103 lines
3.3 KiB
Text
103 lines
3.3 KiB
Text
<?php
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/**
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* Implements hook_ENTITY_TYPE_update() for Drutopia article content.
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*/
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function geo_citation_article_update(Drupal\Core\Entity\EntityInterface $entity)
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{
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$article_type = $entity->field_article_type->getValue();
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// If it's not a GEO Original article, there's nothing for us to do.
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if (!$article_type == 6) {
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return;
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}
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}
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/**
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* Implements hook_entity_extra_field_info().
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*/
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function geo_citation_entity_extra_field_info() {
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$extra = [];
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$extra['node']['article']['display']['geo_citation'] = [
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'label' => t('GEO Citation'),
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'description' => t('Re-presents title, author, date and other information in a standard citeable format.'),
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'weight' => 90,
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];
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return $extra;
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}
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/**
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* Implements hook_ENTITY_TYPE_view() for nodes.
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*/
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function geo_citation_node_view(array &$build, \Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, $view_mode) {
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// This will only exist for the Drutopia article content type but don't think we need to check first.
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if ($display->getComponent('geo_citation')) {
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$build['geo_citation'] = [
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'#markup' => geo_citation_pseudo_field($entity),
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// '#theme' => 'geo_citation_field',
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];
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}
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}
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/**
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* Implements hook_theme().
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*
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* We intentionally choose to do the citation in one big lump, because our
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* expectation for making this more flexible would be to plug into bibcite or
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* other citation API, rather than making it easy to re-theme this custom data.
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*
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function geo_citation_theme($existing, $type, $theme, $path) {
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return [
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'geo_citation_field' => [
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'variables' => [
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'citation' => '',
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]
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]
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]
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}
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* ...and it turns out giving theming capability to our pseudofield is optional.
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*/
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/**
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* Assemble and return our citation as already-marked-up HTML.
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*/
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function geo_citation_pseudo_field($entity) {
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$markup = '';
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// This returns a numerically-indexed array of arrays with little in them
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// except the taxonomy term 'target_id' as a stringified number.
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$article_types = $entity->field_article_type->getValue();
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// This looks for the index matching 'GEO Original' (term ID 303), which will
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// often be zero when it's the only selected article type, so we must be sure
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// to test for a false identity and not accidentally reject zero.
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if (array_search('303', array_column($article_types, 'target_id')) === FALSE) {
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// If it's not a GEO Original article, we do not add a citation.
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return $markup;
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}
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$authors = $entity->field_authors->entity->title->value;
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$date = $entity->field_publication_date->value;
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$year = substr($date, 0, 4);
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$title = $entity->title->value;
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$subtitle = $entity->field_subtitle->value;
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$url = $entity->toUrl()->setAbsolute()->toString();
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$markup .= '<div class="geo-citation">';
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$tooltip = t("When citing this article, please use the following format:");
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$markup .= '<h4 class="title is-4"><abbr title="' . $tooltip . '">' . t("Citations") . '</abbr></h4>';
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$markup .= '<p>';
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$markup .= "$authors ($year).  $title";
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if ($subtitle) {
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$markup .= ":  $subtitle";
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}
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$markup .= ".  ";
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$markup .= t("Grassroots Economic Organizing (GEO).");
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$markup .= "  <a href='$url'>$url</a>'";
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$markup .= '</p>';
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$markup .= '</div>';
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return $markup;
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}
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