code: protected function getChildRecords($arrParentIds, $strTable, $blnSorting=false, $arrReturn=array(), $strWhere='')
  	{
  		@trigger_error('Using Controller::getChildRecords() has been deprecated and will no longer work in Contao 5.0. Use Database::getChildRecords() instead.', E_USER_DEPRECATED);
  
  		return $this->Database->getChildRecords($arrParentIds, $strTable, $blnSorting, $arrReturn, $strWhere);
  	}
docs: Return the IDs of all child records of a particular record (see #2475)
  
  @author Andreas Schempp
  
  @param mixed   $arrParentIds An array of parent IDs
  @param string  $strTable     The table name
  @param boolean $blnSorting   True if the table has a sorting field
  @param array   $arrReturn    The array to be returned
  @param string  $strWhere     Additional WHERE condition
  
  @return array An array of child record IDs
  
  @deprecated Deprecated since Contao 4.0, to be removed in Contao 5.0.
  Use Database::getChildRecords() instead.