Re: Adding a field to a form during runtime
Hi Marek,
I think that your problem is that the make_car_form function returns a
form class rather than an instance of that class. Once you have the
class you still need to make an instance of it. Something like this
might work:
form_class = make_car_form(True)
carForm = form_class()
Preston
On Mar 19, 7:05 am, Thomas Guettler wrote:
> Sorry, I can't help you here, since I don't create classes
> at runtime (*). I think using __init__() is better, and I guess
> you can solve your problem with it, too.
>
> (*) type('ContactForm', (forms.BaseForm, ), { 'base_fields': fields})
>
> Marek W schrieb:
>
>
>
> > Thanks for your response. Probably the reason was I didn't update a
> > database, because now(after making syncdb) it works correctly. But by the
> > time I've found a second problem:
>
> > while to create a dynamic form this way:
>
> > def make_car_form(extra):
> > fields = { 'carType' : forms.CharField() }
> > if extra:
> > fields['extraField'] = forms.CharField()
> > return type('ContactForm', (forms.BaseForm, ), { 'base_fields': fields
> > })
>
> > View method:
> > (...)
> > carForm = make_car_form(True)
> > (...)
>
> > then on the page there aren't any fields, whether calling make_car_form with
> > extra=True or extra=False.
>
> --
> Thomas Guettler,http://www.thomas-guettler.de/
> E-Mail: guettli (*) thomas-guettler + de
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---
Re: Adding a field to a form during runtime
Sorry, I can't help you here, since I don't create classes
at runtime (*). I think using __init__() is better, and I guess
you can solve your problem with it, too.
(*) type('ContactForm', (forms.BaseForm, ), { 'base_fields': fields})
Marek W schrieb:
> Thanks for your response. Probably the reason was I didn't update a
> database, because now(after making syncdb) it works correctly. But by the
> time I've found a second problem:
>
> while to create a dynamic form this way:
>
> def make_car_form(extra):
> fields = { 'carType' : forms.CharField() }
> if extra:
> fields['extraField'] = forms.CharField()
> return type('ContactForm', (forms.BaseForm, ), { 'base_fields': fields
> })
>
>
> View method:
> (...)
> carForm = make_car_form(True)
> (...)
>
> then on the page there aren't any fields, whether calling make_car_form with
> extra=True or extra=False.
--
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---
Re: Adding a field to a form during runtime
Thanks for your response. Probably the reason was I didn't update a
database, because now(after making syncdb) it works correctly. But by the
time I've found a second problem:
while to create a dynamic form this way:
def make_car_form(extra):
fields = { 'carType' : forms.CharField() }
if extra:
fields['extraField'] = forms.CharField()
return type('ContactForm', (forms.BaseForm, ), { 'base_fields': fields
})
View method:
(...)
carForm = make_car_form(True)
(...)
then on the page there aren't any fields, whether calling make_car_form with
extra=True or extra=False.
Regards,
Marek
2009/3/18 Thomas Guettler
>
> Hi,
>
> your code looks correct.
>
> You can try to debug it. Maybe insert
> assert False, self.fields into __init__()
> Do the fields from the model exist?
>
> Thomas
>
> Marek W schrieb:
> > Hi, I would like to add a field to a form dynamically. I'm using Django
> > 1.0.2.
> >
> > Here's my view code:
> >
> > class CarForm(ModelForm):
> > def __init__(self, *args, **kwargs):
> > super(CarForm, self).__init__(*args, **kwargs)
> > self.fields['extraField'] = forms.CharField()
> >
> > class Meta:
> > model = Car
> ...
>
> > I took this idea from
> > http://www.b-list.org/weblog/2008/nov/09/dynamic-forms/. When I try to
> view
> > the page, when there's my own __init__ method in CarForm class, then the
> car
> > form doesn't contain any field. When i remove the __init__ method,
> > everything works correctly. How to add a field to a form during a
> runtime ?
>
>
> --
> Thomas Guettler, http://www.thomas-guettler.de/
> E-Mail : guettli (*)
> thomas-guettler + de
>
> >
>
--
Pozdrawiam,
Marek Wawrzyczek
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---
Re: Adding a field to a form during runtime
Hi, your code looks correct. You can try to debug it. Maybe insert assert False, self.fields into __init__() Do the fields from the model exist? Thomas Marek W schrieb: > Hi, I would like to add a field to a form dynamically. I'm using Django > 1.0.2. > > Here's my view code: > > class CarForm(ModelForm): > def __init__(self, *args, **kwargs): > super(CarForm, self).__init__(*args, **kwargs) > self.fields['extraField'] = forms.CharField() > > class Meta: > model = Car ... > I took this idea from > http://www.b-list.org/weblog/2008/nov/09/dynamic-forms/. When I try to view > the page, when there's my own __init__ method in CarForm class, then the car > form doesn't contain any field. When i remove the __init__ method, > everything works correctly. How to add a field to a form during a runtime ? -- Thomas Guettler, http://www.thomas-guettler.de/ E-Mail: guettli (*) thomas-guettler + de --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Adding a field to a form during runtime
Hi, I would like to add a field to a form dynamically. I'm using Django
1.0.2.
Here's my view code:
class CarForm(ModelForm):
def __init__(self, *args, **kwargs):
super(CarForm, self).__init__(*args, **kwargs)
self.fields['extraField'] = forms.CharField()
class Meta:
model = Car
class CarPhotoForm(ModelForm):
class Meta:
model = CarPhoto
def car(request, template_name = 'cars.html'):
carForm = CarForm(True)
carPhotoForm = CarPhotoForm()
return render_to_response(template_name, {'carForm' : carForm,
'carPhotoForm' : carPhotoForm})
And here's a model:
class Car(models.Model):
car_type = models.CharField(max_length = 50)
class CarPhoto(models.Model):
photo = models.ImageField( upload_to = 'cars_photos/')
car = models.ForeignKey(Car)
The template is very simple too:
Car form:
{{carForm.as_p}}
Car photo form:
{{carPhotoForm.as_p}}
I took this idea from
http://www.b-list.org/weblog/2008/nov/09/dynamic-forms/. When I try to view
the page, when there's my own __init__ method in CarForm class, then the car
form doesn't contain any field. When i remove the __init__ method,
everything works correctly. How to add a field to a form during a runtime ?
Thanks in advance,
Marek
--~--~-~--~~~---~--~~
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
-~--~~~~--~~--~--~---
