django-simplecms/cms/forms.py

43 wiersze
1.3 KiB
Python

from django import forms
from django.contrib.contenttypes.models import ContentType
import swapper
Page = swapper.load_model('cms', 'Page')
Section = swapper.load_model('cms', 'Section')
class PageForm(forms.ModelForm):
class Meta:
model = Page
fields = '__all__'
class SectionForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# Repopulate the 'choices' attribute of the type field from
# the child model.
self.fields['type'].choices = self._meta.model.TYPES
def save(self):
section = super().save()
app_label = section._meta.app_label
model = section.type
# Explanation: we'll get the content type of the model that
# the user supplied when filling in this form, and save it's
# id to the 'polymorphic_ctype_id' field. This way, the next
# time the object is requested from the database,
# django-polymorphic will automatically convert it to the
# correct subclass.
section.polymorphic_ctype = ContentType.objects.get(
app_label=section._meta.app_label,
model=section.type.lower(),
)
section.save()
return section
class Meta:
model = Section
exclude = ['page']