public async Task SubmitUserRating(Comment comment, int score) {
IsPending = true;
ErrorMessage = null;
// Check if the user already rated the comment
var existingRating = comment.UserRatings.Where(x => x.UniqueUser == GetDeviceId()).FirstOrDefault();
// If already rated, update to the new score
if (existingRating != null) {
//Case for pressing the opposite vote button -- change rating to it
if (existingRating.Score != score){
existingRating.Score = score;
}
// Case for pressing the same vote button -- simply a score of 0
else {
existingRating.Score = 0;
}
try { await userTable.UpdateAsync(existingRating); }
catch (Exception e) { ErrorMessage = e.Message; }
}
// Create a new rating otherwise
else{
var newRating = new UserRating()
{
Score = score,
UniqueUser = GetDeviceId(),
Id = Guid.NewGuid().ToString(),
CommentId = comment.Id,
};
// Update the comment
comment.UserRatings.Add(newRating);
try { await userTable.InsertAsync(newRating); }
catch (Exception e) { ErrorMessage = e.Message; }
}
try
{
var updatedComment = await commentTable.LookupAsync(comment.Id);
comment.Score = updatedComment.Score;
comment.UserRatings = updatedComment.UserRatings;
}
catch (MobileServicePreconditionFailedException ex)
{
ErrorMessage = ex.Message;
}
// Server conflict
catch (MobileServiceInvalidOperationException ex1)
{
ErrorMessage = ex1.Message;
}
catch (HttpRequestException ex2)
{
ErrorMessage = ex2.Message;
}
finally
{
IsPending = false;
}
}
public async Task<Comment> SubmitCommentAsync(String text, String name, PageEnum.CommentPage type)
{
IsPending = true;
ErrorMessage = null;
// Create the new comment
var comment = new Comment()
{
Score = 0,
Text = text,
User = name,
Page = type,
ChampionFeedbackName = ChampionFeedback.Name,
ChampionFeedbackId = ChampionFeedback.Id,
Id = Guid.NewGuid().ToString(),
};
try
{
this.ChampionFeedback.Comments.Add(comment);
await commentTable.InsertAsync(comment);
return comment;
}
catch (MobileServiceInvalidOperationException ex)
{
ErrorMessage = ex.Message;
return null;
}
catch (HttpRequestException ex2)
{
ErrorMessage = ex2.Message;
return null;
}
finally
{
IsPending = false;
}
}