i create favourites,but i have a problem. favourites migration

$table->integer('user_id');
$table->integer('favouriteable_id');
$table->string('favouriteable_type');

Favourite.php

protected $fillable = ['user_id'];
public function favouriteable()
{
 return $this->morphTo();
}

Post.php

    public function favourite()
    {
        return $this->morphOne(Favourite::class, 'favouriteable');
    }
    public function checkFavourites()
    {
            return $this->favourite->count() && auth()->user()->id == $this->favourite->user_id;
    }

view file

@auth
                    <form action="{{route('add-favorites', $data->id)}}" method="post">
                        @csrf
                        <button
                            >
                            <i ></i>
                        </button>
                    </form>
                @else
                    <a href="/login">
                        <button >
                            <i ></i>
                        </button>
                    </a>
                @endif

it,s work but problem this here.If a post is added to the favorites by the user, there is no problem and it works, otherwise I get this error

Attempt to read property "user_id" on null

CodePudding user response：

In your Post.php Model

public function checkFavourites()
    {
        if($this->favourite) {
            return $this->favourite->count() && auth()->user()->id == $this->favourite->user_id;
        }
    }

CodePudding user response：

Attempt to read property "user_id" on null because there is no $this->favourite record, its returing null.

in this case $this->favourite === null