public function sendToCustomer($customerId)
 {
     $customer = Customer::findOrFail($customerId);
     $message = Input::get('message');
     if (trim($message)) {
         if ($customer->phone) {
             \Sms::send_sms($customer->phone, $message);
         }
     }
     if (!\Sms::error()) {
         \Session::flash('success', 'Sms sent!');
     } else {
         \Session::flash('error', 'Failed!');
     }
     return \Redirect::back();
 }