public Task SaveCafeReview(Review review)
{
var reviewTable = this.serviceClient.GetTable<Review>();
if (review.Id == null)
{
review.Id = Guid.NewGuid().ToString();
return reviewTable.InsertAsync(review);
}
return reviewTable.UpdateAsync(review);
}
public async Task SaveCafeReview(Review review)
{
var cafe = this.Cafes.Single(c => c.Id == review.CafeId);
if (!this.Reviews.ContainsKey(cafe))
{
this.Reviews.Add(cafe, new List<Review>());
}
else
{
var existingReview = this.Reviews[cafe].FirstOrDefault(r => r.Id == review.Id);
if (existingReview != null)
{
this.Reviews[cafe].Remove(existingReview);
}
}
this.Reviews[cafe].Add(review);
cafe.NumberOfVotes = this.Reviews[cafe].Count(r => r.CoffeeRating.HasValue || r.AtmosphereRating.HasValue);
cafe.CoffeeRating = this.Reviews[cafe].Average(r => r.CoffeeRating.HasValue ? r.CoffeeRating.Value : 0);
cafe.AtmosphereRating = this.Reviews[cafe].Average(r => r.AtmosphereRating.HasValue ? r.AtmosphereRating.Value : 0);
}
private ReviewViewModel CreateReviewViewModel(Review model)
{
var viewModel = new ReviewViewModel(this.dataService, this.identityService);
viewModel.Initialize(model);
return viewModel;
}
public void Initialize(Review review = null)
{
this.Set(ref this.comment, review != null ? review.Comment : null);
this.Set(ref this.coffeeRating, review != null ? review.CoffeeRating : null);
this.Set(ref this.atmosphereRating, review != null ? review.AtmosphereRating : null);
this.reviewId = review != null ? review.Id : null;
this.SubmittedBy = review != null ? review.SubmittedBy : null;
this.SubmittedDate = review != null ? review.SubmittedDate : (DateTime?) null;
this.isDirty = false;
this.Submit.RaiseCanExecuteChanged();
}
public ReviewSubmittedEventArgs(Review review)
{
this.Review = review;
}
private async void OnSubmitExecuted()
{
if (!this.identityService.IsAuthenticated)
{
if (!await this.identityService.AuthenticateAsync())
{
return;
}
}
if (!this.CanExecuteSubmit())
{
return;
}
if (this.comment != null)
{
var formatted = this.comment.Trim();
formatted = formatted.Length > 0 ? formatted : null;
this.comment = formatted;
this.RaisePropertyChanged(() => this.Comment);
}
var review = new Review
{
Id = this.reviewId,
CafeId = this.associatedCafe.Id,
Comment = this.comment,
SubmittedBy = this.identityService.CurrentUserId
};
if (this.coffeeRating.HasValue)
{
review.CoffeeRating = this.coffeeRating.Value;
}
if (this.atmosphereRating.HasValue)
{
review.AtmosphereRating = this.atmosphereRating.Value;
}
this.isDirty = false;
this.Submit.RaiseCanExecuteChanged();
if (review.Comment == null && review.CoffeeRating == null && review.AtmosphereRating == null)
{
return;
}
await this.dataService.SaveCafeReview(review);
this.reviewId = review.Id;
this.SubmittedBy = review.SubmittedBy;
this.SubmittedDate = review.SubmittedDate;
if (this.ReviewSubmitted != null)
{
this.ReviewSubmitted(this, new ReviewSubmittedEventArgs(review));
}
}
public async Task SaveCafeReview(Review review)
{
var cafe = AllCafes.First(c => c.Id == review.CafeId);
var reviews = CafeReviews[cafe].Where(rev => rev.SubmittedBy != review.SubmittedBy).ToList();
reviews.Insert(0, review);
CafeReviews[cafe] = reviews;
}