_table = 'home_class'; $this->_pk = 'classid'; parent::__construct(); } public function fetch_all_by_uid($uid) { return DB::fetch_all('SELECT * FROM %t WHERE uid = %d', array($this->_table, $uid), $this->_pk); } public function fetch_classid_by_uid_classname($uid, $classname) { return DB::result_first('SELECT classid FROM %t WHERE uid = %d AND classname = %s', array($this->_table, $uid, $classname)); } public function delete_by_uid($uids) { if(!$uids) { return null; } return DB::delete($this->_table, DB::field('uid', $uids)); } } ?>