Question

使用表单模式遇到麻烦。基本上它是第一次工作，但每隔一段时间它就会保留第一次的数据。

基本上我有一个页面（metadata.php），它有一个按钮来打开模态并根据一些表数据传递一个ID。

由于某种原因，$ ID变量卡住了，当用户关闭模态并单击另一个编辑按钮时，它会显示第一个对象的表单。我很确定这是因为我没有清除PHP变量更正，但每次都应该通过$ id = $ _REQUEST ['id']来获取$ ID。

任何帮助将不胜感激。

HTML（metadata.php）：

<a data-toggle="modal" data-target="#updateModal" class="btn-sm btn-success" href="./update.php?id='.$row['CLUSTERNAME'].'">Edit</a>

HTML（metadata.php）。请注意，正文是空白的，因为我用它来打开update.php：

<div class="modal fade" id="updateModal" tabindex="-1" role="dialog"
                aria-labelledby="updateModal" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-body">

            </div>
        </div>
    </div>
 </div>

PHP（update.php）：

<?php 
include("../scripts/connect.php");
include("../config.php");

$id = null;

if ( !empty($_GET['id'])) {
    $id = $_REQUEST['id'];

}

if ( null==$id ) {
    header('Location: ' . $_SERVER['HTTP_REFERER']);
}

if ( !empty($_POST)) {
    // keep track validation errors
    $datacenterError = null;
    $tierError = null;

    // keep track post values
    $datacenter = $_POST['datacenter'];
    $tier = $_POST['tier'];

    // validate input
    $valid = true;
    $note = preg_replace('/[^\w%!&, ]/', '', $note); // Removes special chars.

    if (empty($datacenter)) {
        $datacenterError = 'Please select a Datacenter';
        $valid = false;
    }
    if (empty($tier)) {
        $tierError = 'Please select a Tier';
        $valid = false;
    }

    // update data
    if ($valid) {

        $sql = "UPDATE <table> SET DATACENTER='$datacenter', TIER='$tier' WHERE CLUSTERNAME = '$id'";
                    $stmt = sqlsrv_query( $conn, $sql );
                    if( $stmt === false) {
                        die( print_r( sqlsrv_errors(), true) );
                    }
        header('Location: ' . $_SERVER['HTTP_REFERER']);
    }
} else {
    $sql = "select CLUSTERNAME,VCENTER_NAME,DATACENTER,TIER FROM <table> WHERE CLUSTERNAME = '$id'";
                    $stmt = sqlsrv_query( $conn, $sql );
                    if( $stmt === false) {
                        die( print_r( sqlsrv_errors(), true) );
                    }
    while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC) ) {
                    $clustername = $row['CLUSTERNAME'];
                    $vcentername = $row['VCENTER_NAME'];
                    $datacenter = $row['DATACENTER'];
                    $tier = $row['TIER'];
                    }
}
?>

HTML表单（update.php）：

<body>

<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
<h4 class="modal-title" id="myModalLabel">Update a Cluster</h4>
</div>
<div class="modal-body">

<div class="container">
<!--Default buttons with dropdown menu-->
<form class="form-horizontal" action="metadata_update.php?id=<?php echo $id?>" method="post">
    <div class="col-lg-6">

                <div class="form-group">
                  <label class="col-md-4 control-label" for="clustername">Cluster</label>  
                  <div class="col-md-6">
                  <input id="clustername" name="clustername" type="text" value="<?php echo !empty($clustername)?$clustername:'';?>" class="form-control input-md" disabled>
                  </div>
                </div>

                <div class="form-group">
                  <label class="col-md-4 control-label" for="vcentername">vCenter</label>  
                  <div class="col-md-6">
                  <input id="vcentername" name="vcentername" type="text" value="<?php echo !empty($vcentername)?$vcentername:'';?>" class="form-control input-md" disabled>
                  </div>
                </div>

                <div class="<?php echo !empty($datacenterError)?'error':'';?> form-group">
                <label class="col-md-4 control-label" for="datacenter">Datacenter</label>
                <div class="col-md-6">
                <select id="datacenter" name="datacenter" class="form-control" value="<?php echo !empty($datacenter)?$datacenter:'';?>>
                  <option value="test">test</option>
                  <option value="test2">test2</option>
                </select>
                <?php if (!empty($datacenterError)): ?>
                            <span class="help-block"><?php echo $datacenterError;?></span>
                <?php endif;?>
              </div>
            </div>

            <div class="<?php echo !empty($tierError)?'error':'';?> form-group">
              <label class="col-md-4 control-label" for="tier">Tier</label>
              <div class="col-md-6">
                <select id="tier" name="tier" class="form-control">
                  <option value="All">All</option>
                  <option value="Empty">Empty</option>
                </select>
                <?php if (!empty($tierError)): ?>
                            <span class="help-block"><?php echo $tierError;?></span>
                <?php endif;?>
              </div>
            </div>
            <div class="modal-footer">
                  <div class="form-actions">
                    <button type="submit" class="btn btn-success">Update</button>
                    <button type="button" data-dismiss="modal" class="btn btn-default">Back</button>

                    </div>
                </form>
                </div>
                 </div> <!-- /container -->
    </div> <!-- /col -->
  </div>

Answer 1

添加了以下脚本，它似乎正在运行。虽然它没有清除PHP变量，但是当打开一个新模态时它似乎正在刷新它们。

<script>
$('body').on('hidden.bs.modal', '.modal', function () {
$(this).removeData('bs.modal');
});
</script>

模态关闭后取消设置PHP变量

1 个答案: