For the life of me I can't figure out how to use a modelformset with class
view. I get it to display but it won't save. Also, when it goes into
form_invalid, it doesn't display the 3 formsets. Can anyone shed a little
light?
I'm using crispy forms with this in my template:
{% crispy reference_form referencehelper %}
This is my model
class Reference(models.Model):
ref_name = models.CharField(max_length=256)
ref_phone = models.CharField(max_length=20,
validators=[RegexValidator(regex='\(?([0-9]{3})\)?([ .-]?)([0-9]{3})([
.-]?)([0-9]{4})', message='Looks like your phone number is not formatted
correctly', code='Invalid number')])
ref_email = models.EmailField(max_length=256)
created_by = models.ForeignKey(User, unique=True)
applicant = models.ForeignKey("Applicant")
application = models.ForeignKey("Application")
This is my form.py form
class ReferenceForm(forms.ModelForm):
class Meta:
model = Reference
exclude = ('created_by', 'application', 'applicant')
def __init__(self, *args, **kwargs):
super(ReferenceForm, self).__init__(*args, **kwargs)
class ReferenceFormSetHelper(FormHelper):
def __init__(self, *args, **kwargs):
super(ReferenceFormSetHelper, self).__init__(*args, **kwargs)
self.form_method = 'post'
self.layout = Layout(
Fieldset('Reference',
'ref_name',
'ref_phone',
'ref_email',
))
self.add_input(Submit("submit", "Save"))
ReferenceFormSet = modelformset_factory(Reference, form=ReferenceForm,
extra=3, max_num=3, can_delete=True)
This is my view:
class ReferenceCreate(LoginRequiredMixin, CreateView):
model = Reference
form_class = ReferenceForm
template_name = 'requestform/reference_form.html'
def dispatch(self, *args, **kwargs):
return super(ReferenceCreate, self).dispatch(*args, **kwargs)
def get(self, request, *args, **kwargs):
"""
Handles GET requests and instantiates blank versions of the form
and its inline formsets.
"""
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
reference_form = ReferenceFormSet()
refhelper = ReferenceFormSetHelper()
return self.render_to_response(
self.get_context_data(
reference_form=reference_form,
referencehelper=refhelper
))
def form_valid(self, form):
"""
Called if all forms are valid. Creates a Recipe instance along with
associated Ingredients and Instructions and then redirects to a
success page.
"""
self.object = form.save()
reference_form.instance = self.object
reference_form.save()
return HttpResponseRedirect(reverse('requestform:app_check',
kwargs={'app_id': obj.application_id}))
def form_invalid(self, reference_form):
refhelper = ReferenceFormSetHelper()
return self.render_to_response(self.get_context_data(
reference_form=reference_form,
referencehelper=refhelper
))
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