||
|
|
* within functions that run during the rendering phase (#pre_render, #theme,
|
||
|
|
* #theme_wrappers, and #post_render).
|
||
|
|
*
|
||
|
|
* @param $form_id
|
||
|
|
* A unique string identifying the form for validation, submission,
|
||
|
|
* theming, and hook_form_alter functions.
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the structure of the current element.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form. In this
|
||
|
|
* context, it is used to accumulate information about which button
|
||
|
|
* was clicked when the form was submitted, as well as the sanitized
|
||
|
|
* $_POST data.
|
||
|
|
*/
|
||
|
|
function form_builder($form_id, &$element, &$form_state) {
|
||
|
|
// Initialize as unprocessed.
|
||
|
|
$element['#processed'] = FALSE;
|
||
|
|
|
||
|
|
// Use element defaults.
|
||
|
|
if (isset($element['#type']) && empty($element['#defaults_loaded']) && ($info = element_info($element['#type']))) {
|
||
|
|
// Overlay $info onto $element, retaining preexisting keys in $element.
|
||
|
|
$element += $info;
|
||
|
|
$element['#defaults_loaded'] = TRUE;
|
||
|
|
}
|
||
|
|
// Assign basic defaults common for all form elements.
|
||
|
|
$element += array(
|
||
|
|
'#required' => FALSE,
|
||
|
|
'#attributes' => array(),
|
||
|
|
'#title_display' => 'before',
|
||
|
|
);
|
||
|
|
|
||
|
|
// Special handling if we're on the top level form element.
|
||
|
|
if (isset($element['#type']) && $element['#type'] == 'form') {
|
||
|
|
if (!empty($element['#https']) && variable_get('https', FALSE) &&
|
||
|
|
!url_is_external($element['#action'])) {
|
||
|
|
global $base_root;
|
||
|
|
|
||
|
|
// Not an external URL so ensure that it is secure.
|
||
|
|
$element['#action'] = str_replace('http://', 'https://', $base_root) . $element['#action'];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Store a reference to the complete form in $form_state prior to building
|
||
|
|
// the form. This allows advanced #process and #after_build callbacks to
|
||
|
|
// perform changes elsewhere in the form.
|
||
|
|
$form_state['complete form'] = &$element;
|
||
|
|
|
||
|
|
// Set a flag if we have a correct form submission. This is always TRUE for
|
||
|
|
// programmed forms coming from drupal_form_submit(), or if the form_id coming
|
||
|
|
// from the POST data is set and matches the current form_id.
|
||
|
|
if ($form_state['programmed'] || (!empty($form_state['input']) && (isset($form_state['input']['form_id']) && ($form_state['input']['form_id'] == $form_id)))) {
|
||
|
|
$form_state['process_input'] = TRUE;
|
||
|
|
// If the session token was set by drupal_prepare_form(), ensure that it
|
||
|
|
// matches the current user's session.
|
||
|
|
$form_state['invalid_token'] = FALSE;
|
||
|
|
if (!empty($element['#token'])) {
|
||
|
|
if (empty($form_state['input']['form_token']) || !drupal_valid_token($form_state['input']['form_token'], $element['#token'])) {
|
||
|
|
// Set an early form error to block certain input processing since that
|
||
|
|
// opens the door for CSRF vulnerabilities.
|
||
|
|
_drupal_invalid_token_set_form_error();
|
||
|
|
// This value is checked in _form_builder_handle_input_element().
|
||
|
|
$form_state['invalid_token'] = TRUE;
|
||
|
|
// Ignore all submitted values.
|
||
|
|
$form_state['input'] = array();
|
||
|
|
$_POST = array();
|
||
|
|
// Make sure file uploads do not get processed.
|
||
|
|
$_FILES = array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$form_state['process_input'] = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// All form elements should have an #array_parents property.
|
||
|
|
$element['#array_parents'] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isset($element['#id'])) {
|
||
|
|
$element['#id'] = drupal_html_id('edit-' . implode('-', $element['#parents']));
|
||
|
|
}
|
||
|
|
// Handle input elements.
|
||
|
|
if (!empty($element['#input'])) {
|
||
|
|
_form_builder_handle_input_element($form_id, $element, $form_state);
|
||
|
|
}
|
||
|
|
// Allow for elements to expand to multiple elements, e.g., radios,
|
||
|
|
// checkboxes and files.
|
||
|
|
if (isset($element['#process']) && !$element['#processed']) {
|
||
|
|
foreach ($element['#process'] as $process) {
|
||
|
|
$element = $process($element, $form_state, $form_state['complete form']);
|
||
|
|
}
|
||
|
|
$element['#processed'] = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// We start off assuming all form elements are in the correct order.
|
||
|
|
$element['#sorted'] = TRUE;
|
||
|
|
|
||
|
|
// Recurse through all child elements.
|
||
|
|
$count = 0;
|
||
|
|
foreach (element_children($element) as $key) {
|
||
|
|
// Prior to checking properties of child elements, their default properties
|
||
|
|
// need to be loaded.
|
||
|
|
if (isset($element[$key]['#type']) && empty($element[$key]['#defaults_loaded']) && ($info = element_info($element[$key]['#type']))) {
|
||
|
|
$element[$key] += $info;
|
||
|
|
$element[$key]['#defaults_loaded'] = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Don't squash an existing tree value.
|
||
|
|
if (!isset($element[$key]['#tree'])) {
|
||
|
|
$element[$key]['#tree'] = $element['#tree'];
|
||
|
|
}
|
||
|
|
|
||
|
|
// Deny access to child elements if parent is denied.
|
||
|
|
if (isset($element['#access']) && !$element['#access']) {
|
||
|
|
$element[$key]['#access'] = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make child elements inherit their parent's #disabled and #allow_focus
|
||
|
|
// values unless they specify their own.
|
||
|
|
foreach (array('#disabled', '#allow_focus') as $property) {
|
||
|
|
if (isset($element[$property]) && !isset($element[$key][$property])) {
|
||
|
|
$element[$key][$property] = $element[$property];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Don't squash existing parents value.
|
||
|
|
if (!isset($element[$key]['#parents'])) {
|
||
|
|
// Check to see if a tree of child elements is present. If so,
|
||
|
|
// continue down the tree if required.
|
||
|
|
$element[$key]['#parents'] = $element[$key]['#tree'] && $element['#tree'] ? array_merge($element['#parents'], array($key)) : array($key);
|
||
|
|
}
|
||
|
|
// Ensure #array_parents follows the actual form structure.
|
||
|
|
$array_parents = $element['#array_parents'];
|
||
|
|
$array_parents[] = $key;
|
||
|
|
$element[$key]['#array_parents'] = $array_parents;
|
||
|
|
|
||
|
|
// Assign a decimal placeholder weight to preserve original array order.
|
||
|
|
if (!isset($element[$key]['#weight'])) {
|
||
|
|
$element[$key]['#weight'] = $count/1000;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// If one of the child elements has a weight then we will need to sort
|
||
|
|
// later.
|
||
|
|
unset($element['#sorted']);
|
||
|
|
}
|
||
|
|
$element[$key] = form_builder($form_id, $element[$key], $form_state);
|
||
|
|
$count++;
|
||
|
|
}
|
||
|
|
|
||
|
|
// The #after_build flag allows any piece of a form to be altered
|
||
|
|
// after normal input parsing has been completed.
|
||
|
|
if (isset($element['#after_build']) && !isset($element['#after_build_done'])) {
|
||
|
|
foreach ($element['#after_build'] as $function) {
|
||
|
|
$element = $function($element, $form_state);
|
||
|
|
}
|
||
|
|
$element['#after_build_done'] = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If there is a file element, we need to flip a flag so later the
|
||
|
|
// form encoding can be set.
|
||
|
|
if (isset($element['#type']) && $element['#type'] == 'file') {
|
||
|
|
$form_state['has_file_element'] = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Final tasks for the form element after form_builder() has run for all other
|
||
|
|
// elements.
|
||
|
|
if (isset($element['#type']) && $element['#type'] == 'form') {
|
||
|
|
// If there is a file element, we set the form encoding.
|
||
|
|
if (isset($form_state['has_file_element'])) {
|
||
|
|
$element['#attributes']['enctype'] = 'multipart/form-data';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Allow Ajax submissions to the form action to bypass verification. This is
|
||
|
|
// especially useful for multipart forms, which cannot be verified via a
|
||
|
|
// response header.
|
||
|
|
$element['#attached']['js'][] = array(
|
||
|
|
'type' => 'setting',
|
||
|
|
'data' => array(
|
||
|
|
'urlIsAjaxTrusted' => array(
|
||
|
|
$element['#action'] => TRUE,
|
||
|
|
),
|
||
|
|
),
|
||
|
|
);
|
||
|
|
|
||
|
|
// If a form contains a single textfield, and the ENTER key is pressed
|
||
|
|
// within it, Internet Explorer submits the form with no POST data
|
||
|
|
// identifying any submit button. Other browsers submit POST data as though
|
||
|
|
// the user clicked the first button. Therefore, to be as consistent as we
|
||
|
|
// can be across browsers, if no 'triggering_element' has been identified
|
||
|
|
// yet, default it to the first button.
|
||
|
|
if (!$form_state['programmed'] && !isset($form_state['triggering_element']) && !empty($form_state['buttons'])) {
|
||
|
|
$form_state['triggering_element'] = $form_state['buttons'][0];
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the triggering element specifies "button-level" validation and submit
|
||
|
|
// handlers to run instead of the default form-level ones, then add those to
|
||
|
|
// the form state.
|
||
|
|
foreach (array('validate', 'submit') as $type) {
|
||
|
|
if (isset($form_state['triggering_element']['#' . $type])) {
|
||
|
|
$form_state[$type . '_handlers'] = $form_state['triggering_element']['#' . $type];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the triggering element executes submit handlers, then set the form
|
||
|
|
// state key that's needed for those handlers to run.
|
||
|
|
if (!empty($form_state['triggering_element']['#executes_submit_callback'])) {
|
||
|
|
$form_state['submitted'] = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Special processing if the triggering element is a button.
|
||
|
|
if (isset($form_state['triggering_element']['#button_type'])) {
|
||
|
|
// Because there are several ways in which the triggering element could
|
||
|
|
// have been determined (including from input variables set by JavaScript
|
||
|
|
// or fallback behavior implemented for IE), and because buttons often
|
||
|
|
// have their #name property not derived from their #parents property, we
|
||
|
|
// can't assume that input processing that's happened up until here has
|
||
|
|
// resulted in $form_state['values'][BUTTON_NAME] being set. But it's
|
||
|
|
// common for forms to have several buttons named 'op' and switch on
|
||
|
|
// $form_state['values']['op'] during submit handler execution.
|
||
|
|
$form_state['values'][$form_state['triggering_element']['#name']] = $form_state['triggering_element']['#value'];
|
||
|
|
|
||
|
|
// @todo Legacy support. Remove in Drupal 8.
|
||
|
|
$form_state['clicked_button'] = $form_state['triggering_element'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds the #name and #value properties of an input element before rendering.
|
||
|
|
*/
|
||
|
|
function _form_builder_handle_input_element($form_id, &$element, &$form_state) {
|
||
|
|
static $safe_core_value_callbacks = array(
|
||
|
|
'form_type_token_value',
|
||
|
|
'form_type_textarea_value',
|
||
|
|
'form_type_textfield_value',
|
||
|
|
'form_type_checkbox_value',
|
||
|
|
'form_type_checkboxes_value',
|
||
|
|
'form_type_radios_value',
|
||
|
|
'form_type_password_confirm_value',
|
||
|
|
'form_type_select_value',
|
||
|
|
'form_type_tableselect_value',
|
||
|
|
'list_boolean_allowed_values_callback',
|
||
|
|
);
|
||
|
|
|
||
|
|
if (!isset($element['#name'])) {
|
||
|
|
$name = array_shift($element['#parents']);
|
||
|
|
$element['#name'] = $name;
|
||
|
|
if ($element['#type'] == 'file') {
|
||
|
|
// To make it easier to handle $_FILES in file.inc, we place all
|
||
|
|
// file fields in the 'files' array. Also, we do not support
|
||
|
|
// nested file names.
|
||
|
|
$element['#name'] = 'files[' . $element['#name'] . ']';
|
||
|
|
}
|
||
|
|
elseif (count($element['#parents'])) {
|
||
|
|
$element['#name'] .= '[' . implode('][', $element['#parents']) . ']';
|
||
|
|
}
|
||
|
|
array_unshift($element['#parents'], $name);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Setting #disabled to TRUE results in user input being ignored, regardless
|
||
|
|
// of how the element is themed or whether JavaScript is used to change the
|
||
|
|
// control's attributes. However, it's good UI to let the user know that input
|
||
|
|
// is not wanted for the control. HTML supports two attributes for this:
|
||
|
|
// http://www.w3.org/TR/html401/interact/forms.html#h-17.12. If a form wants
|
||
|
|
// to start a control off with one of these attributes for UI purposes only,
|
||
|
|
// but still allow input to be processed if it's sumitted, it can set the
|
||
|
|
// desired attribute in #attributes directly rather than using #disabled.
|
||
|
|
// However, developers should think carefully about the accessibility
|
||
|
|
// implications of doing so: if the form expects input to be enterable under
|
||
|
|
// some condition triggered by JavaScript, how would someone who has
|
||
|
|
// JavaScript disabled trigger that condition? Instead, developers should
|
||
|
|
// consider whether a multi-step form would be more appropriate (#disabled can
|
||
|
|
// be changed from step to step). If one still decides to use JavaScript to
|
||
|
|
// affect when a control is enabled, then it is best for accessibility for the
|
||
|
|
// control to be enabled in the HTML, and disabled by JavaScript on document
|
||
|
|
// ready.
|
||
|
|
if (!empty($element['#disabled'])) {
|
||
|
|
if (!empty($element['#allow_focus'])) {
|
||
|
|
$element['#attributes']['readonly'] = 'readonly';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$element['#attributes']['disabled'] = 'disabled';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// With JavaScript or other easy hacking, input can be submitted even for
|
||
|
|
// elements with #access=FALSE or #disabled=TRUE. For security, these must
|
||
|
|
// not be processed. Forms that set #disabled=TRUE on an element do not
|
||
|
|
// expect input for the element, and even forms submitted with
|
||
|
|
// drupal_form_submit() must not be able to get around this. Forms that set
|
||
|
|
// #access=FALSE on an element usually allow access for some users, so forms
|
||
|
|
// submitted with drupal_form_submit() may bypass access restriction and be
|
||
|
|
// treated as high-privilege users instead.
|
||
|
|
$process_input = empty($element['#disabled']) && ($element['#type'] !== 'value') && (($form_state['programmed'] && $form_state['programmed_bypass_access_check']) || ($form_state['process_input'] && (!isset($element['#access']) || $element['#access'])));
|
||
|
|
|
||
|
|
// Set the element's #value property.
|
||
|
|
if (!isset($element['#value']) && !array_key_exists('#value', $element)) {
|
||
|
|
$value_callback = !empty($element['#value_callback']) ? $element['#value_callback'] : 'form_type_' . $element['#type'] . '_value';
|
||
|
|
if ($process_input) {
|
||
|
|
// Get the input for the current element. NULL values in the input need to
|
||
|
|
// be explicitly distinguished from missing input. (see below)
|
||
|
|
$input_exists = NULL;
|
||
|
|
$input = drupal_array_get_nested_value($form_state['input'], $element['#parents'], $input_exists);
|
||
|
|
// For browser-submitted forms, the submitted values do not contain values
|
||
|
|
// for certain elements (empty multiple select, unchecked checkbox).
