Modify existing Authorization module (email to username)

Question

I would like to modify the existing Authorization module provided by Laravel 5, instead of asking for the email it will ask for the username field

Answer 1

in controllers\auth\logincontroller add this

 protected $username = 'user_name';//user_name field name

then go to Illuminate\Foundation\Auth\AuthenticatesUsers and change

 public function username()
    {
         return 'email';//change this with "return $this->username;"
    }

with this method You can have different log in type in different controller for example in another controller controllers\admin_auth\logincontroller

protected $username = 'phone_number';