0

我正在使用 php、一些 javascript 和 sql server 2008 进行调度项目。用户可以使用作业表单来更新已调度的作业。可以更改的字段有：作业编号、开始时间、结束时间、描述和作业状态。sql 需要在更新之前测试所有这些东西。

  1. 我遇到的一些问题是：
    1. 如果用户增加了结束时间（到以后的时间），它允许在调度中重叠
    2. 如果用户将开始时间移回（更早的时间），则允许重叠
    3. 如果用户从过去选择一个日程安排日期，它会与未来安排的项目发生日程安排冲突。

我已经坚持了两天，并且已经朝着多个方向解决了这些问题。这是我目前拥有的：

 <?php 
include_once("../php/functions.php");
    $conn = connect();
    $params = array
        (
            $jobNum         =   $_POST['jobNum'],
            $asset          =   $_POST['drp_asset'],
            $jobStatus      =   $_POST['drp_status'],
            $sDate          =   $_POST['startTime'],
            $eDate          =   $_POST['endTime'],
            $department     =   $_POST['drp_department'],
            $descrip        =   $_POST['txtarea_description'],
            $job            =   $_POST['jobid'],
            $asset2         =   $_POST['drp_asset']
        );
/********************************************
Check to see if the delete button was pressed
And if the pre-check warning was confirmed 
delete the record.
********************************************/
if (isset($_POST['updateDelete']))
{
    $tsql = "Delete from Calendar_view
            where JobID = '$job'";

    $stmt = sqlsrv_query($conn, $tsql);
    if ($stmt)
    {
        checkRows($stmt);
        returnTo($conn);
    }
    else
    {
        errMsg();
    }
}
/****************************************
If the times and/or asset have not changed 
update the job status
****************************************/
else
{
    $tsql_check ="select StartTime, EndTime, Asset
                    from  Calendar_View
                    where '$sDate' = StartTime and '$eDate' = EndTime and '$asset' = Asset";
    $stmt = sqlsrv_query($conn, $tsql_check);
    $rows = sqlsrv_has_rows($stmt);
    if($stmt)
    {
        if ($rows === true)
        {
            updateJobStatus($conn, $params);
        }

        else
        {
            timeChanges($conn, $params);
        }
    }
}

function checkOverlaps($conn, $params)
{
    $sDate = $params[3];
    //$sDate = new DateTime($params[4]);
    //$sDate = date_format($sDate,'Y-m-d G:i:s');
    $eDate = $params[4];
    //$eDate = new DateTime($params[5]);
    //$eDate = date_format($eDate,'Y-m-d G:i:s');
    $asset = $params[1];

    $tsql_check ="select StartTime, EndTime
                    from  Calendar_View
                    where (('$sDate' < EndTime and '$sDate' >= StartTime) or ('$eDate' < EndTime and '$eDate' > StartTime)) and '$asset' = Asset";
    $stmt = sqlsrv_query($conn, $tsql_check);

    if ($stmt)
    {
        // If there is a match, there will be an overlap
        $rows = sqlsrv_has_rows($stmt);
        if ($rows === true)
        {
            checkRows($stmt);
        }
        //If there is no match then job is being moved
        //to an open spot
        else
        {
            updateJob($conn, $params);
        }
    }
}
/************************************
If the start time or end time have changed
/***********************************/
function timeChanges($conn, $params)
{
    $sDate = $params[3];
    $eDate = $params[4];
    $asset = $params[1];

    $tsql_timeCheck ="select StartTime, EndTime
                    from  Calendar_View
                    where (('$sDate' <= StartTime) or ('$eDate' <= EndTime)) and '$asset' = Asset"; 
    $stmt2 = sqlsrv_query($conn, $tsql_timeCheck);

    if ($stmt2 == true)
    {
        $rows = sqlsrv_has_rows($stmt2);
        if ($rows === true)
        {
            updateJobStatus($conn, $params);
            //updateJobStatus($conn, $params);
        }
        else
        {
            checkOverlaps($conn, $params);
        }
    }
}
function updateJob($conn, $params)
{
    $tsql = "UPDATE Calendar_View
                SET     JobNum = ?,
                        Asset = ?,
                        JobStatus =?,
                        StartTime =?,
                        EndTime =?,
                        Department = ?,
                        Description = ?
                WHERE   JobID = ?";

    $stmt = sqlsrv_query($conn, $tsql, $params);
    if ($stmt)
    {
        checkRows($stmt);
        returnTo($conn);
    }
        else
    {
        errMsg();
    }
}
/***************************************
Update job status
****************************************/
function updateJobStatus($conn, $params)
{
    $tsql = "UPDATE Calendar_View
                SET     JobNum = ?,
                        Asset = ?,
                        JobStatus =?,
                        StartTime =?,
                        EndTime =?,
                        Department = ?,
                        Description = ?
                WHERE   JobID = ? and Asset = ?";

    $stmt = sqlsrv_query($conn, $tsql, $params);
    if ($stmt)
    {
        checkRows($stmt);
        returnTo($conn);
    }
        else
    {
        errMsg();
    }
}
/**********************************
Return user to scheduling page they
were working on.
***********************************/
function returnTo($conn)
{
    sqlsrv_close($conn);
    echo "<meta http-equiv='refresh' content='1;URL=../pages/schedule2.php' />";
}
function errMsg()
{
    die( print_r(sqlsrv_errors(), true));
    exit;
}
/*************************************
Check if any rows were altered by the 
query. If so alert success, else alert
that there was a conflict (nothing done)
**************************************/
function checkRows($stmt)
{
    $rows_affected = sqlsrv_rows_affected($stmt);
    if ($rows_affected > 0)
    {
    echo "Job updated successfully!<br>";
    }
    else
    echo "There was a scheduling conflict.";
    echo "<meta http-equiv='refresh' content='2;URL=../pages/schedule2.php' />";
}
?>

任何和所有的帮助将不胜感激！

4

3 回答 3

1

我看到很多查询来检查一切是否正常......您也可以使用这种方法：

  • 首先创建一个映射数组，如下所示：

    Array( 'key1' => 'val1',
   'key2' => 'val2',
   'key3' => 'val3',
   'key4' => 'val4');

  • 确保你把你的帖子变量放在这个结构中

  • 确保对数据库中与映射对应的所有字段执行查询，并将它们放入相同结构的新实例中

  • 用于array_diff_assoc比较差异

  • 如果时间有什么不同，请执行一些逻辑（可能查询数据库）以查看日期是否匹配

如果您在实施这个想法时需要帮助，我可以帮助您，但请先为自己尝试一些东西；）

于 2013-08-09T16:00:28.967 回答
0

在找到更有效的解决方案之前，您可以在事务中进行更改，然后查询数据库以查看是否有任何条件失败。如果他们这样做，您可以回滚。

我想要非常小心，您应该查询更新前后的失败次数，如果失败则回滚。这样您就可以确定您的更改是引入错误的更改。

于 2013-08-09T15:52:43.073 回答
0

以下解决方案用于检查调度中的所有重叠。

<?php 
include_once("../php/functions.php");
    $conn = connect();

    $controlDate1   =   date_format(new DateTime($_POST['pickedDate']),'Y-m-d H:i:s');
    $controlDate2   =   date_format(new DateTime($_POST['pickedDate']),'Y-m-d 23:59:00');
    $jobNum         =   $_POST['jobNum'];
    $asset          =   $_POST['drp_asset'];
    $jobStatus      =   $_POST['drp_status'];
    $sDate          =   date_format(new DateTime($_POST['startTime']),'Y-m-d H:i:s');
    $eDate          =   date_format(new DateTime($_POST['endTime']),'Y-m-d H:i:s');
    $descrip        =   $_POST['txtarea_description'];
    $job            =   $_POST['jobid'];
/*****************************************************
used for testing purposes
******************************************************
$checkVals = array(
            $controlDate1   =   $controlDate1,
            $controlDate2   =   $controlDate2,
            $jobNum         =   $_POST['jobNum'],
            $asset          =   $_POST['drp_asset'],
            $jobStatus      =   $_POST['drp_status'],
            $sDate          =   $sDate,
            $eDate          =   $eDate,
            $descrip        =   $_POST['txtarea_description'],
            $job            =   $_POST['jobid'],
            );
/***************************************************/
/********************************************
Check to see if the delete button was pressed
And if the pre-check warning was confirmed 
delete the record.
********************************************/
if (isset($_POST['updateDelete']))
{
    $tsql = "Delete from Calendar_view
            where JobID = '$job'";

