public function loginDoctor()
 {
     $username = Input::get('user');
     $password = Input::get('pass');
     $token = Input::get('token');
     try {
         if (str_contains($username, '@')) {
             Config::set('cartalyst/sentry::users.login_attribute', 'email');
             $input = array('email' => $username, 'password' => $password);
         } else {
             Config::set('cartalyst/sentry::users.login_attribute', 'username');
             $input = array('username' => $username, 'password' => $password);
         }
         Sentry::authenticate($input, Input::has('remember'));
         $user = Sentry::getUser();
         $doctor = Doctor::where('user_id', $user->id)->first();
         $clinic = Clinic::where('user_id', $user->id)->first();
         if ($doctor) {
             $token = Helpers::createTokenUser($user->id);
             $mgs = array('access' => 'ok', 'token' => $token, 'doctor_id' => $doctor->id, 'name_full' => $user->first_name . " " . $user->last_name);
             return Helpers::Mgs($mgs);
         } else {
             if ($clinic) {
                 $token = Helpers::createTokenUser($user->id);
                 $mgs = array('access' => 'ok', 'token' => $token, 'clinic_id' => $clinic->id);
                 return Helpers::Mgs($mgs);
             } else {
                 return Helpers::Mgs("Doctor not found.");
             }
         }
     } catch (\Cartalyst\Sentry\Users\LoginRequiredException $e) {
         return Helpers::Mgs("Login field is required.");
     } catch (\Cartalyst\Sentry\Users\PasswordRequiredException $e) {
         return Helpers::Mgs("Password field is required.");
     } catch (\Cartalyst\Sentry\Users\UserNotFoundException $e) {
         return Helpers::Mgs("User not found.");
     } catch (\Cartalyst\Sentry\Users\UserNotActivatedException $e) {
         return Helpers::Mgs("User not activated.");
     } catch (\Cartalyst\Sentry\Throttling\UserSuspendedException $e) {
         $time = $throttle->getSuspensionTime();
         return Helpers::Mgs("User is suspended for [{$time}] minutes.");
     } catch (\Cartalyst\Sentry\Throttling\UserBannedException $e) {
         return Helpers::Mgs("User is banned.");
     }
 }