|
||
|
|
// During initial form processing, we add explicit NULL values for such
|
||
|
|
// elements in $form_state['input']. When rebuilding the form, we can
|
||
|
|
// distinguish elements having NULL input from elements that were not part
|
||
|
|
// of the initially submitted form and can therefore use default values
|
||
|
|
// for the latter, if required. Programmatically submitted forms can
|
||
|
|
// submit explicit NULL values when calling drupal_form_submit(), so we do
|
||
|
|
// not modify $form_state['input'] for them.
|
||
|
|
if (!$input_exists && !$form_state['rebuild'] && !$form_state['programmed']) {
|
||
|
|
// Add the necessary parent keys to $form_state['input'] and sets the
|
||
|
|
// element's input value to NULL.
|
||
|
|
drupal_array_set_nested_value($form_state['input'], $element['#parents'], NULL);
|
||
|
|
$input_exists = TRUE;
|
||
|
|
}
|
||
|
|
// If we have input for the current element, assign it to the #value
|
||
|
|
// property, optionally filtered through $value_callback.
|
||
|
|
if ($input_exists) {
|
||
|
|
if (function_exists($value_callback)) {
|
||
|
|
// Skip all value callbacks except safe ones like text if the CSRF
|
||
|
|
// token was invalid.
|
||
|
|
if (empty($form_state['invalid_token']) || in_array($value_callback, $safe_core_value_callbacks)) {
|
||
|
|
$element['#value'] = $value_callback($element, $input, $form_state);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$input = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!isset($element['#value']) && isset($input)) {
|
||
|
|
$element['#value'] = $input;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Mark all posted values for validation.
|
||
|
|
if (isset($element['#value']) || (!empty($element['#required']))) {
|
||
|
|
$element['#needs_validation'] = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Load defaults.
|
||
|
|
if (!isset($element['#value'])) {
|
||
|
|
// Call #type_value without a second argument to request default_value handling.
|
||
|
|
if (function_exists($value_callback)) {
|
||
|
|
$element['#value'] = $value_callback($element, FALSE, $form_state);
|
||
|
|
}
|
||
|
|
// Final catch. If we haven't set a value yet, use the explicit default value.
|
||
|
|
// Avoid image buttons (which come with garbage value), so we only get value
|
||
|
|
// for the button actually clicked.
|
||
|
|
if (!isset($element['#value']) && empty($element['#has_garbage_value'])) {
|
||
|
|
$element['#value'] = isset($element['#default_value']) ? $element['#default_value'] : '';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Determine which element (if any) triggered the submission of the form and
|
||
|
|
// keep track of all the clickable buttons in the form for
|
||
|
|
// form_state_values_clean(). Enforce the same input processing restrictions
|
||
|
|
// as above.
|
||
|
|
if ($process_input) {
|
||
|
|
// Detect if the element triggered the submission via Ajax.
|
||
|
|
if (_form_element_triggered_scripted_submission($element, $form_state)) {
|
||
|
|
$form_state['triggering_element'] = $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the form was submitted by the browser rather than via Ajax, then it
|
||
|
|
// can only have been triggered by a button, and we need to determine which
|
||
|
|
// button within the constraints of how browsers provide this information.
|
||
|
|
if (isset($element['#button_type'])) {
|
||
|
|
// All buttons in the form need to be tracked for
|
||
|
|
// form_state_values_clean() and for the form_builder() code that handles
|
||
|
|
// a form submission containing no button information in $_POST.
|
||
|
|
$form_state['buttons'][] = $element;
|
||
|
|
if (_form_button_was_clicked($element, $form_state)) {
|
||
|
|
$form_state['triggering_element'] = $element;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set the element's value in $form_state['values'], but only, if its key
|
||
|
|
// does not exist yet (a #value_callback may have already populated it).
|
||
|
|
if (!drupal_array_nested_key_exists($form_state['values'], $element['#parents'])) {
|
||
|
|
form_set_value($element, $element['#value'], $form_state);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Detects if an element triggered the form submission via Ajax.
|
||
|
|
*
|
||
|
|
* This detects button or non-button controls that trigger a form submission via
|
||
|
|
* Ajax or some other scriptable environment. These environments can set the
|
||
|
|
* special input key '_triggering_element_name' to identify the triggering
|
||
|
|
* element. If the name alone doesn't identify the element uniquely, the input
|
||
|
|
* key '_triggering_element_value' may also be set to require a match on element
|
||
|
|
* value. An example where this is needed is if there are several buttons all
|
||
|
|
* named 'op', and only differing in their value.
|
||
|
|
*/
|
||
|
|
function _form_element_triggered_scripted_submission($element, &$form_state) {
|
||
|
|
if (!empty($form_state['input']['_triggering_element_name']) && $element['#name'] == $form_state['input']['_triggering_element_name']) {
|
||
|
|
if (empty($form_state['input']['_triggering_element_value']) || $form_state['input']['_triggering_element_value'] == $element['#value']) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines if a given button triggered the form submission.
|
||
|
|
*
|
||
|
|
* This detects button controls that trigger a form submission by being clicked
|
||
|
|
* and having the click processed by the browser rather than being captured by
|
||
|
|
* JavaScript. Essentially, it detects if the button's name and value are part
|
||
|
|
* of the POST data, but with extra code to deal with the convoluted way in
|
||
|
|
* which browsers submit data for image button clicks.
|
||
|
|
*
|
||
|
|
* This does not detect button clicks processed by Ajax (that is done in
|
||
|
|
* _form_element_triggered_scripted_submission()) and it does not detect form
|
||
|
|
* submissions from Internet Explorer in response to an ENTER key pressed in a
|
||
|
|
* textfield (form_builder() has extra code for that).
|
||
|
|
*
|
||
|
|
* Because this function contains only part of the logic needed to determine
|
||
|
|
* $form_state['triggering_element'], it should not be called from anywhere
|
||
|
|
* other than within the Form API. Form validation and submit handlers needing
|
||
|
|
* to know which button was clicked should get that information from
|
||
|
|
* $form_state['triggering_element'].
|
||
|
|
*/
|
||
|
|
function _form_button_was_clicked($element, &$form_state) {
|
||
|
|
// First detect normal 'vanilla' button clicks. Traditionally, all
|
||
|
|
// standard buttons on a form share the same name (usually 'op'),
|
||
|
|
// and the specific return value is used to determine which was
|
||
|
|
// clicked. This ONLY works as long as $form['#name'] puts the
|
||
|
|
// value at the top level of the tree of $_POST data.
|
||
|
|
if (isset($form_state['input'][$element['#name']]) && $form_state['input'][$element['#name']] == $element['#value']) {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
// When image buttons are clicked, browsers do NOT pass the form element
|
||
|
|
// value in $_POST. Instead they pass an integer representing the
|
||
|
|
// coordinates of the click on the button image. This means that image
|
||
|
|
// buttons MUST have unique $form['#name'] values, but the details of
|
||
|
|
// their $_POST data should be ignored.
|
||
|
|
elseif (!empty($element['#has_garbage_value']) && isset($element['#value']) && $element['#value'] !== '') {
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes internal Form API elements and buttons from submitted form values.
|
||
|
|
*
|
||
|
|
* This function can be used when a module wants to store all submitted form
|
||
|
|
* values, for example, by serializing them into a single database column. In
|
||
|
|
* such cases, all internal Form API values and all form button elements should
|
||
|
|
* not be contained, and this function allows to remove them before the module
|
||
|
|
* proceeds to storage. Next to button elements, the following internal values
|
||
|
|
* are removed:
|
||
|
|
* - form_id
|
||
|
|
* - form_token
|
||
|
|
* - form_build_id
|
||
|
|
* - op
|
||
|
|
*
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form, including
|
||
|
|
* submitted form values; altered by reference.
|
||
|
|
*/
|
||
|
|
function form_state_values_clean(&$form_state) {
|
||
|
|
// Remove internal Form API values.
|
||
|
|
unset($form_state['values']['form_id'], $form_state['values']['form_token'], $form_state['values']['form_build_id'], $form_state['values']['op']);
|
||
|
|
|
||
|
|
// Remove button values.
|
||
|
|
// form_builder() collects all button elements in a form. We remove the button
|
||
|
|
// value separately for each button element.
|
||
|
|
foreach ($form_state['buttons'] as $button) {
|
||
|
|
// Remove this button's value from the submitted form values by finding
|
||
|
|
// the value corresponding to this button.
|
||
|
|
// We iterate over the #parents of this button and move a reference to
|
||
|
|
// each parent in $form_state['values']. For example, if #parents is:
|
||
|
|
// array('foo', 'bar', 'baz')
|
||
|
|
// then the corresponding $form_state['values'] part will look like this:
|
||
|
|
// array(
|
||
|
|
// 'foo' => array(
|
||
|
|
// 'bar' => array(
|
||
|
|
// 'baz' => 'button_value',
|
||
|
|
// ),
|
||
|
|
// ),
|
||
|
|
// )
|
||
|
|
// We start by (re)moving 'baz' to $last_parent, so we are able unset it
|
||
|
|
// at the end of the iteration. Initially, $values will contain a
|
||
|
|
// reference to $form_state['values'], but in the iteration we move the
|
||
|
|
// reference to $form_state['values']['foo'], and finally to
|
||
|
|
// $form_state['values']['foo']['bar'], which is the level where we can
|
||
|
|
// unset 'baz' (that is stored in $last_parent).
|
||
|
|
$parents = $button['#parents'];
|
||
|
|
$last_parent = array_pop($parents);
|
||
|
|
$key_exists = NULL;
|
||
|
|
$values = &drupal_array_get_nested_value($form_state['values'], $parents, $key_exists);
|
||
|
|
if ($key_exists && is_array($values)) {
|
||
|
|
unset($values[$last_parent]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for an image button form element.
|
||
|
|
*
|
||
|
|
* @param $form
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
* @param $form_state
|
||
|
|
* A keyed array containing the current state of the form.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_image_button_value($form, $input, $form_state) {
|
||
|
|
if ($input !== FALSE) {
|
||
|
|
if (!empty($input)) {
|
||
|
|
// If we're dealing with Mozilla or Opera, we're lucky. It will
|
||
|
|
// return a proper value, and we can get on with things.
|
||
|
|
return $form['#return_value'];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Unfortunately, in IE we never get back a proper value for THIS
|
||
|
|
// form element. Instead, we get back two split values: one for the
|
||
|
|
// X and one for the Y coordinates on which the user clicked the
|
||
|
|
// button. We'll find this element in the #post data, and search
|
||
|
|
// in the same spot for its name, with '_x'.
|
||
|
|
$input = $form_state['input'];
|
||
|
|
foreach (explode('[', $form['#name']) as $element_name) {
|
||
|
|
// chop off the ] that may exist.
|
||
|
|
if (substr($element_name, -1) == ']') {
|
||
|
|
$element_name = substr($element_name, 0, -1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!isset($input[$element_name])) {
|
||
|
|
if (isset($input[$element_name . '_x'])) {
|
||
|
|
return $form['#return_value'];
|
||
|
|
}
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
$input = $input[$element_name];
|
||
|
|
}
|
||
|
|
return $form['#return_value'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a checkbox form element.
|
||
|
|
*
|
||
|
|
* @param $form
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_checkbox_value($element, $input = FALSE) {
|
||
|
|
if ($input === FALSE) {
|
||
|
|
// Use #default_value as the default value of a checkbox, except change
|
||
|
|
// NULL to 0, because _form_builder_handle_input_element() would otherwise
|
||
|
|
// replace NULL with empty string, but an empty string is a potentially
|
||
|
|
// valid value for a checked checkbox.
|
||
|
|
return isset($element['#default_value']) ? $element['#default_value'] : 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Checked checkboxes are submitted with a value (possibly '0' or ''):
|
||
|
|
// http://www.w3.org/TR/html401/interact/forms.html#successful-controls.
|
||
|
|
// For checked checkboxes, browsers submit the string version of
|
||
|
|
// #return_value, but we return the original #return_value. For unchecked
|
||
|
|
// checkboxes, browsers submit nothing at all, but
|
||
|
|
// _form_builder_handle_input_element() detects this, and calls this
|
||
|
|
// function with $input=NULL. Returning NULL from a value callback means to
|
||
|
|
// use the default value, which is not what is wanted when an unchecked
|
||
|
|
// checkbox is submitted, so we use integer 0 as the value indicating an
|
||
|
|
// unchecked checkbox. Therefore, modules must not use integer 0 as a
|
||
|
|
// #return_value, as doing so results in the checkbox always being treated
|
||
|
|
// as unchecked. The string '0' is allowed for #return_value. The most
|
||
|
|
// common use-case for setting #return_value to either 0 or '0' is for the
|
||
|
|
// first option within a 0-indexed array of checkboxes, and for this,
|
||
|
|
// form_process_checkboxes() uses the string rather than the integer.
|
||
|
|
return isset($input) ? $element['#return_value'] : 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a checkboxes form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_checkboxes_value($element, $input = FALSE) {
|
||
|
|
if ($input === FALSE) {
|
||
|
|
$value = array();
|
||
|
|
$element += array('#default_value' => array());
|
||
|
|
foreach ($element['#default_value'] as $key) {
|
||
|
|
$value[$key] = $key;
|
||
|
|
}
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
elseif (is_array($input)) {
|
||
|
|
// Programmatic form submissions use NULL to indicate that a checkbox
|
||
|
|
// should be unchecked; see drupal_form_submit(). We therefore remove all
|
||
|
|
// NULL elements from the array before constructing the return value, to
|
||
|
|
// simulate the behavior of web browsers (which do not send unchecked
|
||
|
|
// checkboxes to the server at all). This will not affect non-programmatic
|
||
|
|
// form submissions, since all values in $_POST are strings.
|
||
|
|
foreach ($input as $key => $value) {
|
||
|
|
if (!isset($value)) {
|
||
|
|
unset($input[$key]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return drupal_map_assoc($input);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a tableselect form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_tableselect_value($element, $input = FALSE) {
|
||
|
|
// If $element['#multiple'] == FALSE, then radio buttons are displayed and
|
||
|
|
// the default value handling is used.
|
||
|
|
if (isset($element['#multiple']) && $element['#multiple']) {
|
||
|
|
// Checkboxes are being displayed with the default value coming from the
|
||
|
|
// keys of the #default_value property. This differs from the checkboxes
|
||
|
|
// element which uses the array values.
|
||
|
|
if ($input === FALSE) {
|
||
|
|
$value = array();
|
||
|
|
$element += array('#default_value' => array());
|
||
|
|
foreach ($element['#default_value'] as $key => $flag) {
|
||
|
|
if ($flag) {
|
||
|
|
$value[$key] = $key;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return is_array($input) ? drupal_map_assoc($input) : array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Form value callback: Determines the value for a #type radios form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* (optional) The incoming input to populate the form element. If FALSE, the
|
||
|
|
* element's default value is returned. Defaults to FALSE.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_radios_value(&$element, $input = FALSE) {
|
||
|
|
if ($input !== FALSE) {
|
||
|
|
// When there's user input (including NULL), return it as the value.
|
||
|
|
// However, if NULL is submitted, _form_builder_handle_input_element() will
|
||
|
|
// apply the default value, and we want that validated against #options
|
||
|
|
// unless it's empty. (An empty #default_value, such as NULL or FALSE, can
|
||
|
|
// be used to indicate that no radio button is selected by default.)
