/** * Signs user up. * * @return User|null the saved model or null if saving fails */ public function signup() { if ($this->validate()) { $user = new User(); $user->id = 1 + User::findCountUsers(); $user->username = $this->username; $user->email = $this->email; $user->password = $this->password; // if ($user->save()) { // return $user; //} if ($user->save_to_file()) { return $user; } } return null; }