OPEN cur;

        REPEAT

            FETCH cur INTO int_type, int_element_id, int_num, int_user_id;

            IF NOT _DONE THEN

                IF int_type =  THEN 

                    SET int_num_raw = ;

                    SELECT num INTO int_num_raw FROM  user_item WHERE user_id = int_user_id AND item_id = int_element_id;

                    SET _DONE = 0;

                    IF int_num_raw < int_item_max_overlap THEN

                        IF int_num_raw + int_num > int_item_max_overlap THEN

                            SET int_num = int_item_max_overlap - int_num_raw;

                        END IF;

                        INSERT INTO user_item SET user_id = int_user_id, item_id = int_element_id, num = int_num ON DUPLICATE KEY UPDATE num = num + int_num;

                    END IF;

                ELSEIF int_type =  THEN

                    UPDATE `user` SET `exp` = `exp` + int_num WHERE `user_id` = int_user_id;

                ELSEIF int_type =  THEN

                    UPDATE `user` SET `gold` = `gold` + int_num WHERE `user_id` = int_user_id;

                ELSEIF int_type =  THEN

                    UPDATE `user` SET `diamond` = `diamond` + int_num WHERE `user_id` = int_user_id;

                ELSEIF int_type =  THEN

                    UPDATE `user` SET `health_cur` = `health_cur` + int_num WHERE `user_id` = int_user_id;

                END IF;

            END IF;

        UNTIL _DONE  END REPEAT;

    CLOSE cur;