public async Task <IActionResult> Edit(int id, [Bind("ID,Title,Text,UsefulnessGrade,InterestGrade,DifficultyGrade,TotalGrade,Points,Timestamp,AuthorID,SubjectID")] SubjectReview subjectReview)
{
if (id != subjectReview.ID)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
subjectReview.TotalGrade = calculateTotalGrade(subjectReview);
_context.Update(subjectReview);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!SubjectReviewExists(subjectReview.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction("Details", new { id = subjectReview.ID }));
}
ViewData["AuthorID"] = new SelectList(_context.User, "Id", "Id", subjectReview.AuthorID);
ViewData["SubjectID"] = new SelectList(_context.Subject, "ID", "ID", subjectReview.SubjectID);
return(View(subjectReview));
}
public async Task <IActionResult> Create([Bind("Title,Text,UsefulnessGrade,InterestGrade,DifficultyGrade,Points,AuthorID,SubjectID")] SubjectReview subjectReview, List <int> tags)
{
subjectReview.TotalGrade = calculateTotalGrade(subjectReview);
subjectReview.Timestamp = DateTime.Now;
List <SubjectReviewTagSet> tagSet = new List <SubjectReviewTagSet>();
foreach (var tag in tags)
{
SubjectReviewTagSet temp = new SubjectReviewTagSet();
temp.SubjectReviewID = subjectReview.ID;
temp.SubjectReviewTagID = tag;
tagSet.Add(temp);
}
subjectReview.SubjectReviewTagSet = tagSet;
if (ModelState.IsValid)
{
_context.Add(subjectReview);
await _context.SaveChangesAsync();
return(RedirectToAction("Details", new { id = subjectReview.ID }));
}
ViewData["AuthorID"] = subjectReview.AuthorID;
ViewData["SubjectID"] = subjectReview.SubjectID;
ViewData["SubjectName"] = _context.Subject.Where(s => s.ID == subjectReview.SubjectID).Select(s => s.Name).First();
ViewData["SubjectTags"] = new SelectList(_context.SubjectReviewTag, "ID", "Name");
return(View());
}
async void SubmitEdit_Clicked(object sender, EventArgs e)
{
if (subrev)
{
SubjectReview currentReview = EntityLoader.GetUserReviewsS().Find(sr => sr.SubjectId == s.Id);
if (LectOrSubPicker.SelectedIndex != -1)
{
currentReview.LecturerId = EntityLoader.lecturers.Find(l => {
string name = l.FirstName + " " + l.LastName;
return(name == LectOrSubPicker.Items[LectOrSubPicker.SelectedIndex]);
}).Id;
}
currentReview.Rating = ScorePicker.SelectedIndex + 1;
currentReview.Comment = CommentEntry.Text;
if (AnonCheckBox.IsChecked)
{
currentReview.Anonymous = 1;
}
else
{
currentReview.Anonymous = 0;
}
EntityLoader.EditReview(currentReview);
}
else
{
LecturerReview currentReview = EntityLoader.GetUserReviewsL().Find(lr => lr.LecturerId == l.Id);
if (LectOrSubPicker.SelectedIndex != -1)
{
currentReview.LecturerId = EntityLoader.subjects.Find(s =>
s.SubjectName == LectOrSubPicker.Items[LectOrSubPicker.SelectedIndex]).Id;
}
currentReview.Rating = ScorePicker.SelectedIndex + 1;
currentReview.Comment = CommentEntry.Text;
if (AnonCheckBox.IsChecked)
{
currentReview.Anonymous = 1;
}
else
{
currentReview.Anonymous = 0;
}
EntityLoader.EditReview(currentReview);
}
await DisplayAlert("Success", "Your review was edited successfully.", "Cool!");
OnAddReview();
await Navigation.PopAsync();
}
public UserReview(SubjectReview review)
{
Subject subject = EntityLoader.subjects.Find(s => s.Id == review.SubjectId);
LecSubName = subject.SubjectName;
LecSubScore = review.Rating.ToString();
Comment = review.Comment;
EditCommand = new Command(OnEdit);
