PHP Ajax实现表格实时编辑

!DOCTYPE html>
html lang="en">
head>
meta charset="UTF-8">
title>AJAX实时编辑/title>
script src="__PUBLIC__/jquery-1.7.2.min.js">/script>
/head>
body>
center>
table border="1" width="1000" id="g_table">
tr>
!-- th>ID/th> -->
th>TAB1/th>
th>TAB2/th>
th>TAB3/th>
th>TAB4/th>
th>span onclick="add()">添加/span>/th>
/tr>
foreach name="tablist" item="vv">
tr>
!-- td>{$vv.id}/td> -->
input type="hidden" name="id" value="{$vv.id}">
td>{$vv.tab1}/td>
td>{$vv.tab2}/td>
td>{$vv.tab3}/td>
td>{$vv.tab4}/td>
td>span onclick="del(this)" id="del">删除/span>span onclick="edit(this)" id="edit">修改/span>/td>
/tr>
/foreach>
/table>
/center>
/body>
script>
var g_table = $("#g_table");
function add(){
var addRow = $("tr>/tr>");

g_table.append(addRow);
for(var i = 0;i  4;i++){
var col_td = $("td>input type='text' />/td>");
addRow.append(col_td);
}
var col_opt = $("td>/td>");
var confirmBtn = $("a href='javascript:;'>确认/a>");
var cancelBtn = $("a href='javascript:;'>取消/a>");
cancelBtn.click(function(){
window.location.reload();
});
confirmBtn.click(function(){
var currentRow = $(this).parent().parent();
var input_files = currentRow.find("input");
var post_files = {};
for(var i = 0 , j = input_files.length;i  j;i++){
post_files['clo_' + i] = input_files[i].value;
}
// $.post("{:U('ajax/add')}",post_files,function(msg){
// debugger;
// })
$.ajax({
type: 'post',
url : "{:U('ajax/add')}",
data: {post_files},
success:function(msg){
alert(msg);
window.location.reload();
}
})
});
col_opt.append(confirmBtn);
col_opt.append(cancelBtn);
addRow.append(col_opt);
}
function del(obj){
var id = $(obj).parent().prev().prev().prev().prev().prev().val();
$.ajax({
type: 'post',
url: "{:U('ajax/del')}",
data: {id:id},
success:function(msg){
alert(msg);
}
})
$(obj).parent().parent().remove();
}
function edit(obj){
var id = $(obj).parent().prev().prev().prev().prev().prev().val();
for(var i = 1;i  5;i++){
var temp = "td>input type='text' value='" + $(obj).parent().parent().children().eq(i).html() + "'/>/td>";
$(obj).parent().parent().children().eq(i).replaceWith(temp);
}
var confirmBtn1 = $("span id='confirm'>确认/span>");
var cancelBtn1 = $("span onclick='back()'>取消/span>");
confirmBtn1.click(function(){
var currentRow = $(this).parent().parent();
var input_files = currentRow.find("input");
var post_files = {};
for(var i = 0 , j = input_files.length;i  j;i++){
post_files['clo_' + i] = input_files[i].value;
}
$.ajax({
type: 'post',
url : "{:U('ajax/edit')}",
data: {post_files:post_files,id:id},
success:function(msg){
alert(msg);
window.location.reload();
}
}) 
});
$(obj).prev().replaceWith(confirmBtn1);
$(obj).replaceWith(cancelBtn1);

}
function back(){
location.reload();
} 
/script>
/html>

?php 

namespace Home\Controller;
use Think\Controller;
class AjaxController extends Controller{
public function index(){
$tab = M('table');
$tablist = $tab->select();
$this->assign('tablist',$tablist);
$this->display();
}
public function del(){
$map['id'] = $_POST['id'];
$tab = M('table');
$info = $tab->where($map)->delete();
if($info){
$this->ajaxReturn("删除成功");
}else{
$this->ajaxReturn("删除失败");
}

}
public function add(){

$map['tab1'] = $_POST['post_files']['clo_0'];
$map['tab2'] = $_POST['post_files']['clo_1'];
$map['tab3'] = $_POST['post_files']['clo_2'];
$map['tab4'] = $_POST['post_files']['clo_3'];
$tab = M('table');
$res = $tab->add($map);
if($res){
$this->ajaxReturn("添加成功");
}else{
$this->ajaxReturn("添加失败");
}
}
public function edit(){
$id = $_POST['id'];
$map['tab1'] = $_POST['post_files']['clo_1'];
$map['tab2'] = $_POST['post_files']['clo_2'];
$map['tab3'] = $_POST['post_files']['clo_3'];
$map['tab4'] = $_POST['post_files']['clo_4'];
// dump($map);exit;
$tab = M('table');
$res = $tab->where('id='.$id)->save($map);
if($res){
$this->ajaxReturn("更新成功");
}else{
$this->ajaxReturn("更新失败");
}
}
}