/**
* Returns an array of unique identifiers to filter from the list.
*
* This will be an empty array if a repository has used this filter to do it's filtering.
*
* @param Collection $list The data list to filter.
* @return array
*/
public final function getUniqueIdentifiersToFilter(Collection $list)
{
if ($this->wasFilteredByRepository()) {
return [];
}
$list->disableRanging();
$filtered = $this->doGetUniqueIdentifiersToFilter($list);
$list->enableRanging();
return $filtered;
}
