public function getDefaultInterventionWithScenarioVersion(EiUser $ei_user, EiProjet $ei_project, EiVersion $ei_version, Doctrine_Connection $conn = null)
 {
     if ($conn == null) {
         $conn = Doctrine_Manager::connection();
     }
     return $ei_user->getDefaultInterventionWithScenarioVersion($ei_project, $ei_version);
 }