/**
  * Renders the map control
  *
  * @param Ivory\GoogleMapBundle\Model\Map $map
  * @param string $controlName
  * @param mixed $controlHelper
  * @return string Map control
  */
 protected function renderMapControl(Map &$map, $controlName, $controlHelper)
 {
     $mapControl = array();
     $lcFirstControlName = lcfirst($controlName);
     if ($map->hasMapOption($lcFirstControlName)) {
         if ($map->getMapOption($lcFirstControlName)) {
             $mapControl[] = sprintf('"%s":true', $lcFirstControlName);
             $hasControlMethod = 'has' . $controlName;
             if ($map->{$hasControlMethod}()) {
                 $getControlMethod = 'get' . $controlName;
                 $mapControl[] = sprintf('"%sOptions":%s', $lcFirstControlName, $controlHelper->render($map->{$getControlMethod}()));
             }
         } else {
             $mapControl[] = sprintf('"%s":false', $lcFirstControlName);
         }
         $map->removeMapOption($lcFirstControlName);
     }
     return implode(',', $mapControl);
 }