/** * Returns an array containing, for each field, the arary key used for that * field in self::$_fields. * * @return array */ static function &fieldKeys() { if (!self::$_fieldKeys) { self::$_fieldKeys = array('id' => 'id', 'option_group_id' => 'option_group_id', 'label' => 'label', 'value' => 'value', 'name' => 'name', 'grouping' => 'grouping', 'filter' => 'filter', 'is_default' => 'is_default', 'weight' => 'weight', 'description' => 'description', 'is_optgroup' => 'is_optgroup', 'is_reserved' => 'is_reserved', 'is_active' => 'is_active', 'component_id' => 'component_id', 'domain_id' => 'domain_id', 'visibility_id' => 'visibility_id'); } return self::$_fieldKeys; }