Laravel Eloquent select in with empty

Question

my relation in User Model

public function fullName()
{
    return $this->hasOne(UserProfile::class,'user_id','id')->where('slug', '=', 'full_name');
}

$user = User::query()with('fullName:slug')->get();

my result:

'full_name' => null

Answer 1

I suggest you to see the docs

When using this feature, you should always include the id column and any relevant foreign key columns in the list of columns you wish to retrieve.

$user = User::query()->with('fullName:id,slug')->get();