Rumah >hujung hadapan web >tutorial js >jQuery基于排序功能实现上移、下移的方法
本文实例讲述了jQuery基于排序功能实现上移、下移的方法。分享给大家供大家参考,具体如下:
效果
思路,
跟相邻元素,互换sort。
前提是每一个元素都有自己的sort值,不为零。
<tr id="{sh:$vo.id}"> <td> <span onclick="up(this);" class="glyphicon glyphicon-arrow-up text-danger up" style="cursor: pointer;" title="上移" aria-hidden="true"></span> <span onclick="down(this);" class="glyphicon glyphicon-arrow-down text-danger down" style="cursor: pointer;" title="下移" aria-hidden="true"></span> </td> <td> <span title="{sh:$vo.user_id}">{sh:$vo.store_name}</span> </td> <td class="center"><a href="{sh:$vo.logo}" target="_blank"><img src="{sh:$vo.logo}" width='30px;'></td> <td class="center">{sh:$vo.category_name}</td> <td class="center edit"> <a val="{sh:$vo.store_id}" onclick="view(this);" class="view btn btn-success" href="javascript:void(0);" title="查看"> <i class="halflings-icon white zoom-in"></i> </a> </td> </tr>
点击,触发up方法,down方法。
获取当前id。
通过jQuery,获取相邻的元素。
// 上移 function up(obj){ var $tr = $(obj).parents("tr"); if ($tr.index() != 0) { var current_id = $tr.attr('id'); var exchange_id = $tr.prev("tr").attr('id'); $.ajax({ url: '{sh::U("Mall/ajax","todo=exchange_sort")}', type: 'POST', data: 'current_id='+current_id+'&exchange_id='+exchange_id, success:function(json) { if (json == 1) { $tr.fadeOut().fadeIn(); $tr.prev().before($tr); layer.msg('上移成功', {icon: 1}); } else { layer.msg('上移失败', {icon: 2}); } } }); } } // 下移 function down(obj) { var len = $(".down").length; var $tr = $(obj).parents("tr"); if ($tr.index() != len - 1) { var current_id = $tr.attr('id'); var exchange_id = $tr.next("tr").attr('id'); $.ajax({ url: '{sh::U("Mall/ajax","todo=exchange_sort")}', type: 'POST', data: 'current_id='+current_id+'&exchange_id='+exchange_id, success:function(json) { if (json == 1) { $tr.fadeOut().fadeIn(); $tr.next().after($tr); layer.msg('下移成功', {icon: 1}); } else { layer.msg('下移失败', {icon: 2}); } } }); } }
这里用到了几个jQuery方法,prev(),next(),before(),after()。以及效果,fadeOut(),fadeIn()。以及一些简单的逻辑判断和技巧。
php后台处理,
case 'exchange_sort': $mallShopModel = M('Mall_shop'); $current_id = $this->_post('current_id','trim'); $exchange_id = $this->_post('exchange_id','trim'); $current_sort = $mallShopModel->where(array('id'=>$exchange_id))->getField('sort'); $exchange_sort = $mallShopModel->where(array('id'=>$current_id))->getField('sort'); $cdata['id'] = $current_id; $cdata['sort'] = $current_sort; $cres = $mallShopModel->save($cdata); $edata['id'] = $exchange_id; $edata['sort'] = $exchange_sort; $eres = $mallShopModel->save($edata); if ($cres !== FALSE && $eres !== FALSE){ exit('1'); } else { exit('2'); }