/**
  *    Admin can set calendar permissions for all users
  */
 public function actionUserCalendarPermissions()
 {
     if (isset($_POST['user-id'])) {
         $id = $_POST['user-id'];
         // clear old permissions
         X2CalendarPermissions::model()->deleteAllByAttributes(array('user_id' => $id));
         $viewPermission = array();
         $editPermission = array();
         // $_POST['view-permission'] won't be set if no user has view permission
         if (isset($_POST['view-permission'])) {
             // any users have permssion to view this user's calendar?
             $viewPermission = $_POST['view-permission'];
         }
         if (isset($_POST['edit-permission'])) {
             // any users have permssion to edit this user's calendar?
             $editPermission = $_POST['edit-permission'];
         }
         $users = User::model()->findAll(array('select' => 'id'));
         foreach ($users as $user) {
             $view = in_array($user->id, $viewPermission);
             $edit = in_array($user->id, $editPermission);
             $permission = new X2CalendarPermissions();
             $permission->user_id = $id;
             $permission->other_user_id = $user->id;
             $permission->view = $view;
             $permission->edit = $edit;
             $permission->save();
         }
     }
     if (isset($_GET['id'])) {
         $this->render('userCalendarPermissions', array('id' => $_GET['id']));
     } else {
         $this->render('userCalendarPermissions');
     }
 }