使用laravel 5中的ajax在非对象上调用成员函数save（） [英] Call to a member function save() on a non-object using ajax in laravel 5

问题描述

我试图用ajax制作一个喜欢和不喜欢的按钮将它保存到数据库。

但是，它有时有效，有时它会在inspect的网络选项卡中给出错误响应，Call to非对象的成员函数save（）。



这是我的LikeController.php：

I am trying to make a like and dislike button with ajax to save it to the database.
But, it works sometimes and sometimes it gives error response in the network tab of inspect, Call to a member function save() on a non-object.

this is my LikeController.php :

<?php
    
    namespace App\Http\Controllers;
    
    use Illuminate\Http\Request;
    use App\Depress;
    use App\Http\Requests;
    
    class LikeController extends Controller
    {
        public function postLike(Request $request)
        {
            $post_id = $request->input('postId');
            //dd($post_id);
            $post = Depress::find($post_id);
            $post['like'] = $post['like'] + 1;
            $post->save();
            return null;
        }
    
        public function postDislike(Request $request)
        {
            $post_id = $request->input('postId');
            $post = Depress::find($post_id);
            $post['dislike'] = $post['dislike'] + 1;
            $post->save();
            return null;
        }
    }

问题似乎在

The problem seems to be in

$post->save();

但是，我不知道是什么问题。



任何人都请来救援，过去2天我一直被困在这里。

But, I don't know what is the problem.

Anyone please come to the rescue, I have been stuck here for the past 2 days.

<pre lang="PHP">

我的尝试：


我试过dd（$ post）并且似乎给出了正确的值。

What I have tried:

I have tried to dd($post) and it seems to give proper value.

推荐答案

request）
{

request) {

post_id =

post_id =

request->输入（' postId'）;
// dd（

request->input('postId'); //dd(

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