public async Task <SearchInGroupResult> SearchInGroupAsync(FeedFilter filter)
{
var groupOfSearch = await _feedRepository.GetInGroupAsync(filter);
var createdByIds = groupOfSearch.Articles.Select(x => x.CreatedById)
.Concat(groupOfSearch.Products.Select(x => x.CreatedById))
.Concat(groupOfSearch.Farms.Select(x => x.CreatedById)).Distinct();
var createdByPictures = await _userPhotoRepository.GetUserPhotoByUserIdsAsync(createdByIds, UserPictureType.Avatar);
var createdByUsers = await _userRepository.GetNameByIdsAsync(createdByIds);
await SetPicturesForSearchResultAsync(groupOfSearch, createdByUsers, createdByPictures);
return(groupOfSearch);
}