OpenCart 🇺🇦

if (!$this->user->hasPermission('modify', 'localisation/language')) {
	$this->error['warning'] = $this->language->get('error_permission');
} 

$this->load->model('setting/store');
$this->load->model('sale/order');

foreach ($this->request->post['selected'] as $language_id) {
	$language_info = $this->model_localisation_language->getLanguage($language_id);

	if ($language_info) {
		if ($this->config->get('config_language') == $language_info['code']) {
			$this->error['warning'] = $this->language->get('error_default');
		}

		if ($this->config->get('config_admin_language') == $language_info['code']) {
			$this->error['warning'] = $this->language->get('error_admin');
		}	

		$store_total = $this->model_setting_store->getTotalStoresByLanguage($language_info['code']);

		if ($store_total) {
			$this->error['warning'] = sprintf($this->language->get('error_store'), $store_total);
		}
	}

	$order_total = $this->model_sale_order->getTotalOrdersByLanguageId($language_id);

	if ($order_total) {
		$this->error['warning'] = sprintf($this->language->get('error_order'), $order_total);
	}		
}

if (!$this->error) {
	return true;
} else {
	return false;
}