控制器
\Application\Admin\Controller\ImageCateController.class.php

<?php
namespace Admin\Controller;
use Admin\Controller\AuthController;
use Think\Auth;

class ImageCateController extends AuthController 
{
	public function _initialize()
	{
		parent::_initialize();
		$this->cate      = D('ImageCate');
	}

	public function cate()
	{
		$count      = $this->cate->where($map)->count();
		$page       = new \Think\Page($count , C('DEFAULT_PAGE_LIMIT'));
		// $page    = new \Think\Page($count , 5);
		$list       = $this->cate->where($map)->order('id desc')->limit($page->firstRow.','.$page->listRows)->select();
		$this->list = $list;
		$this->page = $page->show();
		$this->display();
	}
    
	public function cateUpdate()
	{
		if (IS_POST) {
			$data = I('post.');
			$res  = $this->cate->update($data);
			
			if ($res) {
				$this->ajaxReturn(['code'=>1,'msg'=>'更新成功']);
			}else{
				$this->ajaxReturn(['code'=>0,'msg'=>$this->cate->getError()]);
			}
		}else{
			$id = I('id');
			if ($id) {
				$this->info = $this->cate->where(array('id'=>$id))->find();
			}
			$this->cate = $this->cate->where($map)->order('id desc')->select();
			$this->display();
		}
	}

}

模型-图片分类
\Application\Admin\Model\ImageCateModel.class.php

<?php
namespace Admin\Model;
use Think\Model;
class ImageCateModel extends Model
{
    
    /* 数据库设置 */
    protected $connection = 'DB_CONFIG2';
	/**
	 * 自动验证
	 * @var array
	 */
	protected $_validate = array(
        array('title', 'require', 'title 不能为空'),
    );
	/**
	 * 自动完成
	 * @var array
	 */
    protected $_auto = array(
        array('create_time', NOW_TIME, 1),
        array('update_time', NOW_TIME, 3),
        array('status',1),
    );

    /**
     * 更新数据
     * @DateTime 2018-05-04
     * @return   [type]     [description]
     */
    public function update($info){
        $data = $this->create($info);
        // dump($this->getError());die;
        if(!$data){ //数据对象创建错误
            return false;
        }
        /* 添加或更新数据 */
        if(empty($data['id'])){
            return $this->add();
        }else{
        	return $this->save();
        }
    }
}

数据表

CREATE TABLE `lxl_image_cate` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(32) NOT NULL,
  `cid` int(11) NOT NULL,
  `create_time` int(11) NOT NULL,
  `update_time` int(11) NOT NULL,
  `status` tinyint(2) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

图片分类
\Application\Admin\View\ImageCate\cate.html

<include file="Public:header" />
<include file="Public:top" />
	<!-- Contents -->
	<div id="Contents">

		<!-- TopMain -->
		<div id="TopMain">
			<!-- btn_box -->
			<div class="btn_box floatL">
				<a href="{:U('Image/cateUpdate')}" >
					<input type="button" value="添加">
				</a>
			</div>
			<!-- /btn_box -->
		</div>
		<!-- /TopMain -->

		<!-- MainForm -->
		<div id="MainForm">
			<div class="form_boxA">
				<h2>图片分类列表</h2>
				<table cellpadding="0" cellspacing="0">
					<tr>
						<th>ID</th>
						<th>图片标题</th>
						<th>上级分类</th>
						<th>更新时间</th>
						<th>操作</th>
					</tr>
					<volist name="list" id="vo">

						<tr>
							<td>{$vo.id}</td>
							<td>{$vo.title}</td>
							<td>{$vo.cid}</td>
							<td>{$vo.update_time|date="Y-m-d H:i:s",###}</td>
							<td>
								<a href="{:U('Image/cateUpdate',array('id'=>$vo[id]))}">编辑</a>
							</td>
						</tr>
					</volist>
				</table>
			</div>
		</div>
		<!-- /MainForm -->

		<!-- PageNum -->
		{$page}
		<!-- /PageNum -->
	</div>
<!-- /Contents -->

<include file="Public:footer" />

添加图片分类
\Application\Admin\View\ImageCate\cateUpdate.html

<include file="Public:header" />
<include file="Public:top" />
    <!-- Contents -->
    <div id="Contents">
        <!-- TopMain -->
        <div id="TopMain">
            <!-- btn_box -->
            <div class="btn_box floatL">
                <a href="{:U('Image/cate')}" style="text-decoration: none;">
                    <input type="button" value="返回" >
                </a>
            </div>
            <!-- /btn_box -->
        </div>
            <!-- /TopMain -->

        <!-- MainForm -->
        <div id="MainForm" style="padding: 50px;">
            <div class="form_boxC">
                <form id="form" method="post">
                    <table cellpadding="0" cellspacing="0">
                        <tr>
                            <th>标题</th>
                            <td><div class="txtbox floatL">
                            <input type="text" name="title" id="title" size="100" value="{$info.title}" />
                            </div></td>
                        </tr>

                        <tr>
                            <th>分类</th>
                            <td>
                                <div class="selectbox floatL mag_r20">
                                    <select name="cid" id="cid">
                                        <option value="0" <if condition="$info['cid'] eq 0">selected="selected"</if>>顶级分类</option>
                                        <volist name="cate" id="vo">
                                            <option value="{$vo.id}" <if condition="$info['cid'] eq $vo['id']">selected="selected"</if>>{$vo.title}</option>
                                        </volist>
                                    </select>
                                </div>
                            </td>
                        </tr>

                        <tr>
                            <th>&nbsp;</th>
                            <td>
                                <div class="btn_box" style="box-shadow: none;">
                                    <input type="hidden" name="id" value="{$info.id}" />
                                    <input type="submit" style="min-width:160px;" value="修改">
                                </div>
                            </td>
                        </tr>
                    </table>
                </form>
            </div>
        </div>
        <!-- /MainForm -->
    </div>
    <!-- /Contents -->
    <script>
        $(function(){

            $("#form").submit(function(e){
                var res = $(this).serialize();
                var url = "{:U('Image/cateUpdate')}";
                $.ajax({  
                    url:  url,
                    data: res,  
                    type: 'post',  
                    success:function(data){  
                        if (data.code == 1) {
                            layer.alert(data.msg,{icon:6},function (index) {
                                layer.close(index);
                                window.location.href = "{:U('Image/cate')}";
                            }); 
                        } else{
                            layer.alert(data.msg,{icon:5},function (index) {
                                layer.close(index);
                                window.location.reload();
                            }); 
                        }
                    }
                });  
                return false; // 阻止表单跳转
            });
            
        });
    </script>

<include file="Public:footer" />

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