how can i fix "Trying to get property of non-object" - php

Question

i have a favorite list in my website for the users and they can add their favorite house to the wishlist
it goes well but he can not see the wishlist page and an error comes like this:
Trying to get property 'image' of non-object
it's my relations
class Home extends Model
{
protected $guarded = [];
public function favorite()
{
return $this->hasMany(favorite::class,'house_id');
}
}
class favorite extends Model
{
protected $guarded = [];
public function house()
{
return $this->belongsTo(home::class);
}
}
my index function in controller:
public function index()
{
$favorite = favorite::where('user_id',auth()->user()->id)->get();
return view('favorite.index',compact('favorite'));
}
my index:
#foreach($favorite as $fav)
<tr>
<td>
<a href="property-detail.html"><img src="{{$fav->home->image}}" alt=""
width="100"></a>
</td>
<td>{{$fav->home->title}}</td>
<td>خانه خانواده</td>
<td>اجاره</td>
<td>
<div class="price"><span>{{number_format($fav->home->price)}}</span><strong>تومان</strong>
</div>
</td>
<td>
<i class="fa fa-ban"></i> <span>حذف</span>
</td>
</tr>
#endforeach

Answer 1

First thing that your favorite model doesn't have home relation your relation is house and when you want to get its value you can use optional helper function like this:
optional($fav->house)->title

Answer 2

You are trying to access a relationship with a wrong name. You defined the relationship with name house:
public function house(){
return $this->belongsTo(home::class);
}
So you need to use this name to access:
#foreach($favorite as $fav)
<tr>
<td>
<img src="{{$fav->house->image}}" alt="" width="100">
</td>
<td>{{$fav->house->title}}</td>
<td>خانه خانواده</td>
<td>اجاره</td>
<td>
<div class="price"><span>{{number_format($fav->house->price)}}</span><strong>تومان</strong>
</div>
</td>
<td>
<i class="fa fa-ban"></i> <span>حذف</span>
</td>
</tr>
#endforeach
But you will have a problem too if the house relation come null. To avoid you can use the solution proposed by #Mohammed Aktaa:
optional($fav->house)->title