/**
  * @todo: 编辑文章
  * @author Saki <*****@*****.**>
  * @date 2014-12-15 下午3:56:16 
  * @version V1.0
  */
 public function update()
 {
     //类型列表
     $type_list = D('Admin/ArticleType')->where('status=1')->order('ctm desc')->select();
     $condition['id'] = $id = $_GET['id'];
     $model = new \Admin\Model\ArticleListModel();
     if (isset($_POST['Article'])) {
         $data = $model->updateArticle($_POST['Article'], $id);
         echo json_encode($data);
     } else {
         $article_info = $model->where($condition)->find();
         $this->assign('article_info', $article_info);
         $this->assign('type_list', $type_list);
         $this->assign('action', 'update');
         $this->display('form');
     }
 }