/**
* The "booting" method of the model.
*
* @return void
*/
public static function boot()
{
parent::boot();
User::creating(function ($user) {
if (!$user->email) {
throw new \Exception('User model must contain a not-null email attribute');
}
if (!$user->username) {
$user->username = $user->email;
}
});
}
