用thinkphp，后台新增栏目，可以增加但栏目名称是空的。

Question

文件CateController.class

 public function add(){
        $cate=D('cate');//实例化数据库，提交到cate表里面，$cate代表变量
        if(IS_POST){//如果检测到发送（IS_POST）代表发送的意思
            $data['catename']=I('catename');
            //dump($data);die();

            if($cate->create($data)){
                if($cate->add()){
                    $this->success('新增栏目成功',U(lst));
                }
                else{
                    $this->error('新增栏目失败');
                }
            }
            else{
                $this->error($cate->getError());
            }
            return;

        }   
        $cates=$cate->select();
        $this->assign('cates',$cates);
        $this->display();
    }

另一个文件add.html

<label for="category-name">栏目名称</label>
              <input type="text" id="title" name="catename"  class="form-control" value="" >
              <span class="prompt-text">这将是它在站点上显示的名字。</span> </div>
            <button class="btn btn-primary" type="submit" name="catename">添加新栏目</button>
          </form>
        </div>
        <div class="col-md-7">
          <h1 class="page-header">管理 <span class="badge">3</span></h1>
          <div class="table-responsive">
            <table class="table table-striped table-hover">
              <thead>
                <tr>
                  <th><span class="glyphicon glyphicon-paperclip"></span> <span class="visible-lg">ID</span></th>
                  <th><span class="glyphicon glyphicon-file"></span> <span class="visible-lg">名称</span></th>
                  <th><span class="glyphicon glyphicon-pencil"></span> <span class="visible-lg">操作</span></th>
                </tr>
              </thead>
              <tbody>
               <volist name="cates" id="vo">
                <tr>
                  <td>{$vo.id}</td>
                  <td>{$vo.catename}</td>
                  <td><a href="__CONTROLLER__/edit/id/{$vo.id}">修改</a>
                  <a href="__CONTROLLER__/del/id/{$vo.id}" onclick="return confirm('你要删除栏目{$vo.catename}吗?');" >删除</a></td>
                </tr>
             </volist>
              </tbody>

大神们，我渣新来着……

Answer 1

           if($cate->add($data)){
                $this->success('新增栏目成功',U(lst));
            }