|
||
|
|
if (!isset($input) && !empty($element['#default_value'])) {
|
||
|
|
$element['#needs_validation'] = TRUE;
|
||
|
|
}
|
||
|
|
return $input;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// For default value handling, simply return #default_value. Additionally,
|
||
|
|
// for a NULL default value, set #has_garbage_value to prevent
|
||
|
|
// _form_builder_handle_input_element() converting the NULL to an empty
|
||
|
|
// string, so that code can distinguish between nothing selected and the
|
||
|
|
// selection of a radio button whose value is an empty string.
|
||
|
|
$value = isset($element['#default_value']) ? $element['#default_value'] : NULL;
|
||
|
|
if (!isset($value)) {
|
||
|
|
$element['#has_garbage_value'] = TRUE;
|
||
|
|
}
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a password_confirm form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_password_confirm_value($element, $input = FALSE) {
|
||
|
|
if ($input === FALSE) {
|
||
|
|
$element += array('#default_value' => array());
|
||
|
|
return $element['#default_value'] + array('pass1' => '', 'pass2' => '');
|
||
|
|
}
|
||
|
|
$value = array('pass1' => '', 'pass2' => '');
|
||
|
|
// Throw out all invalid array keys; we only allow pass1 and pass2.
|
||
|
|
foreach ($value as $allowed_key => $default) {
|
||
|
|
// These should be strings, but allow other scalars since they might be
|
||
|
|
// valid input in programmatic form submissions. Any nested array values
|
||
|
|
// are ignored.
|
||
|
|
if (isset($input[$allowed_key]) && is_scalar($input[$allowed_key])) {
|
||
|
|
$value[$allowed_key] = (string) $input[$allowed_key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a select form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_select_value($element, $input = FALSE) {
|
||
|
|
if ($input !== FALSE) {
|
||
|
|
if (isset($element['#multiple']) && $element['#multiple']) {
|
||
|
|
// If an enabled multi-select submits NULL, it means all items are
|
||
|
|
// unselected. A disabled multi-select always submits NULL, and the
|
||
|
|
// default value should be used.
|
||
|
|
if (empty($element['#disabled'])) {
|
||
|
|
return (is_array($input)) ? drupal_map_assoc($input) : array();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return (isset($element['#default_value']) && is_array($element['#default_value'])) ? $element['#default_value'] : array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Non-multiple select elements may have an empty option preprended to them
|
||
|
|
// (see form_process_select()). When this occurs, usually #empty_value is
|
||
|
|
// an empty string, but some forms set #empty_value to integer 0 or some
|
||
|
|
// other non-string constant. PHP receives all submitted form input as
|
||
|
|
// strings, but if the empty option is selected, set the value to match the
|
||
|
|
// empty value exactly.
|
||
|
|
elseif (isset($element['#empty_value']) && $input === (string) $element['#empty_value']) {
|
||
|
|
return $element['#empty_value'];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return $input;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a textarea form element.
|
||
|
|
*
|
||
|
|
* @param array $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param mixed $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE, the
|
||
|
|
* element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_textarea_value($element, $input = FALSE) {
|
||
|
|
if ($input !== FALSE && $input !== NULL) {
|
||
|
|
// This should be a string, but allow other scalars since they might be
|
||
|
|
// valid input in programmatic form submissions.
|
||
|
|
return is_scalar($input) ? (string) $input : '';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for a textfield form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_textfield_value($element, $input = FALSE) {
|
||
|
|
if ($input !== FALSE && $input !== NULL) {
|
||
|
|
// This should be a string, but allow other scalars since they might be
|
||
|
|
// valid input in programmatic form submissions.
|
||
|
|
if (!is_scalar($input)) {
|
||
|
|
$input = '';
|
||
|
|
}
|
||
|
|
return str_replace(array("\r", "\n"), '', (string) $input);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines the value for form's token value.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element whose value is being populated.
|
||
|
|
* @param $input
|
||
|
|
* The incoming input to populate the form element. If this is FALSE,
|
||
|
|
* the element's default value should be returned.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The data that will appear in $form_state['values'] for this element, or
|
||
|
|
* nothing to use the default.
|
||
|
|
*/
|
||
|
|
function form_type_token_value($element, $input = FALSE) {
|
||
|
|
if ($input !== FALSE) {
|
||
|
|
return (string) $input;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Changes submitted form values during form validation.
|
||
|
|
*
|
||
|
|
* Use this function to change the submitted value of a form element in a form
|
||
|
|
* validation function, so that the changed value persists in $form_state
|
||
|
|
* through the remaining validation and submission handlers. It does not change
|
||
|
|
* the value in $element['#value'], only in $form_state['values'], which is
|
||
|
|
* where submitted values are always stored.
|
||
|
|
*
|
||
|
|
* Note that form validation functions are specified in the '#validate'
|
||
|
|
* component of the form array (the value of $form['#validate'] is an array of
|
||
|
|
* validation function names). If the form does not originate in your module,
|
||
|
|
* you can implement hook_form_FORM_ID_alter() to add a validation function
|
||
|
|
* to $form['#validate'].
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element that should have its value updated; in most cases you can
|
||
|
|
* just pass in the element from the $form array, although the only component
|
||
|
|
* that is actually used is '#parents'. If constructing yourself, set
|
||
|
|
* $element['#parents'] to be an array giving the path through the form
|
||
|
|
* array's keys to the element whose value you want to update. For instance,
|
||
|
|
* if you want to update the value of $form['elem1']['elem2'], which should be
|
||
|
|
* stored in $form_state['values']['elem1']['elem2'], you would set
|
||
|
|
* $element['#parents'] = array('elem1','elem2').
|
||
|
|
* @param $value
|
||
|
|
* The new value for the form element.
|
||
|
|
* @param $form_state
|
||
|
|
* Form state array where the value change should be recorded.
|
||
|
|
*/
|
||
|
|
function form_set_value($element, $value, &$form_state) {
|
||
|
|
drupal_array_set_nested_value($form_state['values'], $element['#parents'], $value, TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Allows PHP array processing of multiple select options with the same value.
|
||
|
|
*
|
||
|
|
* Used for form select elements which need to validate HTML option groups
|
||
|
|
* and multiple options which may return the same value. Associative PHP arrays
|
||
|
|
* cannot handle these structures, since they share a common key.
|
||
|
|
*
|
||
|
|
* @param $array
|
||
|
|
* The form options array to process.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* An array with all hierarchical elements flattened to a single array.
|
||
|
|
*/
|
||
|
|
function form_options_flatten($array) {
|
||
|
|
// Always reset static var when first entering the recursion.
|
||
|
|
drupal_static_reset('_form_options_flatten');
|
||
|
|
return _form_options_flatten($array);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Iterates over an array and returns a flat array with duplicate keys removed.
|
||
|
|
*
|
||
|
|
* This function also handles cases where objects are passed as array values.
|
||
|
|
*/
|
||
|
|
function _form_options_flatten($array) {
|
||
|
|
$return = &drupal_static(__FUNCTION__);
|
||
|
|
|
||
|
|
foreach ($array as $key => $value) {
|
||
|
|
if (is_object($value)) {
|
||
|
|
_form_options_flatten($value->option);
|
||
|
|
}
|
||
|
|
elseif (is_array($value)) {
|
||
|
|
_form_options_flatten($value);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$return[$key] = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a select list form element.
|
||
|
|
*
|
||
|
|
* This process callback is mandatory for select fields, since all user agents
|
||
|
|
* automatically preselect the first available option of single (non-multiple)
|
||
|
|
* select lists.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element to process. Properties used:
|
||
|
|
* - #multiple: (optional) Indicates whether one or more options can be
|
||
|
|
* selected. Defaults to FALSE.
|
||
|
|
* - #default_value: Must be NULL or not set in case there is no value for the
|
||
|
|
* element yet, in which case a first default option is inserted by default.
|
||
|
|
* Whether this first option is a valid option depends on whether the field
|
||
|
|
* is #required or not.
|
||
|
|
* - #required: (optional) Whether the user needs to select an option (TRUE)
|
||
|
|
* or not (FALSE). Defaults to FALSE.
|
||
|
|
* - #empty_option: (optional) The label to show for the first default option.
|
||
|
|
* By default, the label is automatically set to "- Select -" for a required
|
||
|
|
* field and "- None -" for an optional field.
|
||
|
|
* - #empty_value: (optional) The value for the first default option, which is
|
||
|
|
* used to determine whether the user submitted a value or not.
|
||
|
|
* - If #required is TRUE, this defaults to '' (an empty string).
|
||
|
|
* - If #required is not TRUE and this value isn't set, then no extra option
|
||
|
|
* is added to the select control, leaving the control in a slightly
|
||
|
|
* illogical state, because there's no way for the user to select nothing,
|
||
|
|
* since all user agents automatically preselect the first available
|
||
|
|
* option. But people are used to this being the behavior of select
|
||
|
|
* controls.
|
||
|
|
* @todo Address the above issue in Drupal 8.
|
||
|
|
* - If #required is not TRUE and this value is set (most commonly to an
|
||
|
|
* empty string), then an extra option (see #empty_option above)
|
||
|
|
* representing a "non-selection" is added with this as its value.
|
||
|
|
*
|
||
|
|
* @see _form_validate()
|
||
|
|
*/
|
||
|
|
function form_process_select($element) {
|
||
|
|
// #multiple select fields need a special #name.
|
||
|
|
if ($element['#multiple']) {
|
||
|
|
$element['#attributes']['multiple'] = 'multiple';
|
||
|
|
$element['#attributes']['name'] = $element['#name'] . '[]';
|
||
|
|
}
|
||
|
|
// A non-#multiple select needs special handling to prevent user agents from
|
||
|
|
// preselecting the first option without intention. #multiple select lists do
|
||
|
|
// not get an empty option, as it would not make sense, user interface-wise.
|
||
|
|
else {
|
||
|
|
$required = $element['#required'];
|
||
|
|
// If the element is required and there is no #default_value, then add an
|
||
|
|
// empty option that will fail validation, so that the user is required to
|
||
|
|
// make a choice. Also, if there's a value for #empty_value or
|
||
|
|
// #empty_option, then add an option that represents emptiness.
|
||
|
|
if (($required && !isset($element['#default_value'])) || isset($element['#empty_value']) || isset($element['#empty_option'])) {
|
||
|
|
$element += array(
|
||
|
|
'#empty_value' => '',
|
||
|
|
'#empty_option' => $required ? t('- Select -') : t('- None -'),
|
||
|
|
);
|
||
|
|
// The empty option is prepended to #options and purposively not merged
|
||
|
|
// to prevent another option in #options mistakenly using the same value
|
||
|
|
// as #empty_value.
|
||
|
|
$empty_option = array($element['#empty_value'] => $element['#empty_option']);
|
||
|
|
$element['#options'] = $empty_option + $element['#options'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a select form element.
|
||
|
|
*
|
||
|
|
* It is possible to group options together; to do this, change the format of
|
||
|
|
* $options to an associative array in which the keys are group labels, and the
|
||
|
|
* values are associative arrays in the normal $options format.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #value, #options, #description, #extra,
|
||
|
|
* #multiple, #required, #name, #attributes, #size.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_select($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
element_set_attributes($element, array('id', 'name', 'size'));
|
||
|
|
_form_set_class($element, array('form-select'));
|
||
|
|
|
||
|
|
return '<select' . drupal_attributes($element['#attributes']) . '>' . form_select_options($element) . '</select>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts an array of options into HTML, for use in select list form elements.
|
||
|
|
*
|
||
|
|
* This function calls itself recursively to obtain the values for each optgroup
|
||
|
|
* within the list of options and when the function encounters an object with
|
||
|
|
* an 'options' property inside $element['#options'].
|
||
|
|
*
|
||
|
|
* @param array $element
|
||
|
|
* An associative array containing the following key-value pairs:
|
||
|
|
* - #multiple: Optional Boolean indicating if the user may select more than
|
||
|
|
* one item.
|
||
|
|
* - #options: An associative array of options to render as HTML. Each array
|
||
|
|
* value can be a string, an array, or an object with an 'option' property:
|
||
|
|
* - A string or integer key whose value is a translated string is
|
||
|
|
* interpreted as a single HTML option element. Do not use placeholders
|
||
|
|
* that sanitize data: doing so will lead to double-escaping. Note that
|
||
|
|
* the key will be visible in the HTML and could be modified by malicious
|
||
|
|
* users, so don't put sensitive information in it.
|
||
|
|
* - A translated string key whose value is an array indicates a group of
|
||
|
|
* options. The translated string is used as the label attribute for the
|
||
|
|
* optgroup. Do not use placeholders to sanitize data: doing so will lead
|
||
|
|
* to double-escaping. The array should contain the options you wish to
|
||
|
|
* group and should follow the syntax of $element['#options'].
|
||
|
|
* - If the function encounters a string or integer key whose value is an
|
||
|
|
* object with an 'option' property, the key is ignored, the contents of
|
||
|
|
* the option property are interpreted as $element['#options'], and the
|
||
|
|
* resulting HTML is added to the output.
|
||
|
|
* - #value: Optional integer, string, or array representing which option(s)
|
||
|
|
* to pre-select when the list is first displayed. The integer or string
|
||
|
|
* must match the key of an option in the '#options' list. If '#multiple' is
|
||
|
|
* TRUE, this can be an array of integers or strings.
|
||
|
|
* @param array|null $choices
|
||
|
|
* (optional) Either an associative array of options in the same format as
|
||
|
|
* $element['#options'] above, or NULL. This parameter is only used internally
|
||
|
|
* and is not intended to be passed in to the initial function call.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
* An HTML string of options and optgroups for use in a select form element.
|
||
|
|
*/
|
||
|
|
function form_select_options($element, $choices = NULL) {
|
||
|
|
if (!isset($choices)) {
|
||
|
|
$choices = $element['#options'];
|
||
|
|
}
|
||
|
|
// array_key_exists() accommodates the rare event where $element['#value'] is NULL.
|
||
|
|
// isset() fails in this situation.
|
||
|
|
$value_valid = isset($element['#value']) || array_key_exists('#value', $element);
|
||
|
|
$value_is_array = $value_valid && is_array($element['#value']);
|
||
|
|
$options = '';
|
||
|
|
foreach ($choices as $key => $choice) {
|
||
|
|
if (is_array($choice)) {
|
||
|
|
$options .= '<optgroup label="' . check_plain($key) . '">';
|
||
|
|
$options .= form_select_options($element, $choice);
|
||
|
|
$options .= '</optgroup>';
|
||
|
|
}
|
||
|
|
elseif (is_object($choice)) {
|
||
|
|
$options .= form_select_options($element, $choice->option);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$key = (string) $key;
|
||
|
|
if ($value_valid && (!$value_is_array && (string) $element['#value'] === $key || ($value_is_array && in_array($key, $element['#value'])))) {
|
||
|
|
$selected = ' selected="selected"';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$selected = '';
|
||
|
|
}
|
||
|
|
$options .= '<option value="' . check_plain($key) . '"' . $selected . '>' . check_plain($choice) . '</option>';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $options;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the indexes of a select element's options matching a given key.
|
||
|
|
*
|
||
|
|
* This function is useful if you need to modify the options that are
|
||
|
|
* already in a form element; for example, to remove choices which are
|
||
|
|
* not valid because of additional filters imposed by another module.
|
||
|
|
* One example might be altering the choices in a taxonomy selector.
|
||
|
|
* To correctly handle the case of a multiple hierarchy taxonomy,
|
||
|
|
* #options arrays can now hold an array of objects, instead of a
|
||
|
|
* direct mapping of keys to labels, so that multiple choices in the
|
||
|
|
* selector can have the same key (and label). This makes it difficult
|
||
|
|
* to manipulate directly, which is why this helper function exists.
