/**
  * Get employee list after sorting and filtering using given parameters.
  *
  * @param EmployeeSearchParameterHolder $parameterHolder
  */
 public function searchEmployees(EmployeeSearchParameterHolder $parameterHolder)
 {
     $sortField = $parameterHolder->getOrderField();
     $sortOrder = $parameterHolder->getOrderBy();
     $offset = $parameterHolder->getOffset();
     $limit = $parameterHolder->getLimit();
     $filters = $parameterHolder->getFilters();
     $returnType = $parameterHolder->getReturnType();
     $select = '';
     $query = '';
     $bindParams = array();
     $orderBy = '';
     $this->_getEmployeeListQuery($select, $query, $bindParams, $orderBy, $sortField, $sortOrder, $filters);
     $completeQuery = $select . ' ' . $query . ' ' . $orderBy;
     if (!is_null($offset) && !is_null($limit)) {
         $completeQuery .= ' LIMIT ' . $offset . ', ' . $limit;
     }
     if (sfConfig::get('sf_logging_enabled')) {
         $msg = $completeQuery;
         if (count($bindParams) > 0) {
             $msg .= ' (' . implode(',', $bindParams) . ')';
         }
         sfContext::getInstance()->getLogger()->info($msg);
     }
     $conn = Doctrine_Manager::connection();
     $statement = $conn->prepare($completeQuery);
     $result = $statement->execute($bindParams);
     if ($returnType == EmployeeSearchParameterHolder::RETURN_TYPE_OBJECT) {
         $employees = new Doctrine_Collection(Doctrine::getTable('Employee'));
         if ($result) {
             while ($row = $statement->fetch()) {
                 $employee = new Employee();
                 $employee->setEmpNumber($row['empNumber']);
                 $employee->setEmployeeId($row['employeeId']);
                 $employee->setFirstName($row['firstName']);
                 $employee->setMiddleName($row['middleName']);
                 $employee->setLastName($row['lastName']);
                 $employee->setTerminationId($row['terminationId']);
                 $jobTitle = new JobTitle();
                 $jobTitle->setId($row['jobTitleId']);
                 $jobTitle->setJobTitleName($row['jobTitle']);
                 $jobTitle->setIsDeleted($row['isDeleted']);
                 $employee->setJobTitle($jobTitle);
                 $employeeStatus = new EmploymentStatus();
                 $employeeStatus->setId($row['employeeStatusId']);
                 $employeeStatus->setName($row['employeeStatus']);
                 $employee->setEmployeeStatus($employeeStatus);
                 $workStation = new SubUnit();
                 $workStation->setName($row['subDivision']);
                 $workStation->setId($row['subDivisionId']);
                 $employee->setSubDivision($workStation);
                 $supervisorList = isset($row['supervisors']) ? $row['supervisors'] : '';
                 if (!empty($supervisorList)) {
                     $supervisors = new Doctrine_Collection(Doctrine::getTable('Employee'));
                     $supervisorArray = explode(',', $supervisorList);
                     foreach ($supervisorArray as $supervisor) {
                         list($first, $middle, $last) = explode('##', $supervisor);
                         $supervisor = new Employee();
                         $supervisor->setFirstName($first);
                         $supervisor->setMiddleName($middle);
                         $supervisor->setLastName($last);
                         $employee->supervisors[] = $supervisor;
                     }
                 }
                 $locationList = $row['locationIds'];
                 if (!empty($locationList)) {
                     //                    $locations = new Doctrine_Collection(Doctrine::getTable('EmpLocations'));
                     $locationArray = explode(',', $locationList);
                     foreach ($locationArray as $location) {
                         list($id, $name) = explode('##', $location);
                         $empLocation = new Location();
                         $empLocation->setId($id);
                         $empLocation->setName($name);
                         $employee->locations[] = $empLocation;
                     }
                 }
                 $employees[] = $employee;
             }
         }
     } else {
         return $statement->fetchAll();
     }
     return $employees;
 }