public static function getConfig($appName, $modelNames = null)
 {
     $mappingDriver = new Tinebase_Record_DoctrineMappingDriver();
     if (!$modelNames) {
         $modelNames = array();
         foreach ($mappingDriver->getAllClassNames() as $modelName) {
             $modelConfig = $modelName::getConfiguration();
             if ($modelConfig->getApplName() == $appName) {
                 $modelNames[] = $modelName;
             }
         }
     }
     $tableNames = array();
     foreach ($modelNames as $modelName) {
         $modelConfig = $modelName::getConfiguration();
         if (!$mappingDriver->isTransient($modelName)) {
             throw new Setup_Exception('Model not yet doctrine2 ready');
         }
         $tableNames[] = SQL_TABLE_PREFIX . Tinebase_Helper::array_value('name', $modelConfig->getTable());
     }
     $config = Setup::createConfiguration();
     $config->setMetadataDriverImpl($mappingDriver);
     $config->setFilterSchemaAssetsExpression('/' . implode('|', $tableNames) . '/');
     return $config;
 }