How to prevent “property of non-object” error

 1// BelongsTo Default Models
 2// Let's say you have Post belonging to Author and then Blade code:
 3$post->author->name;
 4 
 5// Of course, you can prevent it like this:
 6$post->author->name ?? ''
 7// or
 8@$post->author->name
 9 
10// But you can do it on Eloquent relationship level:
11// this relation will return an empty App\Author model if no author is attached to the post
12public function author() {
13    return $this->belongsTo('App\Author')->withDefault();
14}
15// or
16public function author() {
17    return $this->belongsTo('App\Author')->withDefault([
18        'name' => 'Guest Author'
19    ]);
20}

Tip given by @coderahuljat