|
||
|
|
*
|
||
|
|
* This function does not support optgroups (when the elements of the
|
||
|
|
* #options array are themselves arrays), and will return FALSE if
|
||
|
|
* arrays are found. The caller must either flatten/restore or
|
||
|
|
* manually do their manipulations in this case, since returning the
|
||
|
|
* index is not sufficient, and supporting this would make the
|
||
|
|
* "helper" too complicated and cumbersome to be of any help.
|
||
|
|
*
|
||
|
|
* As usual with functions that can return array() or FALSE, do not
|
||
|
|
* forget to use === and !== if needed.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The select element to search.
|
||
|
|
* @param $key
|
||
|
|
* The key to look for.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* An array of indexes that match the given $key. Array will be
|
||
|
|
* empty if no elements were found. FALSE if optgroups were found.
|
||
|
|
*/
|
||
|
|
function form_get_options($element, $key) {
|
||
|
|
$keys = array();
|
||
|
|
foreach ($element['#options'] as $index => $choice) {
|
||
|
|
if (is_array($choice)) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
elseif (is_object($choice)) {
|
||
|
|
if (isset($choice->option[$key])) {
|
||
|
|
$keys[] = $index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif ($index == $key) {
|
||
|
|
$keys[] = $index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $keys;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a fieldset form element and its children.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #attributes, #children, #collapsed, #collapsible,
|
||
|
|
* #description, #id, #title, #value.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_fieldset($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
element_set_attributes($element, array('id'));
|
||
|
|
_form_set_class($element, array('form-wrapper'));
|
||
|
|
|
||
|
|
$output = '<fieldset' . drupal_attributes($element['#attributes']) . '>';
|
||
|
|
if (!empty($element['#title'])) {
|
||
|
|
// Always wrap fieldset legends in a SPAN for CSS positioning.
|
||
|
|
$output .= '<legend><span class="fieldset-legend">' . $element['#title'] . '</span></legend>';
|
||
|
|
}
|
||
|
|
$output .= '<div class="fieldset-wrapper">';
|
||
|
|
if (!empty($element['#description'])) {
|
||
|
|
$output .= '<div class="fieldset-description">' . $element['#description'] . '</div>';
|
||
|
|
}
|
||
|
|
$output .= $element['#children'];
|
||
|
|
if (isset($element['#value'])) {
|
||
|
|
$output .= $element['#value'];
|
||
|
|
}
|
||
|
|
$output .= '</div>';
|
||
|
|
$output .= "</fieldset>\n";
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a radio button form element.
|
||
|
|
*
|
||
|
|
* Note: The input "name" attribute needs to be sanitized before output, which
|
||
|
|
* is currently done by passing all attributes to drupal_attributes().
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #required, #return_value, #value, #attributes, #title,
|
||
|
|
* #description
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_radio($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'radio';
|
||
|
|
element_set_attributes($element, array('id', 'name', '#return_value' => 'value'));
|
||
|
|
|
||
|
|
if (isset($element['#return_value']) && $element['#value'] !== FALSE && $element['#value'] == $element['#return_value']) {
|
||
|
|
$element['#attributes']['checked'] = 'checked';
|
||
|
|
}
|
||
|
|
_form_set_class($element, array('form-radio'));
|
||
|
|
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a set of radio button form elements.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #value, #options, #description, #required,
|
||
|
|
* #attributes, #children.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_radios($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$attributes = array();
|
||
|
|
if (isset($element['#id'])) {
|
||
|
|
$attributes['id'] = $element['#id'];
|
||
|
|
}
|
||
|
|
$attributes['class'] = 'form-radios';
|
||
|
|
if (!empty($element['#attributes']['class'])) {
|
||
|
|
$attributes['class'] .= ' ' . implode(' ', $element['#attributes']['class']);
|
||
|
|
}
|
||
|
|
if (isset($element['#attributes']['title'])) {
|
||
|
|
$attributes['title'] = $element['#attributes']['title'];
|
||
|
|
}
|
||
|
|
return '<div' . drupal_attributes($attributes) . '>' . (!empty($element['#children']) ? $element['#children'] : '') . '</div>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expand a password_confirm field into two text boxes.
|
||
|
|
*/
|
||
|
|
function form_process_password_confirm($element) {
|
||
|
|
$element['pass1'] = array(
|
||
|
|
'#type' => 'password',
|
||
|
|
'#title' => t('Password'),
|
||
|
|
'#value' => empty($element['#value']) ? NULL : $element['#value']['pass1'],
|
||
|
|
'#required' => $element['#required'],
|
||
|
|
'#attributes' => array('class' => array('password-field')),
|
||
|
|
);
|
||
|
|
$element['pass2'] = array(
|
||
|
|
'#type' => 'password',
|
||
|
|
'#title' => t('Confirm password'),
|
||
|
|
'#value' => empty($element['#value']) ? NULL : $element['#value']['pass2'],
|
||
|
|
'#required' => $element['#required'],
|
||
|
|
'#attributes' => array('class' => array('password-confirm')),
|
||
|
|
);
|
||
|
|
$element['#element_validate'] = array('password_confirm_validate');
|
||
|
|
$element['#tree'] = TRUE;
|
||
|
|
|
||
|
|
if (isset($element['#size'])) {
|
||
|
|
$element['pass1']['#size'] = $element['pass2']['#size'] = $element['#size'];
|
||
|
|
}
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates a password_confirm element.
|
||
|
|
*/
|
||
|
|
function password_confirm_validate($element, &$element_state) {
|
||
|
|
$pass1 = trim($element['pass1']['#value']);
|
||
|
|
$pass2 = trim($element['pass2']['#value']);
|
||
|
|
if (strlen($pass1) > 0 || strlen($pass2) > 0) {
|
||
|
|
if (strcmp($pass1, $pass2)) {
|
||
|
|
form_error($element, t('The specified passwords do not match.'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif ($element['#required'] && !empty($element_state['input'])) {
|
||
|
|
form_error($element, t('Password field is required.'));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Password field must be converted from a two-element array into a single
|
||
|
|
// string regardless of validation results.
|
||
|
|
form_set_value($element['pass1'], NULL, $element_state);
|
||
|
|
form_set_value($element['pass2'], NULL, $element_state);
|
||
|
|
form_set_value($element, $pass1, $element_state);
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a date selection form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #value, #options, #description, #required,
|
||
|
|
* #attributes.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_date($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
|
||
|
|
$attributes = array();
|
||
|
|
if (isset($element['#id'])) {
|
||
|
|
$attributes['id'] = $element['#id'];
|
||
|
|
}
|
||
|
|
if (!empty($element['#attributes']['class'])) {
|
||
|
|
$attributes['class'] = (array) $element['#attributes']['class'];
|
||
|
|
}
|
||
|
|
$attributes['class'][] = 'container-inline';
|
||
|
|
|
||
|
|
return '<div' . drupal_attributes($attributes) . '>' . drupal_render_children($element) . '</div>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expands a date element into year, month, and day select elements.
|
||
|
|
*/
|
||
|
|
function form_process_date($element) {
|
||
|
|
// Default to current date
|
||
|
|
if (empty($element['#value'])) {
|
||
|
|
$element['#value'] = array(
|
||
|
|
'day' => format_date(REQUEST_TIME, 'custom', 'j'),
|
||
|
|
'month' => format_date(REQUEST_TIME, 'custom', 'n'),
|
||
|
|
'year' => format_date(REQUEST_TIME, 'custom', 'Y'),
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
$element['#tree'] = TRUE;
|
||
|
|
|
||
|
|
// Determine the order of day, month, year in the site's chosen date format.
|
||
|
|
$format = variable_get('date_format_short', 'm/d/Y - H:i');
|
||
|
|
$sort = array();
|
||
|
|
$sort['day'] = max(strpos($format, 'd'), strpos($format, 'j'));
|
||
|
|
$sort['month'] = max(strpos($format, 'm'), strpos($format, 'M'));
|
||
|
|
$sort['year'] = strpos($format, 'Y');
|
||
|
|
asort($sort);
|
||
|
|
$order = array_keys($sort);
|
||
|
|
|
||
|
|
// Output multi-selector for date.
|
||
|
|
foreach ($order as $type) {
|
||
|
|
switch ($type) {
|
||
|
|
case 'day':
|
||
|
|
$options = drupal_map_assoc(range(1, 31));
|
||
|
|
$title = t('Day');
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'month':
|
||
|
|
$options = drupal_map_assoc(range(1, 12), 'map_month');
|
||
|
|
$title = t('Month');
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'year':
|
||
|
|
$options = drupal_map_assoc(range(1900, 2050));
|
||
|
|
$title = t('Year');
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
$element[$type] = array(
|
||
|
|
'#type' => 'select',
|
||
|
|
'#title' => $title,
|
||
|
|
'#title_display' => 'invisible',
|
||
|
|
'#value' => $element['#value'][$type],
|
||
|
|
'#attributes' => $element['#attributes'],
|
||
|
|
'#options' => $options,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates the date type to prevent invalid dates (e.g., February 30, 2006).
|
||
|
|
*/
|
||
|
|
function date_validate($element) {
|
||
|
|
if (!checkdate($element['#value']['month'], $element['#value']['day'], $element['#value']['year'])) {
|
||
|
|
form_error($element, t('The specified date is invalid.'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Helper function for usage with drupal_map_assoc to display month names.
|
||
|
|
*/
|
||
|
|
function map_month($month) {
|
||
|
|
$months = &drupal_static(__FUNCTION__, array(
|
||
|
|
1 => 'Jan',
|
||
|
|
2 => 'Feb',
|
||
|
|
3 => 'Mar',
|
||
|
|
4 => 'Apr',
|
||
|
|
5 => 'May',
|
||
|
|
6 => 'Jun',
|
||
|
|
7 => 'Jul',
|
||
|
|
8 => 'Aug',
|
||
|
|
9 => 'Sep',
|
||
|
|
10 => 'Oct',
|
||
|
|
11 => 'Nov',
|
||
|
|
12 => 'Dec',
|
||
|
|
));
|
||
|
|
return t($months[$month]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value for a weight element, with zero as a default.
|
||
|
|
*/
|
||
|
|
function weight_value(&$form) {
|
||
|
|
if (isset($form['#default_value'])) {
|
||
|
|
$form['#value'] = $form['#default_value'];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$form['#value'] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expands a radios element into individual radio elements.
|
||
|
|
*/
|
||
|
|
function form_process_radios($element) {
|
||
|
|
if (count($element['#options']) > 0) {
|
||
|
|
$weight = 0;
|
||
|
|
foreach ($element['#options'] as $key => $choice) {
|
||
|
|
// Maintain order of options as defined in #options, in case the element
|
||
|
|
// defines custom option sub-elements, but does not define all option
|
||
|
|
// sub-elements.
|
||
|
|
$weight += 0.001;
|
||
|
|
|
||
|
|
$element += array($key => array());
|
||
|
|
// Generate the parents as the autogenerator does, so we will have a
|
||
|
|
// unique id for each radio button.
|
||
|
|
$parents_for_id = array_merge($element['#parents'], array($key));
|
||
|
|
$element[$key] += array(
|
||
|
|
'#type' => 'radio',
|
||
|
|
'#title' => $choice,
|
||
|
|
// The key is sanitized in drupal_attributes() during output from the
|
||
|
|
// theme function.
|
||
|
|
'#return_value' => $key,
|
||
|
|
// Use default or FALSE. A value of FALSE means that the radio button is
|
||
|
|
// not 'checked'.
|
||
|
|
'#default_value' => isset($element['#default_value']) ? $element['#default_value'] : FALSE,
|
||
|
|
'#attributes' => $element['#attributes'],
|
||
|
|
'#parents' => $element['#parents'],
|
||
|
|
'#id' => drupal_html_id('edit-' . implode('-', $parents_for_id)),
|
||
|
|
'#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
|
||
|
|
'#weight' => $weight,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a checkbox form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #id, #name, #attributes, #checked, #return_value.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_checkbox($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'checkbox';
|
||
|
|
element_set_attributes($element, array('id', 'name', '#return_value' => 'value'));
|
||
|
|
|
||
|
|
// Unchecked checkbox has #value of integer 0.
|
||
|
|
if (!empty($element['#checked'])) {
|
||
|
|
$element['#attributes']['checked'] = 'checked';
|
||
|
|
}
|
||
|
|
_form_set_class($element, array('form-checkbox'));
|
||
|
|
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a set of checkbox form elements.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #children, #attributes.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_checkboxes($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$attributes = array();
|
||
|
|
if (isset($element['#id'])) {
|
||
|
|
$attributes['id'] = $element['#id'];
|
||
|
|
}
|
||
|
|
$attributes['class'][] = 'form-checkboxes';
|
||
|
|
if (!empty($element['#attributes']['class'])) {
|
||
|
|
$attributes['class'] = array_merge($attributes['class'], $element['#attributes']['class']);
|
||
|
|
}
|
||
|
|
if (isset($element['#attributes']['title'])) {
|
||
|
|
$attributes['title'] = $element['#attributes']['title'];
|
||
|
|
}
|
||
|
|
return '<div' . drupal_attributes($attributes) . '>' . (!empty($element['#children']) ? $element['#children'] : '') . '</div>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds form element theming to an element if its title or description is set.
|
||
|
|
*
|
||
|
|
* This is used as a pre render function for checkboxes and radios.
|
||
|
|
*/
|
||
|
|
function form_pre_render_conditional_form_element($element) {
|
||
|
|
$t = get_t();
|
||
|
|
// Set the element's title attribute to show #title as a tooltip, if needed.
|
||
|
|
if (isset($element['#title']) && $element['#title_display'] == 'attribute') {
|
||
|
|
$element['#attributes']['title'] = $element['#title'];
|
||
|
|
if (!empty($element['#required'])) {
|
||
|
|
// Append an indication that this field is required.
|
||
|
|
$element['#attributes']['title'] .= ' (' . $t('Required') . ')';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($element['#title']) || isset($element['#description'])) {
|
||
|
|
$element['#theme_wrappers'][] = 'form_element';
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the #checked property of a checkbox element.
|
||
|
|
*/
|
||
|
|
function form_process_checkbox($element, $form_state) {
|
||
|
|
$value = $element['#value'];
|
||
|
|
$return_value = $element['#return_value'];
|
||
|
|
// On form submission, the #value of an available and enabled checked
|
||
|
|
// checkbox is #return_value, and the #value of an available and enabled
|
||
|
|
// unchecked checkbox is integer 0. On not submitted forms, and for
|
||
|
|
// checkboxes with #access=FALSE or #disabled=TRUE, the #value is
|
||
|
|
// #default_value (integer 0 if #default_value is NULL). Most of the time,
|
||
|
|
// a string comparison of #value and #return_value is sufficient for
|
||
|
|
// determining the "checked" state, but a value of TRUE always means checked
|
||
|
|
// (even if #return_value is 'foo'), and a value of FALSE or integer 0 always
|
||
|
|
// means unchecked (even if #return_value is '' or '0').
|
||
|
|
if ($value === TRUE || $value === FALSE || $value === 0) {
|
||
|
|
$element['#checked'] = (bool) $value;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Compare as strings, so that 15 is not considered equal to '15foo', but 1
|
||
|
|
// is considered equal to '1'. This cast does not imply that either #value
|
||
|
|
// or #return_value is expected to be a string.
|
||
|
|
$element['#checked'] = ((string) $value === (string) $return_value);
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a checkboxes form element.
