50 lines
1.2 KiB
Markdown
50 lines
1.2 KiB
Markdown
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Definitively slay the mythology that module-making is a mystic domain of Drupal druids.
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https://api.drupal.org/api/drupal/core%21core.api.php/group/extending/
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https://api.drupal.org/api/drupal/core!core.api.php/group/hooks/
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Use Git: don't be afraid to change things.
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Use a debugger.
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### Hooks work by naming convention.
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To implement a hook, take the 'hook' part off the hook name and replace it with your module's (machine) name.
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### When to Contribute?
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When your module fills a need larger than your precise use case.
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Note: If you just want to build a module, finding a module idea that one or more people have been asking for is a good way to meet a need and avoid duplication.
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See also http://groups.drupal.org/
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contributed-module-ideas
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### Finding a Drupal Function that Does What You Need
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* Identify a page that produces output like what you want to see.
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* Look up the page callback function for that page's menu item.
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* See what functions are used (or database queries made) in the page callback function.
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`grep -nHR --include=*.module 'admin/appearance' modules`
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### Error messages mean progress!
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`Parse error: syntax error, unexpected ';', expecting ')'`
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You are having an effect on the world. Or at least your local site.
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