Development:How to create a YUI 3 module

This document explain how to create a YUI 3 module in Moodle.

The two ways to write a YUI 3 module

• create a static module like /rating/module.js. It is the easiest and quickest way. You choose this way because...
• create a flexible and extendable module like /mod/glossary/yui/autolinker/autolinker.js. It is the hard way. You choose this way because...

The static module

1. Create a module.js file somewhere
2. The two way Moodle can load this file are:

1. 1. the file is in core: declare the file into /lib/outputrequirementslib.php/find_module($component)

         //example:
         case 'core_rating':
                   $module = array('name'     => 'core_rating',
                                   'fullpath' => '/rating/module.js',
                                   'requires' => array('node', 'event', 'overlay', 'io', 'json'));

1. 1. the file is in a local plugin: the first line of your module should be

M.local_xxx = {

xxx being your plugin directory name.

1. Write a first module

 M.local_hub={

   Y : null,
   transaction : [],

   init : function(Y){
       alert('hub module initialisation');
       this.Y = Y;
   },
 }

1. Call your first modul. It is better if it's in a php renderer script

   $this->page->requires->js_init_call('M.local_hub.init'); //or $PAGE->requires->... if it's in not in a renderer