public function postBuy($lang = 'id')
 {
     $product = Product::find(Input::get('product_id'));
     if (!$product) {
         return Redirect::route('site.product', array('lang' => $lang));
     }
     $validator = Validator::make(array('Captcha' => Input::get('g-recaptcha-response'), 'Name' => Input::get('name'), 'Email' => Input::get('email'), 'Phone' => Input::get('phone'), 'Address' => Input::get('address')), array('Captcha' => 'required|captcha', 'Name' => 'required', 'Email' => 'required', 'Phone' => 'required', 'Address' => 'required'));
     if ($validator->fails()) {
         return Redirect::route('site.product.buy', array('lang' => $lang, 'slug' => $product->slug))->withErrors($validator->errors());
     }
     $contact = new ProductOrder();
     $contact->name = Input::get('name');
     $contact->email = Input::get('email');
     $contact->phone = Input::get('phone');
     $contact->address = Input::get('address');
     $contact->message = Input::get('message');
     $contact->product_id = $product->id;
     $contact->product_name = $product->name_id;
     if ($lang == 'en') {
         $contact->product_name = $product->name_en;
     }
     $contact->price = $product->price;
     $contact->save();
     $email = Notification::sendEmailBuyProduct($contact);
     if (!$email) {
         Log::error('Failed sending Product Purchase email with reference ID : ' . $contact->id);
     }
     if (!$contact->id) {
         $errorMessage = "Proses gagal, coba beberapa saat lagi";
         if ($lang == 'en') {
             $errorMessage = "Process failed, please try again later";
         }
         return Redirect::route('site.product.buy', array('lang' => $lang, 'slug' => $product->slug))->with('error_message', $errorMessage);
     }
     $successMessage = "Pesanan Anda telah kami terima, kami akan segera menghubungi anda untuk proses konfirmasi";
     if ($lang == 'en') {
         $successMessage = "We have received your order, we will contact you soon for confirmation";
     }
     return Redirect::route('site.product', array('lang' => $lang))->with('success', $successMessage);
 }