Challenge with Laravel 5.4 Eloquent Relationships

I have come across a challenge with Eloquent Relationships that I need help with. I have two models, User (pre-existing in Laravel) and Role (which I created). In the migration for these models, I added role_id as an additional column because I want every user to have a role. To retrieve a user's role based on their id, I created a public function called roles inside the User Model.

    public function roles(){
        return $this->belongsTo(Role::class);
    }

When I attempt to run the query like this:

  App\User::find(1)->roles;

No results are returned - just an empty screen. But when I change it to:

    public function role(){
        return $this->belongsTo(Role::class);
    }

and then run the code:

  App\User::find(1)->role;

It successfully returns the exact row where the user with id 1 has the correct role assigned. It's puzzling why the roles() function does not work, but the role() function does.

If this question has already been addressed elsewhere, please direct me to that information.

Thank You!

Answer №1

It is important to define the foreign key

public function roles()
{
    return $this->belongsTo(Role::class, 'role_id');
}

Although naming it role() may be more precise as it implies that a User can have only one role.

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