Question

我有主表到子表，需要一个解决方案，以低于条件呈现它。

function deleteSubmission($conn,$submission_id)
{
    $query = "DELETE FROM submissions WHERE submission_id=:submission_id";
    $stmt = $conn->prepare($query);
        $stmt->bindValue(':submission_id',$submission_id);
    $affected_rows = $stmt->execute();
    if($affected_rows==1)
    {
            //echo $affected_rows;
            echo ($affected_rows) ? "true" : "false";
            echo " working ";
        return true;
    }else{
        //echo $affected_rows;
            echo ($affected_rows) ? "true" : "false";
            echo " not working ";   
            return false;
    }
}

孩子的产品是Master的外键。在模板中，我将提取主字段（在for循环中），但如果在子节点中存在price和customfields，那么我需要使用product关系获取子对象，否则从master表中填充这些对象。

这里出现了混乱，

//they didn't submit the form
if(!isset($_POST["deleteSubmissionsBtn"]))
{
    header("Location:all-submissions-delete.php");
    exit;
}

$msg;
//validate
if(isset($_POST['submissions']))
{
    $submissions=$_POST['submissions'];
    $conn=getConn();
    $count=0;
    foreach ($submissions as $submission_id) 
    {   


        if(deleteSubmission($conn,$submission_id))
        {
            $count++;
        }
                else{
                    echo "we got an error <br>";
                }

    }
        print_r($submissions); 
        //echo $submission_id;

    $conn=NULL;
    $msg="Successfully deleted $count submissions";
}else{
    $msg="You need to select some submissions to delete";
}

include("views/delete-feedback-view.php")

?>

请建议。

修改

echo "<form action='delete-submissions.php' method='POST'>";
foreach($allSubmissions as $submission)
{
    echo "<div>";
    echo "<label>".$submission->title."</label>";
    echo "<input type='checkbox' value='".$submission->submission_id."' name='submissions[]'/>";
    echo "</div>";
}
echo "<input type='submit' name='deleteSubmissionsBtn' value='delete submissions'>";
echo "</form>";

子表可能包含也可能没有给定供应商和pdctg

的所有主行

具有自定义功能的Django Master to Child表

0 个答案: