def public_page(request):
courses = []
for course in Course.objects.all():
course_data = {'course': course}
sections = []
for section in course.section_set.all():
section_data = {'section': section}
students = []
for student in course.public_students.all():
student_data = {'student': student}
student_data['score'] = calculate_score(student, section)
first_answer = UserAnswer.objects.filter(
user=student, question__section=section).order_by(
'test_was_taken').first()
if first_answer is not None:
student_data[
'test_was_taken'] = first_answer.test_was_taken
students.append(student_data)
section_data['students'] = students
sections.append(section_data)
course_data['sections'] = sections
courses.append(course_data)
comments = Comment.objects.all()
return render(request, 'students/public_page.html', {
'comments': comments,
'courses': courses,
})
def get_all_scores_for_user(user):
scores = []
# parcurgem doar cursurile in care studentul este inscris
for course in Course.objects.filter(students=user):
course_scores = []
for section in course.section_set.order_by('number'):
course_scores.append((section, calculate_score(user, section),))
scores.append((course, course_scores), )
return scores
def get_all_scores_for_user(user):
scores = []
for course in Course.objects.all():
course_scores = []
for section in course.section_set.order_by('number'):
course_scores.append((
section,
calculate_score(user, section),
))
scores.append((course, course_scores), )
return scores
def result(self, request, *args, **kwargs):
if not request.user.is_authenticated:
raise PermissionDenied
# make my own json (which is a dictionary)
return Response(
{'score': calculate_score(request.user, self.get_object())})
def get_all_scores_for_user(user, taken_only=True):
scores = []
# ^ empty list called scores
courses = Course.objects.filter(students=user)
if taken_only:
courses = courses.filter(
section__questions__useranswers__user=user).distinct()
for course in courses:
# ^ gets the course of the Model Course as well as the objects and
# ^ filters them by student now called 'user'
course_data = {'course': course}
# ^ inserting course to a dict
sections = []
# ^ empty list called sections
section_qs = course.section_set.order_by('number')
if taken_only:
section_qs = section_qs.filter(
questions__useranswers__user=user).distinct()
for section in section_qs:
# ^ looping through all sections in course
# ^ doing a reverse lookup on section (section_set) and ordering
# ^ them the the number on the Section model
has_taken = UserAnswer.objects.filter(
user=user,
question__section=section).order_by('test_was_taken').first()
section_data = {
'score': calculate_score(user, section),
'section': section,
}
if has_taken is not None:
section_data['test_was_taken'] = has_taken.test_was_taken
# ^ inserting calculate_score, user and section into key 'score' and section into 'section'
questions = []
# ^ empty list called questions
for question in section.questions.all():
# ^ looping through every question in sections in the course
question_data = {
'correct_answer': question.answers.filter(correct=True),
'question': question
}
# ^ inserting question.answers.filter(correct=True) into
# ^ inserting list of correct answers
try:
# ^ try to do the following
useranswer = question.useranswers.get(user=user)
# ^ useranswer is getting the useranswer of that user
except UserAnswer.DoesNotExist:
# ^ unless User didn't answer question
useranswer = None
# ^ useranswer is None (blank)
if useranswer is not None and useranswer.answer in question_data[
'correct_answer']:
# ^ looking to see if useranswer wasn't left blank and
# ^ useranswer.(lookup) answer is in question_data in the qeryset
# ^ (functions like a list) 'correct_answer'
question_data['correct'] = useranswer
# ^ if useranswer is not None and useranswer is in list then useranswer is True
else:
# ^
question_data['incorrect'] = useranswer
# ^ if useranswer is None or useranswer is not in list
question_data['useranswer'] = useranswer
# ^ question_data with list 'useranswer' is useranswer
questions.append(question_data)
# ^ adding question_data to questions
section_data['questions'] = questions
# ^ section_data with list 'questions' is questions
sections.append(section_data)
# ^ adding section_data to sections
course_data['sections'] = sections
# ^ course_data with list 'sections' is sections
scores.append(course_data)
# ^ (could you use extend() to add all appended items to course_data?)
return scores