|
||
|
|
*/
|
||
|
|
function form_process_checkboxes($element) {
|
||
|
|
$value = is_array($element['#value']) ? $element['#value'] : array();
|
||
|
|
$element['#tree'] = TRUE;
|
||
|
|
if (count($element['#options']) > 0) {
|
||
|
|
if (!isset($element['#default_value']) || $element['#default_value'] == 0) {
|
||
|
|
$element['#default_value'] = array();
|
||
|
|
}
|
||
|
|
$weight = 0;
|
||
|
|
foreach ($element['#options'] as $key => $choice) {
|
||
|
|
// Integer 0 is not a valid #return_value, so use '0' instead.
|
||
|
|
// @see form_type_checkbox_value().
|
||
|
|
// @todo For Drupal 8, cast all integer keys to strings for consistency
|
||
|
|
// with form_process_radios().
|
||
|
|
if ($key === 0) {
|
||
|
|
$key = '0';
|
||
|
|
}
|
||
|
|
// Maintain order of options as defined in #options, in case the element
|
||
|
|
// defines custom option sub-elements, but does not define all option
|
||
|
|
// sub-elements.
|
||
|
|
$weight += 0.001;
|
||
|
|
|
||
|
|
$element += array($key => array());
|
||
|
|
$element[$key] += array(
|
||
|
|
'#type' => 'checkbox',
|
||
|
|
'#title' => $choice,
|
||
|
|
'#return_value' => $key,
|
||
|
|
'#default_value' => isset($value[$key]) ? $key : NULL,
|
||
|
|
'#attributes' => $element['#attributes'],
|
||
|
|
'#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
|
||
|
|
'#weight' => $weight,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a form actions container element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* form actions container.
|
||
|
|
* @param $form_state
|
||
|
|
* The $form_state array for the form this element belongs to.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The processed element.
|
||
|
|
*/
|
||
|
|
function form_process_actions($element, &$form_state) {
|
||
|
|
$element['#attributes']['class'][] = 'form-actions';
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a form button element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* form button.
|
||
|
|
* @param $form_state
|
||
|
|
* The $form_state array for the form this element belongs to.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The processed element.
|
||
|
|
*/
|
||
|
|
function form_process_button($element, &$form_state) {
|
||
|
|
// We normally want to add drupal.form-single-submit so that the double submit
|
||
|
|
// protection can be added to the site, however, with the addition of
|
||
|
|
// javascript_always_use_jquery, this would make most pages with a login
|
||
|
|
// block or a search form have jquery always added, changing what people who
|
||
|
|
// set the javascript_always_use_jquery variable to FALSE would have expected.
|
||
|
|
if (variable_get('javascript_always_use_jquery', TRUE) && variable_get('javascript_use_double_submit_protection', TRUE)) {
|
||
|
|
$element['#attached']['library'][] = array('system', 'drupal.form-single-submit');
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a container element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* container.
|
||
|
|
* @param $form_state
|
||
|
|
* The $form_state array for the form this element belongs to.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The processed element.
|
||
|
|
*/
|
||
|
|
function form_process_container($element, &$form_state) {
|
||
|
|
// Generate the ID of the element if it's not explicitly given.
|
||
|
|
if (!isset($element['#id'])) {
|
||
|
|
$element['#id'] = drupal_html_id(implode('-', $element['#parents']) . '-wrapper');
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML to wrap child elements in a container.
|
||
|
|
*
|
||
|
|
* Used for grouped form items. Can also be used as a theme wrapper for any
|
||
|
|
* renderable element, to surround it with a <div> and add attributes such as
|
||
|
|
* classes or an HTML ID.
|
||
|
|
*
|
||
|
|
* See the @link forms_api_reference.html Form API reference @endlink for more
|
||
|
|
* information on the #theme_wrappers render array property.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #id, #attributes, #children.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_container($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
// Ensure #attributes is set.
|
||
|
|
$element += array('#attributes' => array());
|
||
|
|
|
||
|
|
// Special handling for form elements.
|
||
|
|
if (isset($element['#array_parents'])) {
|
||
|
|
// Assign an html ID.
|
||
|
|
if (!isset($element['#attributes']['id'])) {
|
||
|
|
$element['#attributes']['id'] = $element['#id'];
|
||
|
|
}
|
||
|
|
// Add the 'form-wrapper' class.
|
||
|
|
$element['#attributes']['class'][] = 'form-wrapper';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<div' . drupal_attributes($element['#attributes']) . '>' . $element['#children'] . '</div>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a table with radio buttons or checkboxes.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties and children of
|
||
|
|
* the tableselect element. Properties used: #header, #options, #empty,
|
||
|
|
* and #js_select. The #options property is an array of selection options;
|
||
|
|
* each array element of #options is an array of properties. These
|
||
|
|
* properties can include #attributes, which is added to the
|
||
|
|
* table row's HTML attributes; see theme_table(). An example of per-row
|
||
|
|
* options:
|
||
|
|
* @code
|
||
|
|
* $options = array(
|
||
|
|
* array(
|
||
|
|
* 'title' => 'How to Learn Drupal',
|
||
|
|
* 'content_type' => 'Article',
|
||
|
|
* 'status' => 'published',
|
||
|
|
* '#attributes' => array('class' => array('article-row')),
|
||
|
|
* ),
|
||
|
|
* array(
|
||
|
|
* 'title' => 'Privacy Policy',
|
||
|
|
* 'content_type' => 'Page',
|
||
|
|
* 'status' => 'published',
|
||
|
|
* '#attributes' => array('class' => array('page-row')),
|
||
|
|
* ),
|
||
|
|
* );
|
||
|
|
* $header = array(
|
||
|
|
* 'title' => t('Title'),
|
||
|
|
* 'content_type' => t('Content type'),
|
||
|
|
* 'status' => t('Status'),
|
||
|
|
* );
|
||
|
|
* $form['table'] = array(
|
||
|
|
* '#type' => 'tableselect',
|
||
|
|
* '#header' => $header,
|
||
|
|
* '#options' => $options,
|
||
|
|
* '#empty' => t('No content available.'),
|
||
|
|
* );
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_tableselect($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$rows = array();
|
||
|
|
$header = $element['#header'];
|
||
|
|
if (!empty($element['#options'])) {
|
||
|
|
// Generate a table row for each selectable item in #options.
|
||
|
|
foreach (element_children($element) as $key) {
|
||
|
|
$row = array();
|
||
|
|
|
||
|
|
$row['data'] = array();
|
||
|
|
if (isset($element['#options'][$key]['#attributes'])) {
|
||
|
|
$row += $element['#options'][$key]['#attributes'];
|
||
|
|
}
|
||
|
|
// Render the checkbox / radio element.
|
||
|
|
$row['data'][] = drupal_render($element[$key]);
|
||
|
|
|
||
|
|
// As theme_table only maps header and row columns by order, create the
|
||
|
|
// correct order by iterating over the header fields.
|
||
|
|
foreach ($element['#header'] as $fieldname => $title) {
|
||
|
|
$row['data'][] = $element['#options'][$key][$fieldname];
|
||
|
|
}
|
||
|
|
$rows[] = $row;
|
||
|
|
}
|
||
|
|
// Add an empty header or a "Select all" checkbox to provide room for the
|
||
|
|
// checkboxes/radios in the first table column.
|
||
|
|
if ($element['#js_select']) {
|
||
|
|
// Add a "Select all" checkbox.
|
||
|
|
drupal_add_js('misc/tableselect.js');
|
||
|
|
array_unshift($header, array('class' => array('select-all')));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Add an empty header when radio buttons are displayed or a "Select all"
|
||
|
|
// checkbox is not desired.
|
||
|
|
array_unshift($header, '');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return theme('table', array('header' => $header, 'rows' => $rows, 'empty' => $element['#empty'], 'attributes' => $element['#attributes']));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates checkbox or radio elements to populate a tableselect table.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* tableselect element.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The processed element.
|
||
|
|
*/
|
||
|
|
function form_process_tableselect($element) {
|
||
|
|
|
||
|
|
if ($element['#multiple']) {
|
||
|
|
$value = is_array($element['#value']) ? $element['#value'] : array();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Advanced selection behavior makes no sense for radios.
|
||
|
|
$element['#js_select'] = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
$element['#tree'] = TRUE;
|
||
|
|
|
||
|
|
if (count($element['#options']) > 0) {
|
||
|
|
if (!isset($element['#default_value']) || $element['#default_value'] === 0) {
|
||
|
|
$element['#default_value'] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create a checkbox or radio for each item in #options in such a way that
|
||
|
|
// the value of the tableselect element behaves as if it had been of type
|
||
|
|
// checkboxes or radios.
|
||
|
|
foreach ($element['#options'] as $key => $choice) {
|
||
|
|
// Do not overwrite manually created children.
|
||
|
|
if (!isset($element[$key])) {
|
||
|
|
if ($element['#multiple']) {
|
||
|
|
$title = '';
|
||
|
|
if (!empty($element['#options'][$key]['title']['data']['#title'])) {
|
||
|
|
$title = t('Update @title', array(
|
||
|
|
'@title' => $element['#options'][$key]['title']['data']['#title'],
|
||
|
|
));
|
||
|
|
}
|
||
|
|
$element[$key] = array(
|
||
|
|
'#type' => 'checkbox',
|
||
|
|
'#title' => $title,
|
||
|
|
'#title_display' => 'invisible',
|
||
|
|
'#return_value' => $key,
|
||
|
|
'#default_value' => isset($value[$key]) ? $key : NULL,
|
||
|
|
'#attributes' => $element['#attributes'],
|
||
|
|
'#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Generate the parents as the autogenerator does, so we will have a
|
||
|
|
// unique id for each radio button.
|
||
|
|
$parents_for_id = array_merge($element['#parents'], array($key));
|
||
|
|
$element[$key] = array(
|
||
|
|
'#type' => 'radio',
|
||
|
|
'#title' => '',
|
||
|
|
'#return_value' => $key,
|
||
|
|
'#default_value' => ($element['#default_value'] == $key) ? $key : NULL,
|
||
|
|
'#attributes' => $element['#attributes'],
|
||
|
|
'#parents' => $element['#parents'],
|
||
|
|
'#id' => drupal_html_id('edit-' . implode('-', $parents_for_id)),
|
||
|
|
'#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
if (isset($element['#options'][$key]['#weight'])) {
|
||
|
|
$element[$key]['#weight'] = $element['#options'][$key]['#weight'];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$element['#value'] = array();
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes a machine-readable name form element.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element to process. Properties used:
|
||
|
|
* - #machine_name: An associative array containing:
|
||
|
|
* - exists: A function name to invoke for checking whether a submitted
|
||
|
|
* machine name value already exists. The submitted value is passed as
|
||
|
|
* argument. In most cases, an existing API or menu argument loader
|
||
|
|
* function can be re-used. The callback is only invoked, if the submitted
|
||
|
|
* value differs from the element's #default_value.
|
||
|
|
* - source: (optional) The #array_parents of the form element containing
|
||
|
|
* the human-readable name (i.e., as contained in the $form structure) to
|
||
|
|
* use as source for the machine name. Defaults to array('name').
|
||
|
|
* - label: (optional) A text to display as label for the machine name value
|
||
|
|
* after the human-readable name form element. Defaults to "Machine name".
|
||
|
|
* - replace_pattern: (optional) A regular expression (without delimiters)
|
||
|
|
* matching disallowed characters in the machine name. Defaults to
|
||
|
|
* '[^a-z0-9_]+'.
|
||
|
|
* - replace: (optional) A character to replace disallowed characters in the
|
||
|
|
* machine name via JavaScript. Defaults to '_' (underscore). When using a
|
||
|
|
* different character, 'replace_pattern' needs to be set accordingly.
|
||
|
|
* - error: (optional) A custom form error message string to show, if the
|
||
|
|
* machine name contains disallowed characters.
|
||
|
|
* - standalone: (optional) Whether the live preview should stay in its own
|
||
|
|
* form element rather than in the suffix of the source element. Defaults
|
||
|
|
* to FALSE.
|
||
|
|
* - #maxlength: (optional) Should be set to the maximum allowed length of the
|
||
|
|
* machine name. Defaults to 64.
|
||
|
|
* - #disabled: (optional) Should be set to TRUE in case an existing machine
|
||
|
|
* name must not be changed after initial creation.
|
||
|
|
*/
|
||
|
|
function form_process_machine_name($element, &$form_state) {
|
||
|
|
// Apply default form element properties.
|
||
|
|
$element += array(
|
||
|
|
'#title' => t('Machine-readable name'),
|
||
|
|
'#description' => t('A unique machine-readable name. Can only contain lowercase letters, numbers, and underscores.'),
|
||
|
|
'#machine_name' => array(),
|
||
|
|
'#field_prefix' => '',
|
||
|
|
'#field_suffix' => '',
|
||
|
|
'#suffix' => '',
|
||
|
|
);
|
||
|
|
// A form element that only wants to set one #machine_name property (usually
|
||
|
|
// 'source' only) would leave all other properties undefined, if the defaults
|
||
|
|
// were defined in hook_element_info(). Therefore, we apply the defaults here.
|
||
|
|
$element['#machine_name'] += array(
|
||
|
|
'source' => array('name'),
|
||
|
|
'target' => '#' . $element['#id'],
|
||
|
|
'label' => t('Machine name'),
|
||
|
|
'replace_pattern' => '[^a-z0-9_]+',
|
||
|
|
'replace' => '_',
|
||
|
|
'standalone' => FALSE,
|
||
|
|
'field_prefix' => $element['#field_prefix'],
|
||
|
|
'field_suffix' => $element['#field_suffix'],
|
||
|
|
);
|
||
|
|
|
||
|
|
// By default, machine names are restricted to Latin alphanumeric characters.
|
||
|
|
// So, default to LTR directionality.
|
||
|
|
if (!isset($element['#attributes'])) {
|
||
|
|
$element['#attributes'] = array();
|
||
|
|
}
|
||
|
|
$element['#attributes'] += array('dir' => 'ltr');
|
||
|
|
|
||
|
|
// The source element defaults to array('name'), but may have been overidden.
|
||
|
|
if (empty($element['#machine_name']['source'])) {
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Retrieve the form element containing the human-readable name from the
|
||
|
|
// complete form in $form_state. By reference, because we may need to append
|
||
|
|
// a #field_suffix that will hold the live preview.
|
||
|
|
$key_exists = NULL;
|
||
|
|
$source = drupal_array_get_nested_value($form_state['complete form'], $element['#machine_name']['source'], $key_exists);
|
||
|
|
if (!$key_exists) {
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
$suffix_id = $source['#id'] . '-machine-name-suffix';
|
||
|
|
$element['#machine_name']['suffix'] = '#' . $suffix_id;
|
||
|
|
|
||
|
|
if ($element['#machine_name']['standalone']) {
|
||
|
|
$element['#suffix'] .= ' <small id="' . $suffix_id . '"> </small>';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Append a field suffix to the source form element, which will contain
|
||
|
|
// the live preview of the machine name.
|
||
|
|
$source += array('#field_suffix' => '');
|
||
|
|
$source['#field_suffix'] .= ' <small id="' . $suffix_id . '"> </small>';
|
||
|
|
|
||
|
|
$parents = array_merge($element['#machine_name']['source'], array('#field_suffix'));
|
||
|
|
drupal_array_set_nested_value($form_state['complete form'], $parents, $source['#field_suffix']);
|
||
|
|
}
|
||
|
|
|
||
|
|
$js_settings = array(
|
||
|
|
'type' => 'setting',
|
||
|
|
'data' => array(
|
||
|
|
'machineName' => array(
|
||
|
|
'#' . $source['#id'] => $element['#machine_name'],
|
||
|
|
),
|
||
|
|
),
|
||
|
|
);
|
||
|
|
$element['#attached']['js'][] = 'misc/machine-name.js';
|
||
|
|
$element['#attached']['js'][] = $js_settings;
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Form element validation handler for machine_name elements.
