public async void OnEdit(object s)
{
UserReview current = (UserReview)s;
Lecturer lect = EntityLoader.lecturers.Find(l => l.FirstName + " " + l.LastName == current.LecSubName);
if (lect != null)
{
LecturerReview review = EntityLoader.GetUserReviewsL().Find(lr => lr.LecturerId == lect.Id);
await App.Current.MainPage.Navigation.PushAsync(new AddReview(lect, review));
}
else
{
Subject sub = EntityLoader.subjects.Find(su => su.SubjectName == current.LecSubName);
SubjectReview review = EntityLoader.GetUserReviewsS().Find(sr => sr.SubjectId == sub?.Id);
await App.Current.MainPage.Navigation.PushAsync(new AddReview(sub, review));
}
}
public async void OnDelete(object s)
{
UserReview current = (UserReview)s;
bool answer = await App.Current.MainPage.DisplayAlert("", "Are you sure you want to delete your review for " + current.LecSubName + "?", "Yes", "No");
if (answer)
{
Lecturer lect = EntityLoader.lecturers.Find(l => l.FirstName + " " + l.LastName == current.LecSubName);
if (lect != null)
{
LecturerReview review = EntityLoader.GetUserReviewsL().Find(lr => lr.LecturerId == lect.Id);
try
{
EntityLoader.DeleteReview(review);
await App.Current.MainPage.Navigation.PopAsync();
}
catch (Exception ex)
{
await App.Current.MainPage.DisplayAlert("Oh no!", ex.Message, "OK");
}
}
else
{
Subject sub = EntityLoader.subjects.Find(su => su.SubjectName == current.LecSubName);
SubjectReview review = EntityLoader.GetUserReviewsS().Find(sr => sr.SubjectId == sub?.Id);
try
{
EntityLoader.DeleteReview(review);
await App.Current.MainPage.Navigation.PopAsync();
}
catch (Exception ex)
{
await App.Current.MainPage.DisplayAlert("Oh no!", ex.Message, "OK");
}
}
}
}
