'SloodleModuleChat', 'distributor'=>'SloodleModuleDistributor', ...} global $SLOODLE_MODULE_CLASS; $SLOODLE_MODULE_CLASS = array(); // Go through each declared class $allclasses = get_declared_classes(); foreach ($allclasses as $c) { // Is this class a subclass of the Sloodle Module type? if (strcasecmp(get_parent_class($c), 'SloodleModule') == 0) { // Fetch the type name $curtype = call_user_func(array($c, 'get_type')); if (!empty($curtype)) { // Add it to our array with its type $SLOODLE_MODULE_CLASS[$curtype] = $c; } } } ///////////////////////////////////////////////////////////////////////// /* Static method to return a list of available module types => module names. Avoids having to use the global variable elsewhere. */ function sloodle_available_modules() { global $SLOODLE_MODULE_CLASS; return $SLOODLE_MODULE_CLASS; } /** * Constructs a appropriate Sloodle module object based on the named type. * @param string $type The type of module to construct - typically a short name, such as 'chat' or 'blog' * @param SloodleSession &$_session The {@link SloodleSession} object to pass to the module on construction, or just null * @param mixed $id The identifier of the module instance to load from the database (or null if there is no module data) * @return SloodleModule|bool Returns the cosntructed module object, or false if it fails */ function sloodle_load_module($type, &$_session, $id = null) { global $SLOODLE_MODULE_CLASS; // Abort if the type is not recognised if (!array_key_exists($type, $SLOODLE_MODULE_CLASS)) { sloodle_debug("Module load failed - type \"$type\" not recognised.
"); return false; } // Construct the object, based on the class name in our array $module = new $SLOODLE_MODULE_CLASS[$type]($_session); // Load the data from the database, if necessary if ($id != null) { if ($module->load((int)$id)) return $module; sloodle_debug("Failed to load module data from database with ID $id.
"); return false; } // Everything seems OK return $module; } /** * Constructs and loads an appropriate SLOODLE module object, based on the 'sloodle' record (that is, the instance or instance ID). * The appropriate type is detected from the instance data. * The object is provided with a dummy SloodleSession object. * @param int|object $instance Either an integer instance ID, or a record from the 'sloodle' table. * @return SloodleModule|bool Returns the constructed module object, or false if it fails. */ function sloodle_quick_load_module_from_instance($instance) { // Get an instance record if necessary if (is_numeric($instance)) { $instance = sloodle_get_record('sloodle', 'id', (int)$instance); if ($instance === false) return false; } // Attempt to get the course module ID $cm = get_coursemodule_from_instance('sloodle', $instance->id); if ($cm === false) return false; // Attempt to load the module $dummysession = new SloodleSession(false); return sloodle_load_module($instance->type, $dummysession, (int)$cm->id); } /** * Constructs and loads an appropriate SLOODLE module object, based on the course module or course module ID. * The appropriate type is detected automatically. * The object is provided with a dummy SloodleSession object. * @param int|object $cm Either an integer course module ID, or a course module record. * @return SloodleModule|bool Returns the constructed module object, or false if it fails. */ function sloodle_quick_load_module_from_cm($cm) { // Obtain a course module object if necessary if (is_numeric($cm)) { $cm = get_coursemodule_from_id('sloodle', $cm); if ($cm === false) return false; } // Get an instance record $instance = sloodle_get_record('sloodle', 'id', (int)$cm->instance); if ($instance === false) return false; // Attempt to load the module $dummysession = new SloodleSession(false); return sloodle_load_module($instance->type, $dummysession, (int)$cm->id); }