/** * 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::$_fieldKeys = array('id' => 'id', 'premiums_id' => 'premiums_id', 'product_id' => 'product_id', 'weight' => 'weight', 'financial_type_id' => 'financial_type_id'); } return self::$_fieldKeys; }