I think the answer to this question can be useful to you.
Why does my django formset need a pointer field reference?
<https://stackoverflow.com/questions/13690468/why-does-my-django-formset-need-a-pointer-field-reference/#answers>
Il giorno lunedì 16 ottobre 2017 05:05:15 UTC+2, Tom Tanner ha scritto:
>
> Here's what my Mezzanine theme's `models.py` looks like.
>
> from __future__ import unicode_literals
>
>
> from django.db import models
> from django.core.urlresolvers import reverse
> from django.utils.translation import ugettext_lazy as _
>
>
> from mezzanine.conf import settings
> from mezzanine.core.fields import FileField, RichTextField
> from mezzanine.core.models import Displayable, Ownable, RichText, Slugged
> from mezzanine.generic.fields import CommentsField, RatingField
> from mezzanine.utils.models import AdminThumbMixin, upload_to
> from mezzanine.forms.models import Form
>
>
> class AboutPage(Form):
> '''
> All-in-one about page
> '''
>
>
> site_description= RichTextField(_("About"), help_text=_("A short
> description of this website."))
>
>
> class Meta:
> verbose_name=_("About page")
> verbose_name_plural=_("About pages")
>
> When I run `python manage.py makemigrations`, I get this message.
>
> You are trying to add a non-nullable field 'form_ptr' to aboutpage without
> a default; we can't do that (the database needs something to populate
> existing rows).
> Please select a fix:
> 1) Provide a one-off default now (will be set on all existing rows with a
> null value for this column)
> 2) Quit, and let me add a default in models.py
> Select an option: 2
>
>
> How do I change my `AboutPage` class to avoid this message?
>
> My goal is to make a page that where I can put a form with descriptions
> and other info for my site.
>
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