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