public function executePermissions(sfWebRequest $request)
 {
     $module = 'sfGuardUser';
     if (!in_array($module, array_keys(sfPlop::getSafePluginModules()))) {
         $this->redirect('@sf_plop_dashboard');
     }
     if ($request->isMethod(sfRequest::POST)) {
         if ($request->isXmlHttpRequest()) {
             $this->setTemplate('ajaxPermissions');
             $this->setLayout(false);
         }
         $group_id = $request->getParameter('g');
         $user_id = $request->getParameter('u');
         $permission_id = $request->getParameter('p');
         if ($group_id) {
             $group_exists = sfPlopGuard::groupExists($group_id);
             if (!$group_exists && $request->isXmlHttpRequest()) {
                 return sfView::ERROR;
             } else {
                 if (!$group_exists) {
                     $this->redirect('@sf_plop_dashboard_permissions');
                 }
             }
         }
         if ($user_id) {
             $user_exists = sfPlopGuard::userExists($user_id);
             if (!$user_exists && $request->isXmlHttpRequest()) {
                 return sfView::ERROR;
             } else {
                 if (!$user_exists) {
                     $this->redirect('@sf_plop_dashboard_permissions');
                 }
             }
         }
         if (isset($group_exists) && isset($user_exists)) {
             $user_group = sfGuardUserGroupPeer::retrieveByPK($user_id, $group_id);
             if ($user_group) {
                 $user_group->delete();
             } else {
                 $user_group = new sfGuardUsergroup();
                 $user_group->setUserId($user_id);
                 $user_group->setGroupId($group_id);
                 $user_group->save();
                 $this->getResponse()->setStatusCode(201);
             }
         }
         if ($permission_id) {
             if ($permission_id == 'super') {
                 if (!sfPlopGuard::isLastSuperAdminUser($user_id)) {
                     $user = sfGuardUserPeer::retrieveByPK($user_id);
                     if ($user->getIsSuperAdmin()) {
                         $user->setIsSuperAdmin(false);
                     } else {
                         $user->setIsSuperAdmin(true);
                     }
                     $user->save();
                 } else {
                     $this->getResponse()->setStatusCode(202);
                     return sfView::ERROR;
                 }
             } else {
                 if (!is_int($permission_id)) {
                     $permission_exists = sfPlopGuard::permissionExists($permission_id);
                     if (!$permission_exists) {
                         $modules = sfPlop::getSafePluginModules();
                         if ($request->isXmlHttpRequest() && !isset($modules[$permission_id])) {
                             return sfView::ERROR;
                         } elseif (!isset($modules[$permission_id])) {
                             $this->redirect('@sf_plop_dashboard_permissions');
                         } else {
                             $module = $modules[$permission_id];
                         }
                         $permission = new sfGuardPermission();
                         $permission->setName($permission_id);
                         $permission->setDescription($module['name']);
                         $permission->save();
                         $permission_id = $permission->getId();
                         $this->getResponse()->setStatusCode(201);
                     } else {
                         $permission_id = sfPlopGuard::getPermission($permission_id)->getId();
                     }
                 } else {
                     $permission_exists = sfPlopGuard::permissionExists($permission_id);
                     if (!$permission_exists && $request->isXmlHttpRequest()) {
                         return sfView::ERROR;
                     } else {
                         if (!$permission_exists) {
                             $this->redirect('@sf_plop_dashboard_permissions');
                         }
                     }
                 }
                 if (isset($user_exists)) {
                     $user_permission = sfGuardUserPermissionPeer::retrieveByPK($user_id, $permission_id);
                     if ($user_permission) {
                         $user_permission->delete();
                     } else {
                         $user_permission = new sfGuardUserPermission();
                         $user_permission->setUserId($user_id);
                         $user_permission->setPermissionId($permission_id);
                         $user_permission->save();
                         $this->getResponse()->setStatusCode(201);
                     }
                 } elseif (isset($group_exists)) {
                     $group_permission = sfGuardGroupPermissionPeer::retrieveByPK($group_id, $permission_id);
                     if ($group_permission) {
                         $group_permission->delete();
                     } else {
                         $group_permission = new sfGuardGroupPermission();
                         $group_permission->setGroupId($group_id);
                         $group_permission->setPermissionId($permission_id);
                         $group_permission->save();
                         $this->getResponse()->setStatusCode(201);
                     }
                 }
             }
         }
         if (!$request->isXmlHttpRequest()) {
             $this->redirect('@sf_plop_dashboard_permissions');
         }
     }
     $this->groups = sfPlopGuard::getAllGroups();
     $this->users = sfPlopGuard::getAllUsers();
     $this->permissions = sfPlopGuard::getAllPermissions();
 }