def do_quizchallenge( request, world, stage, challenge ):
here = get_stage(world, stage)
if not here.challenge:
if here.tutorial: return redirect( "lesson", world = world, stage =stage )
else: raise Http404()
quizID = request.POST.get("quizID")
challenge, answer_map = request.session.get(quizID)
if challenge is None or answer_map is None: pass # raise shenanigans.
# First we extract all of the responses from the form.
responses = []
q = 0
while "q%d"%q in request.POST:
responses.append( request.POST.getlist("q%d"%q) )
q += 1
# For each of the questions, we create a QuizAnswer and store it in the
# answers list. Assuming we get all the way through without any shenanigans,
# we'll save all of those models, then create a single QuizChallengeResponse
# to hold them.
answers = []
score = 0
total = 0
for q in range(len(responses)):
if q not in answer_map: pass # raise shenanigans.
total += 1
QA = QuizAnswer()
raw_response_list = responses[q]
QA.question, choice_map = answer_map[q]
response_list = []
for r in raw_response_list:
if r in answer_map: response_list.append( answer_map[r] )
if 'A' in response_list: QA.selectedA = True
if 'B' in response_list: QA.selectedB = True
if 'C' in response_list: QA.selectedC = True
if 'D' in response_list: QA.selectedD = True
if 'E' in response_list: QA.selectedE = True
ans = True
if QA.question.multiple_ok:
if QA.selectedA != QA.question.correctA: ans = False
if QA.selectedB != QA.question.correctB: ans = False
if QA.selectedC != QA.question.correctC: ans = False
if QA.selectedD != QA.question.correctD: ans = False
if QA.selectedE != QA.question.correctE: ans = False
else:
ans = False
if QA.selectedA == QA.question.correctA: ans = True
if QA.selectedB == QA.question.correctB: ans = True
if QA.selectedC == QA.question.correctC: ans = True
if QA.selectedD == QA.question.correctD: ans = True
if QA.selectedE == QA.question.correctE: ans = True
if ans: score += 1
QA.correct = ans
answers.append(QA)
# We made it through safely! Now we save the response in the DB.
for QA in answers: QA.save()
QCR = QuizChallengeResponse()
QCR.quiz = challenge
QCR.student = request.user.student
QCR.score = score
QCR.correct = (score == total)
QCR.save() # Can't do many-to-many until we save it once.
for QA in answers: QCR.answers.add(QA)
QCR.save()
# If QCR was correct, add the stage to the Student's completion record.
return HttpResponse( str(responses) )
