How to add data to related table in Auth Laravel?

Question

I use the standard mechanism authentication in Laravel 5.3 is built by command:php artisan make:auth.

So, It have created controller RegisterController with the following methods:

 protected function create(array $data)
    {

        return User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
        ]));
    }

So, I need to extend this method that to add data to related table for User table. For this I do:

 protected function create(array $data)
    {

        return User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
        ])->roles()->attach(Role::where('name', "admin"))->first());
    }

After this I get error:

FatalThrowableError in SessionGuard.php line 441:
Type error: Argument 1 passed to Illuminate\Auth\SessionGuard::login() must implement interface Illuminate\Contracts\Auth\Authenticatable, null given, called in \vendor\laravel\framework\src\Illuminate\Foundation\Auth\RegistersUsers.php on line 32

lesssugar · Accepted Answer · 2016-09-02 20:56:33Z

I didn't use Laravel's auth logic, but it looks like the user gets logged in right after they're created. To log the user in Laravel needs the User object, hence:

return User::create([
    'name' => $data['name'],
    'email' => $data['email'],
    'password' => bcrypt($data['password']),
]);

The create() method returns Model. You, however, added attach() to the return statement, and if you take a look at the API, the method returns void which eventually translates to null mentioned in the error message.

What you want to do, is something like this:

protected function create(array $data) {

    // Create the User and store the object
    $newUser = User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
    ]);

    // Add extra data
    $adminRole = Role::where('name', 'like', 'admin')->first();
    $newUser->roles()->attach($adminRole->id);

    // Return the new User object
    return $newUser;
}

Note: I assumed you have an id column in your role(s) table.

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