mysqli 信号到 php 错误 [重复]

问题描述 投票：0回答：4

我有 Mysql 存储过程，在某些情况下会给出这样的信号错误：

    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

当我通过 Mysql 查询运行此代码时，一切似乎都运行良好。如果

@retVal<=Quantity
并且没有插入记录（按原样工作），它会发出“材料不足”的信号... 但是当我从 PHP 调用这个过程时，它根本不会给出任何错误。没有插入任何行，但我无法收到通知失败的消息...这是 php 代码：

$mysqli->query("CALL `InsertAction`('6', '1', '2', '0', '13', '431243241', '1', '0')");


the $mysqli->sqlstate
给出
0000
。 我应该如何理解程序已完成或收到信号？

所以我真正想要的是，如果 

@retVal<=Quantity
然后给 php 异常。这段代码打印出
"string"
：

try {
$mysqli->query("CALL `InsertAction`(6, 1, 2, 0, 13, 431243241, 1, 0)");
}
catch (Exception $e){
    echo "string";
}
php mysql mysqli signals
4个回答
0
投票

MYSQLI 不会抛出异常，您必须使用老式的方式

$result = $mysqli->query("CALL InsertAction(6, 1, 2, 0, 13, 431243241, 1, 0)");
if ($result === false) {
    echo $mysqli->error;
    exit;
}

此外，第 6 个参数是小数 (10,2) 不是整数，您传递的数字不适合 10,2 如果我记得正确的话，意思是小数点前 8 位和小数点后 2 位，所以请尝试适合的数字喜欢

 $result = $mysqli->query("CALL InsertAction(6, 1, 2, 0, 13, 4312432.41, 1, 0)");
0
投票

上面代码中真正的问题是没有声明变量。所以我将此 Select 语句更改为 Declare 语句。

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

现在我可以得到

$mysqli->sqlstate
45000
并检查程序是否有错误

0
投票

实际上，您需要做一些准备才能在 PHP 中捕获来自 MySql 的异常。

使用：

$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL ^ MYSQLI_REPORT_INDEX;
-1
投票

1。你可以使用 try/catch 语句：

PHP 端：

$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT;
$dbh = new mysqli(...);

try {
    $result = $dbh->query("CALL proc_test_2(2)");
} catch (Throwable $err) {
    print_r([
        "code" => $err->getCode(),
        "msg" => $err->getMessage(),
        "trace" => $err->getTraceAsString()
    ]);
}

MySQL 例程（在此我展示了 SQLSTATE 的“快捷方式”-ERR_CUSTOM）：

DROP PROCEDURE IF EXISTS proc_test_2;
CREATE PROCEDURE proc_test_2 (IN p_id INT)
BEGIN
    DECLARE ERR_CUSTOM CONDITION FOR SQLSTATE '45000';

    IF (p_id > 10) THEN
        SIGNAL ERR_CUSTOM SET MESSAGE_TEXT = 'ERR #1', MYSQL_ERRNO = 1;
    END IF;

    IF (p_id < 5) THEN
        SIGNAL SQLSTATE '45001' SET MESSAGE_TEXT = 'ERR #2', MYSQL_ERRNO = 222;
    END IF;

    SELECT p_id;
END;

2。另一个解决方案

DROP PROCEDURE IF EXISTS proc_test;
CREATE
    PROCEDURE proc_test (
    IN p_id INT
)
BEGIN
    DECLARE E_STATE CHAR(5) DEFAULT '00000';
    DECLARE E_MSG TEXT DEFAULT 'SUCCESS';
    DECLARE E_NUM, DIAG_CNT INT DEFAULT 0;

    DECLARE ERR_CUSTOM CONDITION FOR SQLSTATE '45000';

    DECLARE EXIT HANDLER FOR SQLEXCEPTION
        BEGIN
            GET DIAGNOSTICS DIAG_CNT = NUMBER;
            GET DIAGNOSTICS CONDITION DIAG_CNT E_STATE = RETURNED_SQLSTATE, E_MSG = MESSAGE_TEXT, E_NUM = MYSQL_ERRNO;
            SELECT CAST(JSON_OBJECT('e_state', E_STATE, 'e_msg', E_MSG, 'e_num', E_NUM) AS JSON) app_debug2;
        END;

    IF (p_id > 10) THEN
        SIGNAL ERR_CUSTOM SET MESSAGE_TEXT = 'Invalid p_id', MYSQL_ERRNO = 1;
    END IF;

    IF (p_id < 5) THEN
        SIGNAL SQLSTATE '45001' SET MESSAGE_TEXT = 'INVALID #2', MYSQL_ERRNO = 2;
    END IF;

    SELECT p_id;
END;

下一个：

CALL proc_test(5);
CALL proc_test(11);

3。您可以将它们全部混合使用（例如用于记录目的）

MySQL日志表：

DROP TABLE IF EXISTS error_logs;
CREATE TABLE error_logs (
    error_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    error_log JSON
);

MySQL例程：

DROP PROCEDURE IF EXISTS proc_test_3;
CREATE PROCEDURE proc_test_3(
    IN p_id INT
)
BEGIN
    DECLARE E_STATE CHAR(5) DEFAULT '00000';
    DECLARE E_MSG TEXT DEFAULT 'SUCCESS';
    DECLARE E_NUM, DIAG_CNT INT DEFAULT 0;

    DECLARE ERR_CUSTOM CONDITION FOR SQLSTATE '45000';

    DECLARE EXIT HANDLER FOR SQLEXCEPTION
        BEGIN
            GET DIAGNOSTICS DIAG_CNT = NUMBER;
            GET DIAGNOSTICS CONDITION DIAG_CNT E_STATE = RETURNED_SQLSTATE, E_MSG = MESSAGE_TEXT, E_NUM = MYSQL_ERRNO;
            INSERT INTO error_logs (error_date, error_log)
                SELECT CURRENT_TIMESTAMP, CAST(JSON_OBJECT('e_state', E_STATE, 'e_msg', E_MSG, 'e_num', E_NUM) AS JSON);
            RESIGNAL;
        END;

    IF (p_id > 10) THEN
        SIGNAL ERR_CUSTOM SET MESSAGE_TEXT = 'Invalid p_id', MYSQL_ERRNO = 111;
    END IF;

    IF (p_id < 5) THEN
        SIGNAL SQLSTATE '45001' SET MESSAGE_TEXT = 'INVALID #2', MYSQL_ERRNO = 222;
    END IF;

    SELECT p_id;
END;

PHP 端：

$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT;
$dbh = new mysqli(...);

try {
    $result = $dbh->query("CALL proc_test_3(2)");
} catch (Throwable $err) {
    print_r([
        "code" => $err->getCode(),
        "msg" => $err->getMessage(),
        "trace" => $err->getTraceAsString()
    ]);
}
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