Hello all,
I am trying to create a ModelForm subclass to customize the admin
interface for one of my models. In particular, I am attempting to add
a field to the ModelForm dynamically in its __init__ method (per
advice found here: http://www.b-list.org/weblog/2008/nov/09/dynamic-forms/).
I would like to be able to use this ModelForm subclass for custom
validation in the admin interface.
The trouble is that the dynamically-added field doesn't appear in the
admin interface. If I instantiate the ModelForm subclass directly,
and call as_p() or similar, the input tag, etc. for the dynamically-
added field appears in the HTML form that is output; but if I assign
the ModelForm subclass to the "form" attribute in the model's
ModelAdmin class, I don't see the dynamically-added field in the admin
interface. Example code below.
My question is: is there something special about the way the admin
interface instantiates and/or displays ModelForms that would prevent
me from adding fields dynamically this way? Do I need to do anything
else (e.g. override an admin template?) to see HTML inputs for these
fields in the admin?
Thanks for any and all help!
Best,
Richard
# hopefully-illustrative example code:
class Experiment(models.Model):
name = models.CharField(max_length=50)
# ...
class ExperimentForm(forms.ModelForm):
class Meta:
model = Experiment
def __init__(self, *args, **kwargs):
super(ExperimentForm, self).__init__(*args, **kwargs)
# I add another field dynamically here:
self.fields['email'] = forms.EmailField()
# If I call ExperimentForm().as_p(), I will see an HTML form with an
input for the "email" field...
class ExperimentAdmin(admin.ModelAdmin):
form = ExperimentForm
admin.site.register(Experiment, ExperimentAdmin)
# ...but I see no such field in the HTML form for adding or changing
an Experiment
# in the admin interface
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to django-users@googlegroups.com
To unsubscribe from this group, send email to
django-users+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en
-~----------~----~----~----~------~----~------~--~---
