return redirect(url('users_groups'))

    def delete(self, id):

        """DELETE /users_groups/id: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('users_group', id=ID),

        #           method='delete')

        # url('users_group', id=ID)

    def show(self, id, format='html'):

        """GET /users_groups/id: Show a specific item"""

        # url('users_group', id=ID)

    def edit(self, id, format='html'):

        """GET /users_groups/id/edit: Form to edit an existing item"""

        # url('edit_users_group', id=ID)

        c.users_group = self.sa.query(UsersGroup).get(id)

        if not c.users_group:

            return redirect(url('users_groups'))

                        for u_id in set(v):

                            members_list.append(UsersGroupMember(users_group_id,

                                                             u_id))

                    setattr(users_group, 'members', members_list)

                setattr(users_group, k, v)

            self.sa.add(users_group)

            self.sa.commit()

        except:

            log.error(traceback.format_exc())

            self.sa.rollback()

            raise