At the end of the article modification chapter, I changed add() to save(), but it still showed that the article modification failed. Please teach me how to change it. Thank you.

Question

At the end of the article modification chapter, I changed add() to save(), but it still showed that the article modification failed. Please teach me how to change it, thank you

Answer 1

public function edit(){
    $article=D('article');
    if(IS_POST){
        $data['title']=I('title');
        $data['content']=I('content');
        $data['desc']=I('desc');
        $data['cateid']=I('cateid');
        $data['id']=I('id');
        if($_FILES['pic']['tmp_name']!=''){
            $upload = new \Think\Upload();// 实例化上传类
            $upload->maxSize   =     3145728 ;// 设置附件上传大小
            $upload->exts      =     array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型
            $upload->savePath  =      './Public/Uploads/'; // 设置附件上传目录
            $upload->rootPath  =      './'; // 设置附件上传目录
            $info   =   $upload->uploadOne($_FILES['pic']);
            if(!$info){
                $this->error($upload->getError());
            }else{
               $data['pic']=$info['savepath'].$info['savename'];
            }
        }
        if($article->create($data)){
            $save=$article->save();
            if($save !== false){
                $this->success('修改文章成功！',U('lst'));
            }else{
                $this->error('修改文章失败！');
            }
        }else{
            $this->error($article->getError());
        }
 
        return;
    }
    $articles=$article->find(I('id'));
    $this->assign('articles',$articles);
    $cateres=D('cate')->select();
    $this->assign('cateres',$cateres);
    $this->display();
}

Answer 2

If nothing has been changed, 0 will be returned. If it is 0, you will be prompted "No modifications were made". If it is greater than 0, it will be prompted that the modification was successful.