【发布时间】：2015-09-16 02:30:40
【问题描述】：
我有三个数据库表。
-付费
-部分支付
-欧斯
当有人注册帐户时，我将他们的 user_id、姓名等发送到我的“Owes”数据库表中，然后将他们的姓名输出到我在“Owes”列中的拖放表中。到目前为止，如果我将任何人的姓名移至任何其他类别（付费/部分付费），我不确定如何从 Owes 数据库中删除该记录并将名称插入新的数据库表中，以便更改是永久性的。
真正让我失望的是如何使用拖放表来完成。我不确定如何应用逻辑，即当将某些内容放入该列时会删除过去的记录并将新记录添加到该特定表中，或者如何在没有提交按钮或页面重新加载的情况下进行更改。
我有什么方法可以做到这一点，我该如何构建它？
PHP
<?php
//Payment Section
$con = mysqli_connect("localhost", "root", "", "db");
$paid_run = mysqli_query($con,"SELECT * FROM paid ORDER BY id DESC");
$partially_paid_run = mysqli_query($con,"SELECT * FROM partial_payment ORDER BY id DESC");
$owes_run = mysqli_query($con,"SELECT * FROM owes ORDER BY id DESC");
$paid_numrows = mysqli_num_rows($paid_run);
$partially_paid_numrows = mysqli_num_rows($partially_paid_run);
$owes_numrows = mysqli_num_rows($owes_run);
if($paid_numrows > 0){
while($row = mysqli_fetch_assoc($paid_run)){
$paid_id = $row['user_id'];
$paid_name = $row['name'];
}
}
if($partially_paid_numrows > 0){
while($row = mysqli_fetch_assoc($partially_paid_run)){
$partially_paid_id = $row['user_id'];
$partially_paid_name = $row['name'];
$partially_paid_amount = $row['payment'];
}
}
if($owes_numrows > 0){
while($row = mysqli_fetch_assoc($owes_run)){
$owes_id = $row['user_id'];
$owes_name = $row['name'];
}
}
?>
$(function() {
$( "#paid, #partially_paid, #owes" ).sortable({
connectWith: ".tdPayment",
remove: function(e, ui) {
var $this = $(this);
var childs = $this.find('div');
if (childs.length === 0) {
$this.text("Nothing");
}
},
receive: function(e, ui) {
$(this).contents().filter(function() {
return this.nodeType == 3; //Node.TEXT_NODE
}).remove();
},
}).disableSelection();
});
表格
<table class="paymentTable" id="dragTable">
<tr>
<th class="thPayment">Paid</th>
<th class="thPayment">Partially Paid</th>
<th class="thPayment">Owes</th>
</tr>
<tr>
<td class="tdPayment" id="paid">
<div>
<?php
if ($paid_name == true) {
echo $paid_name;
} else {
echo "No one has paid";
}
?>
</div>
</td>
<td class="tdPayment" id="partially_paid">
<div>
<?php
if ($partially_paid__name == true) {
echo $partially_paid__name . " - " . $partially_paid_amount;
} else {
echo "No one has made a partial payment";
}
?>
</div>
</td>
<td class="tdPayment" id="owes">
<div>
<?php
if ($owes_name == true) {
echo $owes_name;
} else {
echo "Everyone has paid something";
}
?>
</div>
</td>
</tr>
</table>
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标签： javascript php ajax mysqli drag-and-drop