private async Task UpdateRating(UpdatingOperation updatingInfo,
VoteChangeViewModel voteChange)
{
var votesAmountToAdd = GetVotesAmountToAdd(voteChange);
await Collection.UpdateOneAsync(updatingInfo.Filter,
UpdateBuilder.Inc(updatingInfo.ModelHierarchy + "." + nameof(IVotable.Rating).ToLower(),
votesAmountToAdd),
updatingInfo.Options);
}
public async Task Vote(UserVoteViewModel voteInfo)
{
var updateInfo = new UpdatingOperation(voteInfo.SubwebbitId, voteInfo.ThreadId);
if (!string.IsNullOrWhiteSpace(voteInfo.ParentCommentId))
{
updateInfo.AddNestedCommentFilter(ObjectId.Parse(voteInfo.ParentCommentId));
}
if (!string.IsNullOrWhiteSpace(voteInfo.CommentId))
{
updateInfo.AddNestedCommentFilter(ObjectId.Parse(voteInfo.CommentId));
}
await UpdateRating(updateInfo, voteInfo.VoteChange);
await UpdateUserInVotersLists(updateInfo, voteInfo.VoteChange);
}
private async Task UpdateUserInVotersLists(UpdatingOperation updatingInfo,
VoteChangeViewModel voteChange)
{
await Collection.UpdateOneAsync(updatingInfo.Filter,
UpdateBuilder.Pull(updatingInfo.ModelHierarchy + "." + nameof(IVotable.Upvoters).ToLower(), UserId),
updatingInfo.Options);
await Collection.UpdateOneAsync(updatingInfo.Filter,
UpdateBuilder.Pull(updatingInfo.ModelHierarchy + "." + nameof(IVotable.Downvoters).ToLower(), UserId),
updatingInfo.Options);
if (voteChange.NewDirection != voteChange.PreviousDirection)
{
await Collection.UpdateOneAsync(updatingInfo.Filter,
UpdateBuilder.AddToSet(updatingInfo.ModelHierarchy + "." + GetVotersListName(voteChange.NewDirection).ToLower(), UserId),
updatingInfo.Options);
}
}