Laravel 5.2 Trying to get property of non-object - php

Question

I am following tutorial to make blog project on laravel 5.2, i am trying to show the user name from other table (users table). The post properties is shown successfully in the view, but i got Trying to get property of non-object when i try to access property from uses table.
Here is my view:
<div class="blog-post">
<h2 class="blog-post-title">
<a href="/posts/{{$post->id}}">
{{ $post->title }}
</a>
</h2>
<p class="blog-post-meta">
{{ $post->user->name }}
{{ $post->created_at->toFormattedDateString() }}
</p>
{{ $post->body }}
</div><!-- /.blog-post -->
and here is my postscontroller:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Post;
use App\User;
use App\Http\Requests;
class PostsController extends Controller
{
//
public function __construct(){
$this->middleware('auth')->except(['index','show']);
}
public function index(){
$posts = Post::latest()->get();
return view('posts.index',compact('posts'));
}
public function show($id){
$post = Post::find($id);
return view('posts.show',compact('post'));
}
public function create(){
return view('posts.create');
}
public function store(){
$this->validate(request(), [
'title' => 'required',
'body' => 'required'
]);
Post::create([
'title' => request('title'),
'body' => request('body'),
'user_id' => auth()->id()
]);
// $post = new Post;
// $post->user_id = auth()->id()
// $post->title = request('title');
// $post->body = request('body');
// $post->save();
return redirect('/');
}
}
here is the post model:
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
//
protected $fillable = ['title','body','user_id'];
public function user()
{
return $this->belongsTo(User::class);
}
public function comments(){
return $this->hasMany(Comment::class);
}
}
user model:
<?php
namespace App;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'password', 'remember_token',
];
public function posts(){
return $this->hasMany(Post::class);
}
}

Answer 1

As you have said, you are getting this error while accessing user's property through post. That means your $post->user is null or its not an object but array(which has less possibility).
The higher possibility is null issue. Have you checked it? I would prefer you use {{$post->user->name ?? ''}}(supported only in php 7) while showing user's name in view. Which means if $post->user->name is not set then show nothing.
Check if $post->user is null or not. If it is null for any post then the question is, why $post->user can be null? What are the possible causes?
Possible Causes of $post->user to be null are:
Relation is not built correctly. Make sure your posts table has a user_id column as your relationship is defined.
In posts table the user_id is nullable and for for that certain post user_id is null.
The user_id of that post is linked to a non-exist user. And this can be restrict using foreign constrain.