_table = 'common_statuser'; $this->_pk = ''; parent::__construct(); } public function check_exists($uid, $daytime, $type) { $setarr = array( 'uid' => intval($uid), 'daytime' => intval($daytime), 'type' => $type ); if(DB::result_first('SELECT COUNT(*) FROM '.DB::table($this->_table).' WHERE '.DB::implode_field_value($setarr, ' AND '))) { return true; } else { return false; } } public function clear_by_daytime($daytime) { $daytime = intval($daytime); DB::delete('common_statuser', "`daytime` != '$daytime'"); } } ?>