/**
  * Returns string which must be edited by editor
  *
  * @param oxbase $oObject object whifh field will be used for editing
  * @param string $sField  name of editable field
  *
  * @return string
  */
 protected function _getEditValue($oObject, $sField)
 {
     $sEditObjectValue = '';
     if ($oObject) {
         $oDescField = $oObject->getArticleLongDesc();
         $sEditObjectValue = $this->_processEditValue($oDescField->getRawValue());
         $oDescField = new oxField($sEditObjectValue, oxField::T_RAW);
     }
     return $sEditObjectValue;
 }