public function managebrowsersAction()
 {
     try {
         $projectId = $this->getRequest_ProjectID();
         $planId = $this->getRequest_ID();
         $this->getAcl()->checkAvailable(Model_ACL::TASK_QA_TEST_PLAN_EDIT, $projectId);
         /** @var $m Model_DBMapper_ApplicationMapper */
         $m = Model_DBMapper_ApplicationMapper::get_instance();
         $o = $m->find($projectId);
         if (!isset($o)) {
             throw new Exception('There is no such Application');
         }
         /** @var $m Model_DBMapper_TestPlanMapper */
         $m = Model_DBMapper_TestPlanMapper::get_instance();
         $o = $m->find($planId);
         if (!isset($o)) {
             throw new Exception('There is no such Test Plan');
         }
         $browsersAssigned = $m->findDependentBrowsers($planId);
         /** @var $m Model_DBMapper_BrowserMapper */
         $m = Model_DBMapper_BrowserMapper::get_instance();
         $browsersNotAssigned = $m->fetchAll_NotAssignedOnTestPlan($planId);
         $this->view->assign("browsersAssigned", $browsersAssigned);
         $this->view->assign("browsersNotAssigned", $browsersNotAssigned);
     } catch (Exception $ex) {
         echo $ex->getMessage();
     }
 }
 protected function getBrowserMapper()
 {
     if (null === $this->_browser_mapper) {
         $this->setBrowserMapper(Model_DBMapper_BrowserMapper::get_instance());
     }
     return $this->_browser_mapper;
 }