Here is the situation:
I have a model as below:
class School(Model):
name = CharField(...)
Permit model has three objects:
School.objects.create(name='school1') # id=1
School.objects.create(name='school2') # id=2
I have another model:
Interest(Model):
school_interest = ManyToManyField(School, blank=True,)
I then build a ModelForm using Interest:
class InterestForm(ModelForm):
school_interest = ModelMultipleChoiceField(queryset=School.objects.all(), widget=CheckboxSelectMultiple, required=False)
class Meta:
model = Interest
fields = '__all__'
I have a view:
def interest(request):
template_name = 'interest_template.html'
context = {}
if request.POST:
interest_form = InterestForm(request.POST)
if interest_form.is_valid():
if interest_form.cleaned_data['school_interest'] is None:
return HttpResponse('None')
else:
return HttpResponse('Not None')
else:
interest_form = InterestForm()
context.update({interest_form': interest_form, })
return render(request, template_name, context)
and in interest_template.html I have:
<form method="post">
{% csrf_token %}
{{ interest_form.as_p }}
<button type="submit">Submit</button>
</form>
I expect to see None when I check no one of the form fields and submit it.
I expect to see 'Not None' when I check any or all of the form fields and submit the form.
However, I do not see what I expect to happen.
