CODEWITHSUNDEEP
pythondjango
Ambrose
Ambrose

Reputation: 363

BooleanField not updating: Django

I am learning Django by building an example app in which students can choose to participate in study sections. The participate action is a BooleanField that I would like the students to be able to check or uncheck and update. It is unchecked by default and I am able to check it and save the form. But when I go to update the form the box is unchecked. How can I set up the form, model, and view so that the participate field can be saved and updated?

models.py

class StudentAnswer(models.Model):
    student = models.ForeignKey(Student, on_delete=models.CASCADE, related_name='study_answers')
    study = models.ForeignKey(Study, on_delete=models.CASCADE, related_name='study_participate', null=True)
    participate = models.BooleanField('Participate?', default=False)

forms.py

class ViewStudyForm(forms.ModelForm):

    class Meta:
        model = StudentAnswer
        fields = ('participate', )

views.py

@login_required
@student_required
def participate_study(request, pk):
    study = get_object_or_404(Study, pk=pk)
    student = request.user.student

    total_details = study.details.count()
    details = student.get_details(study)

    if request.method == 'POST':
        form = ViewStudyForm(data=request.POST)
        if form.is_valid():
            with transaction.atomic():
                student_answer = form.save(commit=False)
                student_answer.student = student
                student_answer.save()
                messages.success(request, 'Congratulations! You signed up to participate in the study %s!' % (study.name))
                return redirect('students:study_list')
    else:
        form = ViewStudyForm()
    progress=100
    return render(request, 'classroom/students/past_study_form.html', {
        'study': study,
        'details': details,
        'form': form,
        'progress': progress
    })

Upvotes: 1

Views: 468

Answers (1)

Chiefir
Chiefir

Reputation: 2671

Try something like this:

....
else:
    participate = StudentAnswer.objects.get(student=student).values('participate')
    form = ViewStudyForm(initial={'participate': participate})

This should take boolean participate from your StudentAnswer instance and assign it to your form.
More informations is here in Django docs.

Upvotes: 1

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