/**
  * 
  * @param type $id
  * @return string
  */
 public function policyHistoryGrid($id)
 {
     $sort_order = 'DESC';
     $sort_field = 'b.id';
     $perPage = 100;
     $pageNo = 1;
     $searchData = '';
     $where = '';
     $searchQuery = 'policyid = ' . $id;
     $searchArray = array();
     $data = array();
     $objName = 'policies';
     $tableFields = array('policyid' => '#', 'policyname' => 'Policy Name', 'policygroup' => 'Group', 'policylastupdateby' => 'Updated By', 'policylastupdatedon' => 'Updated On');
     $policiesModel = new Default_Model_Policies();
     $tablecontent = $policiesModel->getPolicyHistory($sort_order, $sort_field, $pageNo, $perPage, $searchQuery);
     $dataTmp = array('sort' => $sort_order, 'by' => $sort_field, 'pageNo' => $pageNo, 'perPage' => $perPage, 'tablecontent' => $tablecontent, 'menuName' => 'Policies', 'objectname' => $objName, 'tableheader' => $tableFields);
     return $dataTmp;
 }