Moodle 3.x Developer's Guide

Plugin library callbacks

The next step is to create a new file, /lib.php, which will contain the plugin's library callback functions:

Each function in this script will be prefixed with the name of the module wavefront_. For example, the wavefront_supports()function is called by the module framework to determine what features our wavefront renderer provides:

function wavefront_supports($feature){      switch($feature)      {            case FEATURE_MOD_ARCHETYPE:               return MOD_ARCHETYPE_RESOURCE;            case FEATURE_GROUPS:               return false;            case FEATURE_GROUPINGS:               return false;            case FEATURE_MOD_INTRO:               return true;            case FEATURE_COMPLETION_TRACKS_VIEWS:               return true; case FEATURE_GRADE_HAS_GRADE: ...