mysqli signal to php error - php

Question

I have Mysql stored procedure, that in some cases give a signal error like this:
CREATE DEFINER=`root`#`localhost` PROCEDURE `InsertAction`(IN `EmployerID` INT, IN `StoreFromID` INT, IN `StoreToID` INT, IN `StoreID` INT, IN `ProductID` INT, IN `Quantity` DECIMAL(10,2), IN `DualOperation` TINYINT, IN `inOrOut` TINYINT)
LANGUAGE SQL
NOT DETERMINISTIC
CONTAINS SQL
SQL SECURITY DEFINER
COMMENT ''
BEGIN
START TRANSACTION;
SELECT #lastActionID;
SELECT #lastTransferID;
SELECT #retval;
SELECT SUM(ad.Quantity) INTO #retVal FROM productin pri JOIN actiondetails ad ON ad.ID=pri.ID;
IF DualOperation = 1
THEN
IF #retVal>Quantity
THEN
INSERT INTO Actions (EmployerID, StorehouseID, `Date`)
VALUES (EmployerID, StoreFromID, CURDATE());
SET #lastActionID = (SELECT ID FROM Actions ORDER BY ID DESC LIMIT 1);
INSERT INTO ProductTransfer (ID, TransferType)
VALUES (#lastActionID, 0);
INSERT INTO ActionDetails (ID,ProductID, Quantity)
VALUES (#lastActionID, ProductID, Quantity);
SET #lastTransferID = (SELECT ID FROM ProductTransfer ORDER BY ID DESC LIMIT 1);
INSERT INTO Actions (EmployerID, StorehouseID, `Date`) VALUES (EmployerID, StoreToID, CURDATE());
SET #lastActionID = (SELECT ID FROM Actions ORDER BY ID DESC LIMIT 1);
INSERT INTO ProductTransfer (ID, TransferType, ParentID) VALUES (#lastActionID, 1, #lastTransferID);
INSERT INTO ActionDetails (ID,ProductID, Quantity)
VALUES (#lastActionID, ProductID, Quantity);
ELSE
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Not enough materials';
END IF;
ELSE
INSERT INTO Actions (EmployerID, StorehouseID, `Date`)
VALUES (EmployerID, StoreID, CURDATE());
SET #lastActionID = (SELECT ID FROM Actions ORDER BY ID DESC LIMIT 1);
INSERT INTO ActionDetails (ID, ProductID, Quantity)
VALUES (#lastActionID, ProductID, Quantity);
IF InOrOut = 0
THEN
INSERT INTO ProductIn (ID, OrganizationID) values (#lastActionID, NULL);
ELSE
IF #retVal>Quantity
THEN
INSERT INTO ProductOut (ID, OrganizationID) values (#lastActionID, NULL);
ELSE
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Not enough materials';
END IF;
END IF;
END IF;
COMMIT;
END
When i run this code through Mysql query everything seems to be working just fine. it gives a signal of "not enough materials" IF #retVal<=Quantity and no records are inserted(works as it should be)...
But when i call this procedure from PHP it simply doesn't give any error. none of rows are inserted but i cant get notification that the oppreration failed... here is php code:
$mysqli->query("CALL `InsertAction`('6', '1', '2', '0', '13', '431243241', '1', '0')");
the $mysqli->sqlstate gives 0000.
how should i understand the procedure was done or got signal?
so what i really want is, if #retVal<=Quantity then give php exception. and this code prints "string" out:
try {
$mysqli->query("CALL `InsertAction`(6, 1, 2, 0, 13, 431243241, 1, 0)");
}
catch (Exception $e){
echo "string";
}

Answer 1

MYSQLI does not throw exceptions you have to do the old fashioned way
$result = $mysqli->query("CALL InsertAction(6, 1, 2, 0, 13, 431243241, 1, 0)");
if ($result === false) {
echo $mysqli->error;
exit;
}
Also the 6th param is a decimal (10,2) not an int the number you are passing does not fit that 10,2 which if I rememebr correctly mean 8 digits before the decimal place and 2 after, so try a number that fits like
$result = $mysqli->query("CALL InsertAction(6, 1, 2, 0, 13, 4312432.41, 1, 0)");

Answer 2

The real problem in the code above is that variables are not Declared. so i changed this Select statements to Declare statements.
BEGIN
DECLARE lastActionID INT unsigned;
DECLARE lastTransferID INT unsigned;
DECLARE retval INT unsigned;
START TRANSACTION;
SELECT SUM(ad.Quantity) INTO retVal FROM productin pri JOIN actiondetails ad ON ad.ID=pri.ID;
IF DualOperation = 1
THEN
IF retVal>Quantity
THEN
INSERT INTO Actions (EmployerID, StorehouseID, `Date`)
VALUES (EmployerID, StoreFromID, CURDATE());
SET lastActionID = (SELECT ID FROM Actions ORDER BY ID DESC LIMIT 1);
INSERT INTO ProductTransfer (ID, TransferType)
VALUES (lastActionID, 0);
INSERT INTO ActionDetails (ID, ProductID, Quantity)
VALUES (lastActionID, ProductID, Quantity);
SET lastTransferID = (SELECT ID FROM ProductTransfer ORDER BY ID DESC LIMIT 1);
INSERT INTO Actions (EmployerID, StorehouseID, `Date`) VALUES (EmployerID, StoreToID, CURDATE());
SET lastActionID = (SELECT ID FROM Actions ORDER BY ID DESC LIMIT 1);
INSERT INTO ProductTransfer (ID, TransferType, ParentID) VALUES (lastActionID, 1, lastTransferID);
INSERT INTO ActionDetails (ID,ProductID, Quantity)
VALUES (lastActionID, ProductID, Quantity);
ELSE
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Not enough materials';
END IF;
ELSE
INSERT INTO Actions (EmployerID, StorehouseID, `Date`)
VALUES (EmployerID, StoreID, CURDATE());
SET #lastActionID = (SELECT ID FROM Actions ORDER BY ID DESC LIMIT 1);
INSERT INTO ActionDetails (ID, ProductID, Quantity)
VALUES (lastActionID, ProductID, Quantity);
IF InOrOut = 0
THEN
INSERT INTO ProductIn (ID, OrganizationID) values (lastActionID, NULL);
ELSE
IF retVal>Quantity
THEN
INSERT INTO ProductOut (ID, OrganizationID) values (lastActionID, NULL);
ELSE
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Not enough materials';
END IF;
END IF;
END IF;
COMMIT;
select true;
END
now i am able to get $mysqli->sqlstate 45000 and check whether there was an error in procedure

Answer 3

Actualy you'll need to make some preparation to catch exceptions from MySql in PHP.
Use:
$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL ^ MYSQLI_REPORT_INDEX;