MySQL create FUNCTION into Store Procedure - mysql

Question

in my store procedure i want to have simple function to return value. i want to have this Sql command to function ( thats duplicate action in my procedure):
/*************************************************/
CREATE FUNCTION getDelay( INT id(11) )
SET #v_is_new := (SELECT COUNT(id) from `tsms_entry_exit` WHERE DATE_FORMAT(`datetime_in`, '%Y-%m-%d') = CURDATE() );
IF #v_is_new IS NULL THEN
SET #v_delay := SEC_TO_TIME (TIME_TO_SEC(_datetime_in) - TIME_TO_SEC(#v_user_start_time)) ;
ELSE
SET #v_delay :=0;
END IF;
RETURN #v_delay;
/*************************************************/
i want to have that function into below store procedure how to have this action??
CREATE DEFINER=`root`#`localhost` PROCEDURE `tsmsp_post_entry_exit`(IN `_id` INT(11), IN `_user_id` INT(5), IN `_datetime_in` DATETIME, IN `_datetime_out` DATETIME)
NO SQL
BEGIN
DECLARE v_user_start_time INT UNSIGNED;
DECLARE v_delay INT(11);
DECLARE v_pyear INT UNSIGNED;
DECLARE v_mounth INT UNSIGNED;
SET #v_pyear = pyear ( _datetime_in ) ;
SET #v_mounth = pmonth( _datetime_in );
SET #v_user_start_time := (SELECT `start_time` FROM `tsms_range_time` WHERE `user_id` = _user_id);
IF _id IS NULL THEN
/* Check for first record today for calculate Delay*/
SET #v_is_new := (SELECT COUNT(id) from `tsms_entry_exit` WHERE DATE_FORMAT(`datetime_in`, '%Y-%m-%d') = CURDATE() );
/* calculate USER delay */
IF #v_is_new IS NULL THEN
SET #v_delay := SEC_TO_TIME (TIME_TO_SEC(_datetime_in) - TIME_TO_SEC(#v_user_start_time)) ;
ELSE
SET #v_delay :=0;
END IF;
INSERT INTO `tsms_entry_exit`
(
`user_id`,
`datetime_in`,
`datetime_out`,
`delay`,
`period`
)
VALUES
(
_user_id,
_datetime_in,
_datetime_out,
#v_delay,
CONCAT(#v_pyear, #v_mounth)
);
SELECT ROW_COUNT() AS 'Affected rows';
ELSE
BEGIN
/* Check for first record today for calculate Delay*/
SET #v_is_new := (SELECT COUNT(id) from `tsms_entry_exit` WHERE DATE_FORMAT(`datetime_in`, '%Y-%m-%d') = CURDATE() );
/* calculate USER delay */
IF #v_is_new IS NULL THEN
SET #v_delay := SEC_TO_TIME (TIME_TO_SEC(_datetime_in) - TIME_TO_SEC(#v_user_start_time)) ;
ELSE
SET #v_delay :=0;
END IF;
UPDATE `tsms_entry_exit` SET
`user_id`= _user_id,
`datetime_in` = _datetime_in,
`datetime_out`=_datetime_out,
`delay`=_delay,
`period`=_period
WHERE `id` = _id;
SELECT ROW_COUNT() AS 'Affected Update rows';
END;
END IF;
END

Answer 1

You can't define the function inside procedure but you can call the function though. A simplest example would be like below.
Create your function
DELIMITER $$
CREATE FUNCTION getDelay(id int)
returns int
begin
SET #v_is_new := (SELECT COUNT(id) from `tsms_entry_exit`
WHERE DATE_FORMAT(`datetime_in`, '%Y-%m-%d') = CURDATE() );
IF(#v_is_new IS NULL) THEN
SET #v_delay := SEC_TO_TIME (TIME_TO_SEC(_datetime_in) - TIME_TO_SEC(#v_user_start_time)) ;
ELSE
SET #v_delay :=0;
END IF;
RETURN #v_delay;
end $$
DELIMITER ;
Then call the above defined function in your procedure
DELIMITER $$
CREATE PROCEDURE `tsmsp_post_entry_exit`(IN `_id` INT)
BEGIN
DECLARE v_delay INT;
IF _id IS NULL
THEN
select #v_delay := getDelay(_id); <-- Calling Here
END IF;
END $$
DELIMITER ;