/**
* Searches for supervisors with name matching the search string and
* returns a comma separated list of employee numbers of their
* subordinates.
*
* @param searchStr The search string to match supervisor name with
* @return comma separated list of employee numbers or null if no match.
*/
private function _getEmpIdsWithMatchingSupervisor($searchStr)
{
$employeeNumbers = null;
$empRepTo = new EmpRepTo();
$empNumberArray = $empRepTo->getSubordinatesOfSupervisorWithName($searchStr);
if (isset($empNumberArray) && count($empNumberArray) > 0) {
$employeeNumbers = implode(',', $empNumberArray);
}
return $employeeNumbers;
}
