/** * Returns an array containing, for each field, the arary key used for that * field in self::$_fields. * * @access public * @return array */ static function &fieldKeys() { if (!self::$_fieldKeys) { self::$_fieldKeys = array('id' => 'id', 'booking_id' => 'booking_id', 'resource_id' => 'resource_id', 'config_id' => 'config_id', 'start' => 'start', 'end' => 'end', 'quantity' => 'quantity', 'note' => 'note', 'is_cancelled' => 'is_cancelled', 'is_deleted' => 'is_deleted'); } return self::$_fieldKeys; }