/** * 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::$_fieldKeys = array('id' => 'id', 'contact_id' => 'contact_id', 'acl_id' => 'acl_id', 'modified_date' => 'modified_date'); } return self::$_fieldKeys; }