public void AddTagsToPlace(string placeId, IEnumerable <string> tagsIds) { var placeModel = _placeRepository.Find(p => p.Id == placeId).First(); placeModel.PlaceTags = new List <PlaceTag>(); foreach (var tagId in tagsIds) { placeModel.PlaceTags.Add(new PlaceTag() { PlaceId = placeId, TagId = tagId }); } _placeRepository.Update(placeModel); }