public function getSiteEnvironmentAction()
    {
        $json = array();
        $siteId = (int) $this->params()->fromQuery('siteId');
        
        $melisEngineTableSiteDomain = $this->getServiceLocator()->get('MelisEngineTableSiteDomain');
        $sitePlatform = $melisEngineTableSiteDomain->getEntryByField('sdom_site_id', $siteId);
        $sitePlatform = $sitePlatform->current();
        
        $siteDomainEnv = ($sitePlatform) ? $sitePlatform->sdom_env : null;
        
        return new JsonModel(array('data' => $siteDomainEnv));
    }