|
||
|
|
*
|
||
|
|
* Note that #maxlength is validated by _form_validate() already.
|
||
|
|
*/
|
||
|
|
function form_validate_machine_name(&$element, &$form_state) {
|
||
|
|
// Verify that the machine name not only consists of replacement tokens.
|
||
|
|
if (preg_match('@^' . $element['#machine_name']['replace'] . '+$@', $element['#value'])) {
|
||
|
|
form_error($element, t('The machine-readable name must contain unique characters.'));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Verify that the machine name contains no disallowed characters.
|
||
|
|
if (preg_match('@' . $element['#machine_name']['replace_pattern'] . '@', $element['#value'])) {
|
||
|
|
if (!isset($element['#machine_name']['error'])) {
|
||
|
|
// Since a hyphen is the most common alternative replacement character,
|
||
|
|
// a corresponding validation error message is supported here.
|
||
|
|
if ($element['#machine_name']['replace'] == '-') {
|
||
|
|
form_error($element, t('The machine-readable name must contain only lowercase letters, numbers, and hyphens.'));
|
||
|
|
}
|
||
|
|
// Otherwise, we assume the default (underscore).
|
||
|
|
else {
|
||
|
|
form_error($element, t('The machine-readable name must contain only lowercase letters, numbers, and underscores.'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
form_error($element, $element['#machine_name']['error']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Verify that the machine name is unique.
|
||
|
|
if ($element['#default_value'] !== $element['#value']) {
|
||
|
|
$function = $element['#machine_name']['exists'];
|
||
|
|
if ($function($element['#value'], $element, $form_state)) {
|
||
|
|
form_error($element, t('The machine-readable name is already in use. It must be unique.'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Arranges fieldsets into groups.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* fieldset. Note that $element must be taken by reference here, so processed
|
||
|
|
* child elements are taken over into $form_state.
|
||
|
|
* @param $form_state
|
||
|
|
* The $form_state array for the form this fieldset belongs to.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The processed element.
|
||
|
|
*/
|
||
|
|
function form_process_fieldset(&$element, &$form_state) {
|
||
|
|
$parents = implode('][', $element['#parents']);
|
||
|
|
|
||
|
|
// Each fieldset forms a new group. The #type 'vertical_tabs' basically only
|
||
|
|
// injects a new fieldset.
|
||
|
|
$form_state['groups'][$parents]['#group_exists'] = TRUE;
|
||
|
|
$element['#groups'] = &$form_state['groups'];
|
||
|
|
|
||
|
|
// Process vertical tabs group member fieldsets.
|
||
|
|
if (isset($element['#group'])) {
|
||
|
|
// Add this fieldset to the defined group (by reference).
|
||
|
|
$group = $element['#group'];
|
||
|
|
$form_state['groups'][$group][] = &$element;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Contains form element summary functionalities.
|
||
|
|
$element['#attached']['library'][] = array('system', 'drupal.form');
|
||
|
|
|
||
|
|
// The .form-wrapper class is required for #states to treat fieldsets like
|
||
|
|
// containers.
|
||
|
|
if (!isset($element['#attributes']['class'])) {
|
||
|
|
$element['#attributes']['class'] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Collapsible fieldsets
|
||
|
|
if (!empty($element['#collapsible'])) {
|
||
|
|
$element['#attached']['library'][] = array('system', 'drupal.collapse');
|
||
|
|
$element['#attributes']['class'][] = 'collapsible';
|
||
|
|
if (!empty($element['#collapsed'])) {
|
||
|
|
$element['#attributes']['class'][] = 'collapsed';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds members of this group as actual elements for rendering.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* fieldset.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The modified element with all group members.
|
||
|
|
*/
|
||
|
|
function form_pre_render_fieldset($element) {
|
||
|
|
// Fieldsets may be rendered outside of a Form API context.
|
||
|
|
if (!isset($element['#parents']) || !isset($element['#groups'])) {
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
// Inject group member elements belonging to this group.
|
||
|
|
$parents = implode('][', $element['#parents']);
|
||
|
|
$children = element_children($element['#groups'][$parents]);
|
||
|
|
if (!empty($children)) {
|
||
|
|
foreach ($children as $key) {
|
||
|
|
// Break references and indicate that the element should be rendered as
|
||
|
|
// group member.
|
||
|
|
$child = (array) $element['#groups'][$parents][$key];
|
||
|
|
$child['#group_fieldset'] = TRUE;
|
||
|
|
// Inject the element as new child element.
|
||
|
|
$element[] = $child;
|
||
|
|
|
||
|
|
$sort = TRUE;
|
||
|
|
}
|
||
|
|
// Re-sort the element's children if we injected group member elements.
|
||
|
|
if (isset($sort)) {
|
||
|
|
$element['#sorted'] = FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($element['#group'])) {
|
||
|
|
$group = $element['#group'];
|
||
|
|
// If this element belongs to a group, but the group-holding element does
|
||
|
|
// not exist, we need to render it (at its original location).
|
||
|
|
if (!isset($element['#groups'][$group]['#group_exists'])) {
|
||
|
|
// Intentionally empty to clarify the flow; we simply return $element.
|
||
|
|
}
|
||
|
|
// If we injected this element into the group, then we want to render it.
|
||
|
|
elseif (!empty($element['#group_fieldset'])) {
|
||
|
|
// Intentionally empty to clarify the flow; we simply return $element.
|
||
|
|
}
|
||
|
|
// Otherwise, this element belongs to a group and the group exists, so we do
|
||
|
|
// not render it.
|
||
|
|
elseif (element_children($element['#groups'][$group])) {
|
||
|
|
$element['#printed'] = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a group formatted as vertical tabs.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* An associative array containing the properties and children of the
|
||
|
|
* fieldset.
|
||
|
|
* @param $form_state
|
||
|
|
* The $form_state array for the form this vertical tab widget belongs to.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The processed element.
|
||
|
|
*/
|
||
|
|
function form_process_vertical_tabs($element, &$form_state) {
|
||
|
|
// Inject a new fieldset as child, so that form_process_fieldset() processes
|
||
|
|
// this fieldset like any other fieldset.
|
||
|
|
$element['group'] = array(
|
||
|
|
'#type' => 'fieldset',
|
||
|
|
'#theme_wrappers' => array(),
|
||
|
|
'#parents' => $element['#parents'],
|
||
|
|
);
|
||
|
|
|
||
|
|
// The JavaScript stores the currently selected tab in this hidden
|
||
|
|
// field so that the active tab can be restored the next time the
|
||
|
|
// form is rendered, e.g. on preview pages or when form validation
|
||
|
|
// fails.
|
||
|
|
$name = implode('__', $element['#parents']);
|
||
|
|
if (isset($form_state['values'][$name . '__active_tab'])) {
|
||
|
|
$element['#default_tab'] = $form_state['values'][$name . '__active_tab'];
|
||
|
|
}
|
||
|
|
$element[$name . '__active_tab'] = array(
|
||
|
|
'#type' => 'hidden',
|
||
|
|
'#default_value' => $element['#default_tab'],
|
||
|
|
'#attributes' => array('class' => array('vertical-tabs-active-tab')),
|
||
|
|
);
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for an element's children fieldsets as vertical tabs.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties and children of
|
||
|
|
* the fieldset. Properties used: #children.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_vertical_tabs($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
// Add required JavaScript and Stylesheet.
|
||
|
|
drupal_add_library('system', 'drupal.vertical-tabs');
|
||
|
|
|
||
|
|
$output = '<h2 class="element-invisible">' . t('Vertical Tabs') . '</h2>';
|
||
|
|
$output .= '<div class="vertical-tabs-panes">' . $element['#children'] . '</div>';
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a submit button form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #attributes, #button_type, #name, #value.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_submit($variables) {
|
||
|
|
return theme('button', $variables['element']);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a button form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #attributes, #button_type, #name, #value.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_button($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'submit';
|
||
|
|
element_set_attributes($element, array('id', 'name', 'value'));
|
||
|
|
|
||
|
|
// Remove name attribute, if empty, for W3C compliance.
|
||
|
|
if (isset($element['#attributes']['name']) && $element['#attributes']['name'] === '') {
|
||
|
|
unset($element['#attributes']['name']);
|
||
|
|
}
|
||
|
|
|
||
|
|
$element['#attributes']['class'][] = 'form-' . $element['#button_type'];
|
||
|
|
if (!empty($element['#attributes']['disabled'])) {
|
||
|
|
$element['#attributes']['class'][] = 'form-button-disabled';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for an image button form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #attributes, #button_type, #name, #value, #title, #src.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_image_button($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'image';
|
||
|
|
element_set_attributes($element, array('id', 'name', 'value'));
|
||
|
|
|
||
|
|
$element['#attributes']['src'] = file_create_url($element['#src']);
|
||
|
|
if (!empty($element['#title'])) {
|
||
|
|
$element['#attributes']['alt'] = $element['#title'];
|
||
|
|
$element['#attributes']['title'] = $element['#title'];
|
||
|
|
}
|
||
|
|
|
||
|
|
$element['#attributes']['class'][] = 'form-' . $element['#button_type'];
|
||
|
|
if (!empty($element['#attributes']['disabled'])) {
|
||
|
|
$element['#attributes']['class'][] = 'form-button-disabled';
|
||
|
|
}
|
||
|
|
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a hidden form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #name, #value, #attributes.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_hidden($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'hidden';
|
||
|
|
element_set_attributes($element, array('name', 'value'));
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . " />\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Process function to prepare autocomplete data.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* A textfield or other element with a #autocomplete_path.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
* The processed form element.
|
||
|
|
*/
|
||
|
|
function form_process_autocomplete($element) {
|
||
|
|
$element['#autocomplete_input'] = array();
|
||
|
|
if ($element['#autocomplete_path'] && drupal_valid_path($element['#autocomplete_path'])) {
|
||
|
|
$element['#autocomplete_input']['#id'] = $element['#id'] .'-autocomplete';
|
||
|
|
// Force autocomplete to use non-clean URLs since this protects against the
|
||
|
|
// browser interpreting the path plus search string as an actual file.
|
||
|
|
$current_clean_url = isset($GLOBALS['conf']['clean_url']) ? $GLOBALS['conf']['clean_url'] : NULL;
|
||
|
|
$GLOBALS['conf']['clean_url'] = 0;
|
||
|
|
// Force the script path to 'index.php', in case the server is not
|
||
|
|
// configured to find it automatically. Normally it is the responsibility
|
||
|
|
// of the site to do this themselves using hook_url_outbound_alter() (see
|
||
|
|
// url()) but since this code is forcing non-clean URLs on sites that don't
|
||
|
|
// normally use them, it is done here instead.
|
||
|
|
$element['#autocomplete_input']['#url_value'] = url($element['#autocomplete_path'], array('absolute' => TRUE, 'script' => 'index.php'));
|
||
|
|
$GLOBALS['conf']['clean_url'] = $current_clean_url;
|
||
|
|
}
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a textfield form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #value, #description, #size, #maxlength,
|
||
|
|
* #required, #attributes, #autocomplete_path.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_textfield($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'text';
|
||
|
|
element_set_attributes($element, array('id', 'name', 'value', 'size', 'maxlength'));
|
||
|
|
_form_set_class($element, array('form-text'));
|
||
|
|
|
||
|
|
$extra = '';
|
||
|
|
if ($element['#autocomplete_path'] && !empty($element['#autocomplete_input'])) {
|
||
|
|
drupal_add_library('system', 'drupal.autocomplete');
|
||
|
|
$element['#attributes']['class'][] = 'form-autocomplete';
|
||
|
|
|
||
|
|
$attributes = array();
|
||
|
|
$attributes['type'] = 'hidden';
|
||
|
|
$attributes['id'] = $element['#autocomplete_input']['#id'];
|
||
|
|
$attributes['value'] = $element['#autocomplete_input']['#url_value'];
|
||
|
|
$attributes['disabled'] = 'disabled';
|
||
|
|
$attributes['class'][] = 'autocomplete';
|
||
|
|
$extra = '<input' . drupal_attributes($attributes) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
$output = '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
|
||
|
|
return $output . $extra;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a form.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #action, #method, #attributes, #children
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_form($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
if (isset($element['#action'])) {
|
||
|
|
$element['#attributes']['action'] = drupal_strip_dangerous_protocols($element['#action']);
|
||
|
|
}
|
||
|
|
element_set_attributes($element, array('method', 'id'));
|
||
|
|
if (empty($element['#attributes']['accept-charset'])) {
|
||
|
|
$element['#attributes']['accept-charset'] = "UTF-8";
|
||
|
|
}
|
||
|
|
// Anonymous DIV to satisfy XHTML compliance.
|
||
|
|
return '<form' . drupal_attributes($element['#attributes']) . '><div>' . $element['#children'] . '</div></form>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a textarea form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #value, #description, #rows, #cols, #required,
|
||
|
|
* #attributes
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_textarea($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
element_set_attributes($element, array('id', 'name', 'cols', 'rows'));
|
||
|
|
_form_set_class($element, array('form-textarea'));
|
||
|
|
|
||
|
|
$wrapper_attributes = array(
|
||
|
|
'class' => array('form-textarea-wrapper'),
|
||
|
|
);
|
||
|
|
|
||
|
|
// Add resizable behavior.
|
||
|
|
if (!empty($element['#resizable'])) {
|
||
|
|
drupal_add_library('system', 'drupal.textarea');
|
||
|
|
$wrapper_attributes['class'][] = 'resizable';
|
||
|
|
}
|
||
|
|
|
||
|
|
$output = '<div' . drupal_attributes($wrapper_attributes) . '>';
|
||
|
|
$output .= '<textarea' . drupal_attributes($element['#attributes']) . '>' . check_plain($element['#value']) . '</textarea>';
|
||
|
|
$output .= '</div>';
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a password form element.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #value, #description, #size, #maxlength,
|
||
|
|
* #required, #attributes.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_password($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'password';
|
||
|
|
element_set_attributes($element, array('id', 'name', 'size', 'maxlength'));
|
||
|
|
_form_set_class($element, array('form-text'));
|
||
|
|
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expands a weight element into a select element.
|
||
|
|
*/
|
||
|
|
function form_process_weight($element) {
|
||
|
|
$element['#is_weight'] = TRUE;
|
||
|
|
|
||
|
|
// If the number of options is small enough, use a select field.
|
||
|
|
$max_elements = variable_get('drupal_weight_select_max', DRUPAL_WEIGHT_SELECT_MAX);
|
||
|
|
if ($element['#delta'] <= $max_elements) {
|
||
|
|
$element['#type'] = 'select';
|
||
|
|
$weights = array();
|
||
|
|
for ($n = (-1 * $element['#delta']); $n <= $element['#delta']; $n++) {
|
||
|
|
$weights[$n] = $n;
|
||
|
|
}
|
||
|
|
if (isset($element['#default_value'])) {
|
||
|
|
$default_value = (int) $element['#default_value'];
|
||
|
|
if (!isset($weights[$default_value])) {
|
||
|
|
$weights[$default_value] = $default_value;
|
||
|
|
ksort($weights);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$element['#options'] = $weights;
|
||
|
|
$element += element_info('select');
|
||
|
|
}
|
||
|
|
// Otherwise, use a text field.
|
||
|
|
else {
|
||
|
|
$element['#type'] = 'textfield';
|
||
|
|
// Use a field big enough to fit most weights.
