public async Task <Unit> Handle(ChangeFollowSchoolingEventCommand request, CancellationToken cancellationToken)
{
//TODO: add validation
var userIdThatWantsToChangeFollowStatus = request.UserId;
var eventEntity = await _schoolingEventRepository.GetById(request.EventId);
var follower = eventEntity.Followers.FirstOrDefault(f => f.UserId == userIdThatWantsToChangeFollowStatus);
if (request.IsFollowing && follower == null)
{
await _schoolingEventFollowerRepository.Add(new SchoolingEventFollower()
{
UserId = userIdThatWantsToChangeFollowStatus,
EventId = eventEntity.Id
});
if (await Commit())
{
//TODO: rise event
}
}
else if (!request.IsFollowing && follower != null)
{
await _schoolingEventFollowerRepository.Remove(follower.Id);
if (await Commit())
{
//TODO: rise event
}
}
return(Unit.Value);
}
public async Task <FeaturedSchoolingEventViewModel> GetById(Guid id)
{
var entity = await _schoolingEventRepository.GetById(id);
if (entity == null)
{
await _bus.RaiseEvent(new DomainNotification("GetById", $"Event with id {id} doesn't exist"));
return(null);
}
var vm = Mapper.Map <FeaturedSchoolingEventViewModel>(entity);
if (_user.IsAuthenticated())
{
var currentUserId = _user.Id;
vm.IsFollowing = await _schoolingEventRepository.IsUserFollowingEvent(currentUserId, entity.Id);
vm.HasCreated = vm.CreatedByUserId == _user.Id;
}
return(vm);
}