    $stmt = sqlsrv_query($conn, $tsql);
    if ($stmt)
    {
        checkRows($stmt);
        returnTo($conn);
    }
    else
    {
        errMsg();
    }
}
/****************************************
If the times and/or asset have not changed 
update the job status, description
****************************************/
else
{
    $tsql_check ="SELECT JobNum, StartTime, EndTime, Description, Asset, JobStatus, JobID
                    from  Calendar_View
                    where JobID = '$job' and JobNum = '$jobNum' and StartTime = '$sDate' and EndTime = '$eDate' and Asset = '$asset'";
    $stmt = sqlsrv_query($conn, $tsql_check);
    $rows = sqlsrv_has_rows($stmt);
    if($stmt)
    {
        if ($rows === true)
        {
            $params = array($jobStatus,$descrip, $job, $asset);
            updateJobStatus($conn, $params);
        }

        else
        {
            $tsql_check ="SELECT JobNum, StartTime, EndTime, Description, Asset, JobStatus, JobID
                            from  Calendar_View
                            where (JobID != '$job' and 
                            (StartTime < '$controlDate2' and StartTime > '$controlDate1') and 
                            (('$sDate' < EndTime and '$sDate' >= StartTime) or ('$eDate' < EndTime and '$eDate' > StartTime) or ('$sDate' < StartTime and '$eDate' > EndTime)))
                            and Asset = '$asset'";
            $stmt = sqlsrv_query($conn, $tsql_check);
            $rows = sqlsrv_has_rows($stmt);
            if($stmt)
            {
                if ($rows === true)
                {
                    checkRows($stmt);
                }
                else
                {
                    //pass values to updateJob()
                    $params = array($jobNum,
                                    $asset,
                                    $jobStatus,
                                    $sDate,
                                    $eDate,
                                    $descrip,
                                    $job);
                    updateJob($conn, $params);
                }
            }
        }
    }
}
function updateJob($conn, $params)
{
    $tsql = "UPDATE Calendar_View
                SET     JobNum = ?,
                        Asset = ?,
                        JobStatus =?,
                        StartTime =?,
                        EndTime =?,
                        Description = ?
                WHERE   JobID = ?";

    $stmt = sqlsrv_query($conn, $tsql, $params);
    if ($stmt)
    {
        checkRows($stmt);
        returnTo($conn);
    }
        else
    {
        errMsg();
    }
}
/***************************************
Update job status
****************************************/
function updateJobStatus($conn, $params)
{
    $tsql = "UPDATE Calendar_View
                SET     JobStatus =?,
                        Description = ?
                WHERE   JobID = ? and Asset = ?";

    $stmt = sqlsrv_query($conn, $tsql, $params);
    if ($stmt)
    {
        checkRows($stmt);
        returnTo($conn);
    }
        else
    {
        errMsg();
    }
}
/**********************************
Return user to scheduling page they
were working on.
***********************************/
function returnTo($conn)
{
    sqlsrv_close($conn);
    echo "<meta http-equiv='refresh' content='1;URL=../pages/schedule2.php' />";
}
function errMsg()
{
    die( print_r(sqlsrv_errors(), true));
    exit;
}
/*************************************
Check if any rows were altered by the 
query. If so alert success, else alert
that there was a conflict (nothing done)
**************************************/
function checkRows($stmt)
{
    $rows_affected = sqlsrv_rows_affected($stmt);
    if ($rows_affected > 0)
    {
        echo "Job updated successfully!<br>";
    }
    else
    {
        echo "There was a scheduling conflict.";
    }
    echo "<meta http-equiv='refresh' content='2;URL=../pages/schedule2.php' />";
}
?>
于 2013-08-12T19:45:57.983 回答