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jquery实现可拖动DIV自定义保存到数据的实例

2013-11-20 17:10 591 查看
看到一个不错的jquery插件,可拖动DIV,顺序可保存到数据库的一个实例:这里就以其中PHP实例简单说明一下:

代码如下:

<?php

//post到后台的数据

if ($_POST) {

$ids = $_POST["ids"];

for ($idx = 0; $idx < count($ids); $idx+=1) {

$id = $ids[$idx];

$ordinal = $idx;

//...

}

return;

}

?>

代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<style type="text/css">

body { font-family:Arial; font-size:12pt; padding:20px; width: 800px; margin:20px auto; border:solid 1px black; }

h1 { font-size:16pt; }

h2 { font-size:13pt; }

ul { width:350px; list-style-type: none; margin:0px; padding:0px; }

li { float:left; padding:5px; width:100px; height:100px; }

li div { width:90px; height:50px; border:solid 1px black; background-color:#E0E0E0; text-align:center; padding-top:40px; }

.placeHolder div { background-color:white!important; border:dashed 1px gray !important; }

</style>

</head>

<body>

//unity3d脚本http://www.unitymanual.com

<div>

<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>

<h1>jQuery List DragSort PHP Example</h1>

<a href="http://www.jb51.net/">Homepage</a><br/>

<br/>

<h2>Save list order with ajax:</h2>

<ul id="gallery">

<?php

$list = array("blue", "orange", "brown", "red", "yellow", "green", "black", "white", "purple");

for ($idx = 0; $idx < count($list); $idx+=1) {

echo "<li data-itemid='" . $idx . "'>";

echo "<div>" . $list[$idx] . "</div>";

echo "</li>";

}

?>

</ul>

<script type="text/javascript" src="jquery.dragsort-0.5.1.min.js"></script>

<script type="text/javascript">

//saveOrder为回调函数

$("#gallery").dragsort({ dragSelector: "div", dragEnd: saveOrder, placeHolderTemplate: "<li class='placeHolder'><div></div></li>" });

function saveOrder() {

var data = $("#gallery li").map(function() { return $(this).data("itemid"); }).get();

//通过ajax模拟post的方式,post格式形式为:[0, 1, 2, 5, 4, 3, 8, 6, 7]

$.post("example.php", { "ids[]": data });

};

</script>

<div style="clear:both;"></div>

</div>

</body>

</html>
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