|
||
|
|
$element['#size'] = 10;
|
||
|
|
$element['#element_validate'] = array('element_validate_integer');
|
||
|
|
$element += element_info('textfield');
|
||
|
|
}
|
||
|
|
|
||
|
|
return $element;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a file upload form element.
|
||
|
|
*
|
||
|
|
* For assistance with handling the uploaded file correctly, see the API
|
||
|
|
* provided by file.inc.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #name, #size, #description, #required,
|
||
|
|
* #attributes.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_file($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
$element['#attributes']['type'] = 'file';
|
||
|
|
element_set_attributes($element, array('id', 'name', 'size'));
|
||
|
|
_form_set_class($element, array('form-file'));
|
||
|
|
|
||
|
|
return '<input' . drupal_attributes($element['#attributes']) . ' />';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a form element.
|
||
|
|
*
|
||
|
|
* Each form element is wrapped in a DIV container having the following CSS
|
||
|
|
* classes:
|
||
|
|
* - form-item: Generic for all form elements.
|
||
|
|
* - form-type-#type: The internal element #type.
|
||
|
|
* - form-item-#name: The internal form element #name (usually derived from the
|
||
|
|
* $form structure and set via form_builder()).
|
||
|
|
* - form-disabled: Only set if the form element is #disabled.
|
||
|
|
*
|
||
|
|
* In addition to the element itself, the DIV contains a label for the element
|
||
|
|
* based on the optional #title_display property, and an optional #description.
|
||
|
|
*
|
||
|
|
* The optional #title_display property can have these values:
|
||
|
|
* - before: The label is output before the element. This is the default.
|
||
|
|
* The label includes the #title and the required marker, if #required.
|
||
|
|
* - after: The label is output after the element. For example, this is used
|
||
|
|
* for radio and checkbox #type elements as set in system_element_info().
|
||
|
|
* If the #title is empty but the field is #required, the label will
|
||
|
|
* contain only the required marker.
|
||
|
|
* - invisible: Labels are critical for screen readers to enable them to
|
||
|
|
* properly navigate through forms but can be visually distracting. This
|
||
|
|
* property hides the label for everyone except screen readers.
|
||
|
|
* - attribute: Set the title attribute on the element to create a tooltip
|
||
|
|
* but output no label element. This is supported only for checkboxes
|
||
|
|
* and radios in form_pre_render_conditional_form_element(). It is used
|
||
|
|
* where a visual label is not needed, such as a table of checkboxes where
|
||
|
|
* the row and column provide the context. The tooltip will include the
|
||
|
|
* title and required marker.
|
||
|
|
*
|
||
|
|
* If the #title property is not set, then the label and any required marker
|
||
|
|
* will not be output, regardless of the #title_display or #required values.
|
||
|
|
* This can be useful in cases such as the password_confirm element, which
|
||
|
|
* creates children elements that have their own labels and required markers,
|
||
|
|
* but the parent element should have neither. Use this carefully because a
|
||
|
|
* field without an associated label can cause accessibility challenges.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #title, #title_display, #description, #id, #required,
|
||
|
|
* #children, #type, #name.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_form_element($variables) {
|
||
|
|
$element = &$variables['element'];
|
||
|
|
|
||
|
|
// This function is invoked as theme wrapper, but the rendered form element
|
||
|
|
// may not necessarily have been processed by form_builder().
|
||
|
|
$element += array(
|
||
|
|
'#title_display' => 'before',
|
||
|
|
);
|
||
|
|
|
||
|
|
// Add element #id for #type 'item'.
|
||
|
|
if (isset($element['#markup']) && !empty($element['#id'])) {
|
||
|
|
$attributes['id'] = $element['#id'];
|
||
|
|
}
|
||
|
|
// Add element's #type and #name as class to aid with JS/CSS selectors.
|
||
|
|
$attributes['class'] = array('form-item');
|
||
|
|
if (!empty($element['#type'])) {
|
||
|
|
$attributes['class'][] = 'form-type-' . strtr($element['#type'], '_', '-');
|
||
|
|
}
|
||
|
|
if (!empty($element['#name'])) {
|
||
|
|
$attributes['class'][] = 'form-item-' . strtr($element['#name'], array(' ' => '-', '_' => '-', '[' => '-', ']' => ''));
|
||
|
|
}
|
||
|
|
// Add a class for disabled elements to facilitate cross-browser styling.
|
||
|
|
if (!empty($element['#attributes']['disabled'])) {
|
||
|
|
$attributes['class'][] = 'form-disabled';
|
||
|
|
}
|
||
|
|
$output = '<div' . drupal_attributes($attributes) . '>' . "\n";
|
||
|
|
|
||
|
|
// If #title is not set, we don't display any label or required marker.
|
||
|
|
if (!isset($element['#title'])) {
|
||
|
|
$element['#title_display'] = 'none';
|
||
|
|
}
|
||
|
|
$prefix = isset($element['#field_prefix']) ? '<span class="field-prefix">' . $element['#field_prefix'] . '</span> ' : '';
|
||
|
|
$suffix = isset($element['#field_suffix']) ? ' <span class="field-suffix">' . $element['#field_suffix'] . '</span>' : '';
|
||
|
|
|
||
|
|
switch ($element['#title_display']) {
|
||
|
|
case 'before':
|
||
|
|
case 'invisible':
|
||
|
|
$output .= ' ' . theme('form_element_label', $variables);
|
||
|
|
$output .= ' ' . $prefix . $element['#children'] . $suffix . "\n";
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'after':
|
||
|
|
$output .= ' ' . $prefix . $element['#children'] . $suffix;
|
||
|
|
$output .= ' ' . theme('form_element_label', $variables) . "\n";
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'none':
|
||
|
|
case 'attribute':
|
||
|
|
// Output no label and no required marker, only the children.
|
||
|
|
$output .= ' ' . $prefix . $element['#children'] . $suffix . "\n";
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($element['#description'])) {
|
||
|
|
$output .= '<div class="description">' . $element['#description'] . "</div>\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
$output .= "</div>\n";
|
||
|
|
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a marker for required form elements.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_form_required_marker($variables) {
|
||
|
|
// This is also used in the installer, pre-database setup.
|
||
|
|
$t = get_t();
|
||
|
|
$attributes = array(
|
||
|
|
'class' => 'form-required',
|
||
|
|
'title' => $t('This field is required.'),
|
||
|
|
);
|
||
|
|
return '<span' . drupal_attributes($attributes) . '>*</span>';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns HTML for a form element label and required marker.
|
||
|
|
*
|
||
|
|
* Form element labels include the #title and a #required marker. The label is
|
||
|
|
* associated with the element itself by the element #id. Labels may appear
|
||
|
|
* before or after elements, depending on theme_form_element() and
|
||
|
|
* #title_display.
|
||
|
|
*
|
||
|
|
* This function will not be called for elements with no labels, depending on
|
||
|
|
* #title_display. For elements that have an empty #title and are not required,
|
||
|
|
* this function will output no label (''). For required elements that have an
|
||
|
|
* empty #title, this will output the required marker alone within the label.
|
||
|
|
* The label will use the #id to associate the marker with the field that is
|
||
|
|
* required. That is especially important for screenreader users to know
|
||
|
|
* which field is required.
|
||
|
|
*
|
||
|
|
* To associate the label with a different field, set the #label_for property
|
||
|
|
* to the ID of the desired field.
|
||
|
|
*
|
||
|
|
* @param $variables
|
||
|
|
* An associative array containing:
|
||
|
|
* - element: An associative array containing the properties of the element.
|
||
|
|
* Properties used: #required, #title, #id, #value, #description,
|
||
|
|
* #label_for.
|
||
|
|
*
|
||
|
|
* @ingroup themeable
|
||
|
|
*/
|
||
|
|
function theme_form_element_label($variables) {
|
||
|
|
$element = $variables['element'];
|
||
|
|
// This is also used in the installer, pre-database setup.
|
||
|
|
$t = get_t();
|
||
|
|
|
||
|
|
// If title and required marker are both empty, output no label.
|
||
|
|
if ((!isset($element['#title']) || $element['#title'] === '') && empty($element['#required'])) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the element is required, a required marker is appended to the label.
|
||
|
|
$required = !empty($element['#required']) ? theme('form_required_marker', array('element' => $element)) : '';
|
||
|
|
|
||
|
|
$title = filter_xss_admin($element['#title']);
|
||
|
|
|
||
|
|
$attributes = array();
|
||
|
|
// Style the label as class option to display inline with the element.
|
||
|
|
if ($element['#title_display'] == 'after') {
|
||
|
|
$attributes['class'] = 'option';
|
||
|
|
}
|
||
|
|
// Show label only to screen readers to avoid disruption in visual flows.
|
||
|
|
elseif ($element['#title_display'] == 'invisible') {
|
||
|
|
$attributes['class'] = 'element-invisible';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Use the element's ID as the default value of the "for" attribute (to
|
||
|
|
// associate the label with this form element), but allow this to be
|
||
|
|
// overridden in order to associate the label with a different form element
|
||
|
|
// instead.
|
||
|
|
if (!empty($element['#label_for'])) {
|
||
|
|
$attributes['for'] = $element['#label_for'];
|
||
|
|
}
|
||
|
|
elseif (!empty($element['#id'])) {
|
||
|
|
$attributes['for'] = $element['#id'];
|
||
|
|
}
|
||
|
|
|
||
|
|
// The leading whitespace helps visually separate fields from inline labels.
|
||
|
|
return ' <label' . drupal_attributes($attributes) . '>' . $t('!title !required', array('!title' => $title, '!required' => $required)) . "</label>\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets a form element's class attribute.
|
||
|
|
*
|
||
|
|
* Adds 'required' and 'error' classes as needed.
|
||
|
|
*
|
||
|
|
* @param $element
|
||
|
|
* The form element.
|
||
|
|
* @param $name
|
||
|
|
* Array of new class names to be added.
|
||
|
|
*/
|
||
|
|
function _form_set_class(&$element, $class = array()) {
|
||
|
|
if (!empty($class)) {
|
||
|
|
if (!isset($element['#attributes']['class'])) {
|
||
|
|
$element['#attributes']['class'] = array();
|
||
|
|
}
|
||
|
|
$element['#attributes']['class'] = array_merge($element['#attributes']['class'], $class);
|
||
|
|
}
|
||
|
|
// This function is invoked from form element theme functions, but the
|
||
|
|
// rendered form element may not necessarily have been processed by
|
||
|
|
// form_builder().
|
||
|
|
if (!empty($element['#required'])) {
|
||
|
|
$element['#attributes']['class'][] = 'required';
|
||
|
|
}
|
||
|
|
if (isset($element['#parents']) && form_get_error($element) !== NULL && !empty($element['#validated'])) {
|
||
|
|
$element['#attributes']['class'][] = 'error';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Form element validation handler for integer elements.
|
||
|
|
*/
|
||
|
|
function element_validate_integer($element, &$form_state) {
|
||
|
|
$value = $element['#value'];
|
||
|
|
if ($value !== '' && (!is_numeric($value) || intval($value) != $value)) {
|
||
|
|
form_error($element, t('%name must be an integer.', array('%name' => $element['#title'])));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Form element validation handler for integer elements that must be positive.
|
||
|
|
*/
|
||
|
|
function element_validate_integer_positive($element, &$form_state) {
|
||
|
|
$value = $element['#value'];
|
||
|
|
if ($value !== '' && (!is_numeric($value) || intval($value) != $value || $value <= 0)) {
|
||
|
|
form_error($element, t('%name must be a positive integer.', array('%name' => $element['#title'])));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Form element validation handler for number elements.
|
||
|
|
*/
|
||
|
|
function element_validate_number($element, &$form_state) {
|
||
|
|
$value = $element['#value'];
|
||
|
|
if ($value != '' && !is_numeric($value)) {
|
||
|
|
form_error($element, t('%name must be a number.', array('%name' => $element['#title'])));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @} End of "defgroup form_api".
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @defgroup batch Batch operations
|
||
|
|
* @{
|
||
|
|
* Creates and processes batch operations.
|
||
|
|
*
|
||
|
|
* Functions allowing forms processing to be spread out over several page
|
||
|
|
* requests, thus ensuring that the processing does not get interrupted
|
||
|
|
* because of a PHP timeout, while allowing the user to receive feedback
|
||
|
|
* on the progress of the ongoing operations.
|
||
|
|
*
|
||
|
|
* The API is primarily designed to integrate nicely with the Form API
|
||
|
|
* workflow, but can also be used by non-Form API scripts (like update.php)
|
||
|
|
* or even simple page callbacks (which should probably be used sparingly).
|
||
|
|
*
|
||
|
|
* Example:
|
||
|
|
* @code
|
||
|
|
* $batch = array(
|
||
|
|
* 'title' => t('Exporting'),
|
||
|
|
* 'operations' => array(
|
||
|
|
* array('my_function_1', array($account->uid, 'story')),
|
||
|
|
* array('my_function_2', array()),
|
||
|
|
* ),
|
||
|
|
* 'finished' => 'my_finished_callback',
|
||
|
|
* 'file' => 'path_to_file_containing_myfunctions',
|
||
|
|
* );
|
||
|
|
* batch_set($batch);
|
||
|
|
* // Only needed if not inside a form _submit handler.
|
||
|
|
* // Setting redirect in batch_process.
|
||
|
|
* batch_process('node/1');
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* Note: if the batch 'title', 'init_message', 'progress_message', or
|
||
|
|
* 'error_message' could contain any user input, it is the responsibility of
|
||
|
|
* the code calling batch_set() to sanitize them first with a function like
|
||
|
|
* check_plain() or filter_xss(). Furthermore, if the batch operation
|
||
|
|
* returns any user input in the 'results' or 'message' keys of $context,
|
||
|
|
* it must also sanitize them first.
|
||
|
|
*
|
||
|
|
* Sample callback_batch_operation():
|
||
|
|
* @code
|
||
|
|
* // Simple and artificial: load a node of a given type for a given user
|
||
|
|
* function my_function_1($uid, $type, &$context) {
|
||
|
|
* // The $context array gathers batch context information about the execution (read),
|
||
|
|
* // as well as 'return values' for the current operation (write)
|
||
|
|
* // The following keys are provided :
|
||
|
|
* // 'results' (read / write): The array of results gathered so far by
|
||
|
|
* // the batch processing, for the current operation to append its own.
|
||
|
|
* // 'message' (write): A text message displayed in the progress page.
|
||
|
|
* // The following keys allow for multi-step operations :
|
||
|
|
* // 'sandbox' (read / write): An array that can be freely used to
|
||
|
|
* // store persistent data between iterations. It is recommended to
|
||
|
|
* // use this instead of $_SESSION, which is unsafe if the user
|
||
|
|
* // continues browsing in a separate window while the batch is processing.
|
||
|
|
* // 'finished' (write): A float number between 0 and 1 informing
|
||
|
|
* // the processing engine of the completion level for the operation.
|
||
|
|
* // 1 (or no value explicitly set) means the operation is finished
|
||
|
|
* // and the batch processing can continue to the next operation.
|
||
|
|
*
|
||
|
|
* $node = node_load(array('uid' => $uid, 'type' => $type));
|
||
|
|
* $context['results'][] = $node->nid . ' : ' . check_plain($node->title);
|
||
|
|
* $context['message'] = check_plain($node->title);
|
||
|
|
* }
|
||
|
|
*
|
||
|
|
* // More advanced example: multi-step operation - load all nodes, five by five
|
||
|
|
* function my_function_2(&$context) {
|
||
|
|
* if (empty($context['sandbox'])) {
|
||
|
|
* $context['sandbox']['progress'] = 0;
|
||
|
|
* $context['sandbox']['current_node'] = 0;
|
||
|
|
* $context['sandbox']['max'] = db_query('SELECT COUNT(DISTINCT nid) FROM {node}')->fetchField();
|
||
|
|
* }
|
||
|
|
* $limit = 5;
|
||
|
|
* $result = db_select('node')
|
||
|
|
* ->fields('node', array('nid'))
|
||
|
|
* ->condition('nid', $context['sandbox']['current_node'], '>')
|
||
|
|
* ->orderBy('nid')
|
||
|
|
* ->range(0, $limit)
|
||
|
|
* ->execute();
|
||
|
|
* foreach ($result as $row) {
|
||
|
|
* $node = node_load($row->nid, NULL, TRUE);
|
||
|
|
* $context['results'][] = $node->nid . ' : ' . check_plain($node->title);
|
||
|
|
* $context['sandbox']['progress']++;
|
||
|
|
* $context['sandbox']['current_node'] = $node->nid;
|
||
|
|
* $context['message'] = check_plain($node->title);
|
||
|
|
* }
|
||
|
|
* if ($context['sandbox']['progress'] != $context['sandbox']['max']) {
|
||
|
|
* $context['finished'] = $context['sandbox']['progress'] / $context['sandbox']['max'];
|
||
|
|
* }
|
||
|
|
* }
|
||
|
|
* @endcode
|
||
|
|
*
|
||
|
|
* Sample callback_batch_finished():
|
||
|
|
* @code
|
||
|
|
* function my_finished_callback($success, $results, $operations) {
|
||
|
|
* // The 'success' parameter means no fatal PHP errors were detected. All
|
||
|
|
* // other error management should be handled using 'results'.
|
||
|
|
* if ($success) {
|
||
|
|
* $message = format_plural(count($results), 'One post processed.', '@count posts processed.');
|
||
|
|
* }
|
||
|
|
* else {
|
||
|
|
* $message = t('Finished with an error.');
|
||
|
|
* }
|
||
|
|
* drupal_set_message($message);
|
||
|
|
* // Providing data for the redirected page is done through $_SESSION.
|
||
|
|
* foreach ($results as $result) {
|
||
|
|
* $items[] = t('Loaded node %title.', array('%title' => $result));
|
||
|
|
* }
|
||
|
|
* $_SESSION['my_batch_results'] = $items;
|
||
|
|
* }
|
||
|
|
* @endcode
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds a new batch.
|
||
|
|
*
|
||
|
|
* Batch operations are added as new batch sets. Batch sets are used to spread
|
||
|
|
* processing (primarily, but not exclusively, forms processing) over several
|
||
|
|
* page requests. This helps to ensure that the processing is not interrupted
|
||
|
|
* due to PHP timeouts, while users are still able to receive feedback on the
|
||
|
|
* progress of the ongoing operations. Combining related operations into
|
||
|
|
* distinct batch sets provides clean code independence for each batch set,
|
||
|
|
* ensuring that two or more batches, submitted independently, can be processed
|
||
|
|
* without mutual interference. Each batch set may specify its own set of
|
||
|
|
* operations and results, produce its own UI messages, and trigger its own
|
||
|
|
* 'finished' callback. Batch sets are processed sequentially, with the progress
|
||
|
|
* bar starting afresh for each new set.
|
||
|
|
*
|
||
|
|
* @param $batch_definition
|
||
|
|
* An associative array defining the batch, with the following elements (all
|
||
|
|
* are optional except as noted):
|
||
|
|
* - operations: (required) Array of operations to be performed, where each
|
||
|
|
* item is an array consisting of the name of an implementation of
|
||
|
|
* callback_batch_operation() and an array of parameter.
|
||
|
|
* Example:
|
||
|
|
* @code
|
||
|
|
* array(
|
||
|
|
* array('callback_batch_operation_1', array($arg1)),
|
||
|
|
* array('callback_batch_operation_2', array($arg2_1, $arg2_2)),
|
||
|
|
* )
|
||
|
|
* @endcode
|
||
|
|
* - title: A safe, translated string to use as the title for the progress
|
||
|
|
* page. Defaults to t('Processing').
|
||
|
|
* - init_message: Message displayed while the processing is initialized.
|
||
|
|
* Defaults to t('Initializing.').
|
||
|
|
* - progress_message: Message displayed while processing the batch. Available
|
||
|
|
* placeholders are @current, @remaining, @total, @percentage, @estimate and
|
||
|
|
* @elapsed. Defaults to t('Completed @current of @total.').
|
||
|
|
* - error_message: Message displayed if an error occurred while processing
|
||
|
|
* the batch. Defaults to t('An error has occurred.').
|
||
|
|
* - finished: Name of an implementation of callback_batch_finished(). This is
|
||
|
|
* executed after the batch has completed. This should be used to perform
|
||
|
|
* any result massaging that may be needed, and possibly save data in
|
||
|
|
* $_SESSION for display after final page redirection.
|
||
|
|
* - file: Path to the file containing the definitions of the 'operations' and
|
||
|
|
* 'finished' functions, for instance if they don't reside in the main
|
||
|
|
* .module file. The path should be relative to base_path(), and thus should
|
||
|
|
* be built using drupal_get_path().
|
||
|
|
* - css: Array of paths to CSS files to be used on the progress page.
|
||
|
|
* - url_options: options passed to url() when constructing redirect URLs for
|
||
|
|
* the batch.
|
||
|
|
*/
|
||
|
|
function batch_set($batch_definition) {
|
||
|
|
if ($batch_definition) {
|
||
|
|
$batch =& batch_get();
|
||
|
|
|
||
|
|
// Initialize the batch if needed.
|
||
|
|
if (empty($batch)) {
|
||
|
|
$batch = array(
|
||
|
|
'sets' => array(),
|
||
|
|
'has_form_submits' => FALSE,
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Base and default properties for the batch set.
|
||
|
|
// Use get_t() to allow batches during installation.
|
||
|
|
$t = get_t();
|
||
|
|
$init = array(
|
||
|
|
'sandbox' => array(),
|
||
|
|
'results' => array(),
|
||
|
|
'success' => FALSE,
|
||
|
|
'start' => 0,
|
||
|
|
'elapsed' => 0,
|
||
|
|
);
|
||
|
|
$defaults = array(
|
||
|
|
'title' => $t('Processing'),
|
||
|
|
'init_message' => $t('Initializing.'),
|
||
|
|
'progress_message' => $t('Completed @current of @total.'),
|
||
|
|
'error_message' => $t('An error has occurred.'),
|
||
|
|
'css' => array(),
|
||
|
|
);
|
||
|
|
$batch_set = $init + $batch_definition + $defaults;
|
||
|
|
|
||
|
|
// Tweak init_message to avoid the bottom of the page flickering down after
|
||
|
|
// init phase.
|
||
|
|
$batch_set['init_message'] .= '<br/> ';
|
||
|
|
|
||
|
|
// The non-concurrent workflow of batch execution allows us to save
|
||
|
|
// numberOfItems() queries by handling our own counter.
|
||
|
|
$batch_set['total'] = count($batch_set['operations']);
|
||
|
|
$batch_set['count'] = $batch_set['total'];
|
||
|
|
|
||
|
|
// Add the set to the batch.
|
||
|
|
if (empty($batch['id'])) {
|
||
|
|
// The batch is not running yet. Simply add the new set.
|
||
|
|
$batch['sets'][] = $batch_set;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// The set is being added while the batch is running. Insert the new set
|
||
|
|
// right after the current one to ensure execution order, and store its
|
||
|
|
// operations in a queue.
|
||
|
|
$index = $batch['current_set'] + 1;
|
||
|
|
$slice1 = array_slice($batch['sets'], 0, $index);
|
||
|
|
$slice2 = array_slice($batch['sets'], $index);
|
||
|
|
$batch['sets'] = array_merge($slice1, array($batch_set), $slice2);
|
||
|
|
_batch_populate_queue($batch, $index);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Processes the batch.
|
||
|
|
*
|
||
|
|
* Unless the batch has been marked with 'progressive' = FALSE, the function
|
||
|
|
* issues a drupal_goto and thus ends page execution.
|
||
|
|
*
|
||
|
|
* This function is generally not needed in form submit handlers;
|
||
|
|
* Form API takes care of batches that were set during form submission.
|
||
|
|
*
|
||
|
|
* @param $redirect
|
||
|
|
* (optional) Path to redirect to when the batch has finished processing.
|
||
|
|
* @param $url
|
||
|
|
* (optional - should only be used for separate scripts like update.php)
|
||
|
|
* URL of the batch processing page.
|
||
|
|
* @param $redirect_callback
|
||
|
|
* (optional) Specify a function to be called to redirect to the progressive
|
||
|
|
* processing page. By default drupal_goto() will be used to redirect to a
|
||
|
|
* page which will do the progressive page. Specifying another function will
|
||
|
|
* allow the progressive processing to be processed differently.
|
||
|
|
*/
|
||
|
|
function batch_process($redirect = NULL, $url = 'batch', $redirect_callback = 'drupal_goto') {
|
||
|
|
$batch =& batch_get();
|
||
|
|
|
||
|
|
drupal_theme_initialize();
|
||
|
|
|
||
|
|
if (isset($batch)) {
|
||
|
|
// Add process information
|
||
|
|
$process_info = array(
|
||
|
|
'current_set' => 0,
|
||
|
|
'progressive' => TRUE,
|
||
|
|
'url' => $url,
|
||
|
|
'url_options' => array(),
|
||
|
|
'source_url' => $_GET['q'],
|
||
|
|
'redirect' => $redirect,
|
||
|
|
'theme' => $GLOBALS['theme_key'],
|
||
|
|
'redirect_callback' => $redirect_callback,
|
||
|
|
);
|
||
|
|
$batch += $process_info;
|
||
|
|
|
||
|
|
// The batch is now completely built. Allow other modules to make changes
|
||
|
|
// to the batch so that it is easier to reuse batch processes in other
|
||
|
|
// environments.
|
||
|
|
drupal_alter('batch', $batch);
|
||
|
|
|
||
|
|
// Assign an arbitrary id: don't rely on a serial column in the 'batch'
|
||
|
|
// table, since non-progressive batches skip database storage completely.
|
||
|
|
$batch['id'] = db_next_id();
|
||
|
|
|
||
|
|
// Move operations to a job queue. Non-progressive batches will use a
|
||
|
|
// memory-based queue.
|
||
|
|
foreach ($batch['sets'] as $key => $batch_set) {
|
||
|
|
_batch_populate_queue($batch, $key);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Initiate processing.
|
||
|
|
if ($batch['progressive']) {
|
||
|
|
// Now that we have a batch id, we can generate the redirection link in
|
||
|
|
// the generic error message.
|
||
|
|
$t = get_t();
|
||
|
|
$batch['error_message'] = $t('Please continue to <a href="@error_url">the error page</a>', array('@error_url' => url($url, array('query' => array('id' => $batch['id'], 'op' => 'finished')))));
|
||
|
|
|
||
|
|
// Clear the way for the drupal_goto() redirection to the batch processing
|
||
|
|
// page, by saving and unsetting the 'destination', if there is any.
|
||
|
|
if (isset($_GET['destination'])) {
|
||
|
|
$batch['destination'] = $_GET['destination'];
|
||
|
|
unset($_GET['destination']);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Store the batch.
|
||
|
|
db_insert('batch')
|
||
|
|
->fields(array(
|
||
|
|
'bid' => $batch['id'],
|
||
|
|
'timestamp' => REQUEST_TIME,
|
||
|
|
'token' => drupal_get_token($batch['id']),
|
||
|
|
'batch' => serialize($batch),
|
||
|
|
))
|
||
|
|
->execute();
|
||
|
|
|
||
|
|
// Set the batch number in the session to guarantee that it will stay alive.
|
||
|
|
$_SESSION['batches'][$batch['id']] = TRUE;
|
||
|
|
|
||
|
|
// Redirect for processing.
|
||
|
|
$function = $batch['redirect_callback'];
|
||
|
|
if (function_exists($function)) {
|
||
|
|
$function($batch['url'], array('query' => array('op' => 'start', 'id' => $batch['id'])));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Non-progressive execution: bypass the whole progressbar workflow
|
||
|
|
// and execute the batch in one pass.
|
||
|
|
require_once DRUPAL_ROOT . '/includes/batch.inc';
|
||
|
|
_batch_process();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieves the current batch.
|
||
|
|
*/
|
||
|
|
function &batch_get() {
|
||
|
|
// Not drupal_static(), because Batch API operates at a lower level than most
|
||
|
|
// use-cases for resetting static variables, and we specifically do not want a
|
||
|
|
// global drupal_static_reset() resetting the batch information. Functions
|
||
|
|
// that are part of the Batch API and need to reset the batch information may
|
||
|
|
// call batch_get() and manipulate the result by reference. Functions that are
|
||
|
|
// not part of the Batch API can also do this, but shouldn't.
|
||
|
|
static $batch = array();
|
||
|
|
return $batch;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Populates a job queue with the operations of a batch set.
|
||
|
|
*
|
||
|
|
* Depending on whether the batch is progressive or not, the BatchQueue or
|
||
|
|
* BatchMemoryQueue handler classes will be used.
|
||
|
|
*
|
||
|
|
* @param $batch
|
||
|
|
* The batch array.
|
||
|
|
* @param $set_id
|
||
|
|
* The id of the set to process.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The name and class of the queue are added by reference to the batch set.
|
||
|
|
*/
|
||
|
|
function _batch_populate_queue(&$batch, $set_id) {
|
||
|
|
$batch_set = &$batch['sets'][$set_id];
|
||
|
|
|
||
|
|
if (isset($batch_set['operations'])) {
|
||
|
|
$batch_set += array(
|
||
|
|
'queue' => array(
|
||
|
|
'name' => 'drupal_batch:' . $batch['id'] . ':' . $set_id,
|
||
|
|
'class' => $batch['progressive'] ? 'BatchQueue' : 'BatchMemoryQueue',
|
||
|
|
),
|
||
|
|
);
|
||
|
|
|
||
|
|
$queue = _batch_queue($batch_set);
|
||
|
|
$queue->createQueue();
|
||
|
|
foreach ($batch_set['operations'] as $operation) {
|
||
|
|
$queue->createItem($operation);
|
||
|
|
}
|
||
|
|
|
||
|
|
unset($batch_set['operations']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns a queue object for a batch set.
|
||
|
|
*
|
||
|
|
* @param $batch_set
|
||
|
|
* The batch set.
|
||
|
|
*
|
||
|
|
* @return
|
||
|
|
* The queue object.
|
||
|
|
*/
|
||
|
|
function _batch_queue($batch_set) {
|
||
|
|
static $queues;
|
||
|
|
|
||
|
|
// The class autoloader is not available when running update.php, so make
|
||
|
|
// sure the files are manually included.
|
||
|
|
if (!isset($queues)) {
|
||
|
|
$queues = array();
|
||
|
|
require_once DRUPAL_ROOT . '/modules/system/system.queue.inc';
|
||
|
|
require_once DRUPAL_ROOT . '/includes/batch.queue.inc';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isset($batch_set['queue'])) {
|
||
|
|
$name = $batch_set['queue']['name'];
|
||
|
|
$class = $batch_set['queue']['class'];
|
||
|
|
|
||
|
|
if (!isset($queues[$class][$name])) {
|
||
|
|
$queues[$class][$name] = new $class($name);
|
||
|
|
}
|
||
|
|
return $queues[$class][$name];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @} End of "defgroup batch".
|
||
|
|
*/
|