Devise\Support\Installer\InstallWizard::validateAdminUser PHP Метод

    public function validateAdminUser($email, $username, $password)
    {
        $rules = ['email' => 'required|email', 'username' => 'required', 'password' => 'required|min:8'];
        $validator = $this->Validator->make(compact('email', 'username', 'password'), $rules);
        if ($validator->fails()) {
            $this->errors = $validator->errors();
        }
    }