/**
* add columns from filter
*
* @param array $_colsToFetch
* @param Tinebase_Model_Filter_FilterGroup $_filter
* @return array
*/
protected function _addFilterColumns($_colsToFetch, Tinebase_Model_Filter_FilterGroup $_filter)
{
// need to ask filter if it needs additional columns
$filterCols = $_filter->getRequiredColumnsForSelect();
foreach ($filterCols as $key => $filterCol) {
if (!(isset($_colsToFetch[$key]) || array_key_exists($key, $_colsToFetch))) {
$_colsToFetch[$key] = $filterCol;
}
}
return $_colsToFetch;
}