DeleteCommand = new Command(OnDelete);
}
private decimal calculateTotalGrade(SubjectReview sr)
{
int sum = 0;
decimal result = 0;
sum += sr.UsefulnessGrade;
sum += sr.InterestGrade;
sum += sr.DifficultyGrade;
result = sum / (decimal)3;
return(result);
}
public AddReview(Subject subject, SubjectReview review)
{
InitializeComponent();
var AnonLabelTapGestureRecognizer = new TapGestureRecognizer();
AnonLabelTapGestureRecognizer.Tapped += (s, e) =>
{
AnonCheckBox.IsChecked = !AnonCheckBox.IsChecked;
};
AnonLabel.GestureRecognizers.Add(AnonLabelTapGestureRecognizer);
TopTextLabel.Text = "Editing your review for: " + subject.SubjectName;
if (review.LecturerId != 0)
{
int index = 0;
foreach (Lecturer lecturer in subject.Lecturers.Value)
{
LectOrSubPicker.Items.Add(lecturer.FirstName + " " + lecturer.LastName);
if (lecturer.Id == review.LecturerId)
{
LectOrSubPicker.SelectedIndex = index;
}
index++;
}
}
else
{
LectOrSubPicker.Title = "(Optional) pick the lecturer";
foreach (Lecturer lecturer in subject.Lecturers.Value)
{
LectOrSubPicker.Items.Add(lecturer.FirstName + " " + lecturer.LastName);
}
}
ScorePicker.SelectedIndex = review.Rating - 1;
CommentEntry.Text = review.Comment;
if (review.Anonymous == 1)
{
AnonCheckBox.IsChecked = true;
}
s = subject;
Submit.Clicked -= Submit_Clicked;
Submit.Clicked += SubmitEdit_Clicked;
}
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));
}
}
async void EditReviewBtn_Clicked(object sender, EventArgs e)
{
if (subprof)
{
SubjectReview review = EntityLoader.GetUserReviewsS().Find(sr => sr.SubjectId == id);
Subject subject = EntityLoader.subjects.Find(s => s.Id == id);
var nextPage = new AddReview(subject, review);
nextPage.AddedReview += UpdateReviewList;
await Navigation.PushAsync(nextPage);
}
else
{
LecturerReview review = EntityLoader.GetUserReviewsL().Find(lr => lr.LecturerId == id);
Lecturer lecturer = EntityLoader.lecturers.Find(l => l.Id == id);
var nextPage = new AddReview(lecturer, review);
nextPage.AddedReview += UpdateReviewList;
await Navigation.PushAsync(nextPage);
}
}
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");
}
}
}
}
async void Submit_Clicked(object sender, EventArgs e)
{
if (subrev)
{
SubjectReview newReview = new SubjectReview
{
SubjectId = s.Id
};
if (LectOrSubPicker.SelectedIndex != -1)
{
newReview.LecturerId = EntityLoader.lecturers.Find(l => {
string name = l.FirstName + " " + l.LastName;
return(name == LectOrSubPicker.Items[LectOrSubPicker.SelectedIndex]);
}).Id;
}
newReview.Rating = ScorePicker.SelectedIndex + 1;
newReview.UserId = ConstVars.currentUser.Id;
newReview.Comment = CommentEntry.Text;
if (AnonCheckBox.IsChecked)
{
newReview.Anonymous = 1;
}
else
{
newReview.Anonymous = 0;
}
EntityLoader.AddReview(newReview);
}
else
{
LecturerReview newReview = new LecturerReview
{
LecturerId = l.Id
};
if (LectOrSubPicker.SelectedIndex != -1)
{
newReview.SubjectId = EntityLoader.subjects.Find(s =>
s.SubjectName == LectOrSubPicker.Items[LectOrSubPicker.SelectedIndex]).Id;
}
newReview.Rating = ScorePicker.SelectedIndex + 1;
newReview.UserId = ConstVars.currentUser.Id;
newReview.Comment = CommentEntry.Text;
if (AnonCheckBox.IsChecked)
{
newReview.Anonymous = 1;
}
else
{
newReview.Anonymous = 0;
}
EntityLoader.AddReview(newReview);
}
await DisplayAlert("Success", "Your review was added.", "Cool!");
OnAddReview();
await Navigation.PopAsync();
}
