/**
  * Sets sortings state on given query from backend sorting configuration
  *
  * @param Tx_PtExtlist_Domain_QueryObject_Query $query
  * @return void
  */
 protected function setSortingFromDefaultSortingOnQuery(Tx_PtExtlist_Domain_QueryObject_Query $query)
 {
     list($field, $direction) = explode(' ', $this->backendConfiguration->getDataBackendSettings('sorting'));
     $sorting = array();
     $sorting[$field] = strtoupper($direction) == 'DESC' ? Tx_PtExtlist_Domain_QueryObject_Query::SORTINGSTATE_DESC : Tx_PtExtlist_Domain_QueryObject_Query::SORTINGSTATE_ASC;
     $query->addSortingArray($sorting);
 }