ControllerExtensionPaymentKlarnaCheckout::validate PHP Метод

    protected function validate()
    {
        $this->load->model('extension/payment/klarna_checkout');
        $this->load->model('localisation/geo_zone');
        if (version_compare(phpversion(), '5.4.0', '<')) {
            $this->error['warning'] = $this->language->get('error_php_version');
        }
        if (!$this->user->hasPermission('modify', 'extension/payment/klarna_checkout')) {
            $this->error['warning'] = $this->language->get('error_permission');
        }
        if (!$this->config->get('config_secure')) {
            $this->error['warning'] = $this->language->get('error_ssl');
        }
        if (empty($this->request->post['klarna_checkout_account'])) {
            $this->error['account_warning'] = $this->language->get('error_account_minimum');
        } else {
            $currencies = array();
            foreach ($this->request->post['klarna_checkout_account'] as $key => $account) {
                if (in_array($account['currency'], $currencies)) {
                    $this->error['account_warning'] = $this->language->get('error_account_currency');
                    break;
                } else {
                    $currencies[] = $account['currency'];
                }
                if (!$account['merchant_id']) {
                    $this->error['account'][$key]['merchant_id'] = $this->language->get('error_merchant_id');
                }
                if (!$account['secret']) {
                    $this->error['account'][$key]['secret'] = $this->language->get('error_secret');
                }
                if (!$account['locale']) {
                    $this->error['account'][$key]['locale'] = $this->language->get('error_locale');
                }
            }
        }
        if ($this->error && !isset($this->error['warning'])) {
            $this->error['warning'] = $this->language->get('error_warning');
        }
        return !$this->error;
    }