public async Task <IActionResult> Edit(int id, [Bind("ID,Title,Text,QualityGrade,InteractionGrade,HelpfulnessGrade,MentorGrade,TotalGrade,Points,Timestamp,AuthorID,ProfessorID")] ProfessorReview professorReview)
{
if (id != professorReview.ID)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
professorReview.TotalGrade = calculateTotalGrade(professorReview);
_context.Update(professorReview);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ProfessorReviewExists(professorReview.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction("Details", new { id = professorReview.ID }));
}
ViewData["AuthorID"] = new SelectList(_context.User, "Id", "Id", professorReview.AuthorID);
ViewData["ProfessorID"] = new SelectList(_context.Professor, "ID", "ID", professorReview.ProfessorID);
return(View(professorReview));
}
public async Task <IActionResult> Create([Bind("Title,Text,QualityGrade,InteractionGrade,HelpfulnessGrade,MentorGrade,Points,AuthorID,ProfessorID")] ProfessorReview professorReview, ICollection <int> tags)
{
if (professorReview.MentorGrade == 0)
{
professorReview.MentorGrade = null;
}
professorReview.TotalGrade = calculateTotalGrade(professorReview);
professorReview.Timestamp = DateTime.Now;
List <ProfessorReviewTagSet> tagSet = new List <ProfessorReviewTagSet>();
foreach (var tagId in tags)
{
var temp = new ProfessorReviewTagSet();
temp.ProfessorReviewID = professorReview.ID;
temp.ProfessorReviewTagID = tagId;
tagSet.Add(temp);
}
professorReview.ProfessorReviewTagSet = tagSet;
if (ModelState.IsValid)
{
_context.Add(professorReview);
await _context.SaveChangesAsync();
return(RedirectToAction("Details", new { id = professorReview.ID }));
}
ViewData["AuthorID"] = professorReview.AuthorID;
ViewData["ProfessorID"] = professorReview.ProfessorID;
ViewData["ProfessorTags"] = new SelectList(_context.ProfessorReviewTag, "ID", "Name");
return(View());
}
private decimal calculateTotalGrade(ProfessorReview pr)
{
int sum = 0;
decimal result = 0;
sum += pr.HelpfulnessGrade;
sum += pr.InteractionGrade;
sum += pr.QualityGrade;
if (pr.MentorGrade.HasValue)
{
sum += pr.MentorGrade.Value;
result = sum / (decimal)4;
}
else
{
result = sum / (decimal)3;
}
return(result);
}
