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  1. PO
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    <p>Sorry for such messy code - i'm at work = no much time, but should help You. You have to add data into tables: USERS and SOFTWARE. There was problem with NULL handling, and passing query result into variable.</p> <p>EDIT: fix for query "get the id of the just inserted tuple"</p> <pre><code>DELIMITER $$ DROP PROCEDURE IF EXISTS `ChallengeUser`$$ CREATE DEFINER=`root`@`localhost` PROCEDURE `ChallengeUser`( challengedUserID INT, currentUserID INT, startedGamePlayerUsername VARCHAR(255), startedGameID INT, incorrectID INT, alreadyChallengedPlayer INT, alreadyChallengedGameID INT ) BEGIN DECLARE TMP_ID INT DEFAULT 0; DECLARE TMP_W_PLAYER INT DEFAULT 0; DECLARE TMP_B_PLAYER INT DEFAULT 0; SELECT `username` INTO startedGamePlayerUsername FROM chess_users WHERE `user_id` = challengedUserID AND `user_id` != currentUserID LIMIT 1; IF startedGamePlayerUsername IS NOT NULL THEN SELECT `id` INTO TMP_ID FROM `chess_games` WHERE `whiteUserID` = currentUserID AND `blackUserID` = challengedUserID AND `outcome` = -1 LIMIT 1; -- here was bad NULL handling IF TMP_ID IS NULL OR TMP_ID='' THEN SELECT `softwareID` INTO TMP_W_PLAYER FROM chess_users WHERE `user_id`=currentUserID LIMIT 1; SELECT `softwareID` INTO TMP_B_PLAYER FROM chess_users WHERE `user_id`=challengedUserID LIMIT 1; INSERT INTO `chess_games` (`tournamentID`, `whiteUserID`,`blackUserID`, `whitePlayerSoftwareID`,`blackPlayerSoftwareID`, `moveList`) SELECT NULL, currentUserID, challengedUserID, TMP_W_PLAYER, TMP_B_PLAYER, ""; /* Get the id of the just inserted tuple */ SELECT max(`id`) INTO startedGameID FROM chess_games WHERE `whiteUserID` = currentUserID AND `blackUserID` = challengedUserID AND `whitePlayerSoftwareID` = TMP_W_PLAYER AND `blackPlayerSoftwareID` = TMP_B_PLAYER AND `moveList` = ""; ELSE SET alreadyChallengedPlayer = 1; SET alreadyChallengedGameID = TMP_ID; END IF; ELSE SET incorrectID = 1; END IF; SELECT startedGamePlayerUsername,startedGameID, incorrectID , alreadyChallengedPlayer , alreadyChallengedGameID; END$$ DELIMITER ; </code></pre>
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    1. POConverted PHP-Code to (My)SQL stored procedure
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    1. USjaczes
    1. USjaczes
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    1. POConverted PHP-Code to (My)SQL stored procedure
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    1. COI dont know PHP, so i dont know how to handle such output
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      1. USjaczes
    2. COThank you very much! Now most seems to work, except for `/* Get the id of the just inserted tuple */`.
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      1. USMartin Thoma
    3. CO@moose Look now ;) + add `max()` to get last game not random by `LIMIT`
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