public ActionResult Edit(int groupId)
        {
            var groupDto = _groupProvider.GetById(groupId);
            var model    = MapGroupView(groupDto);

            return(View(model));
        }
        public ActionResult ForGroup(int groupId)
        {
            var model = new StatisticsView
            {
                Group            = _groupProvider.GetById(groupId),
                UsersDict        = _userProvider.GetUsersByGroup(groupId).ToDictionary(x => x.VkUserId),
                StatisticsGroups = _statisticsProvider.GetStatisticsGroupsForTargetGroup(groupId)
            };

            return(View(model));
        }