On Wed, Jun 24, 2009 at 7:03 PM, Kusako<markus.strick...@googlemail.com> wrote:
>
> Hi-
>
> Is it possible to use models for objects that are not supposed to be
> persisted to the database, or read from it? I would like to use
> ModelForms, etc for them, but they should not have a table in the db
> or written to or read from the db.
If you just want a form, you don't need to use ModelForms - just use a
Form. The core Form framework operates independent of the database
layer - it is, quite literally, just a forms framework. ModelForm
exists as a convenience for building forms that are closely associated
with database objects, but you don't need the database layer, you
don't have to use them.
For example, if you want a form that will collect a name and age:
from django import forms
class MyForm(forms.Form):
name = forms.CharField(max_length=100)
age = forms.IntegerField()
You can then instantiate this form and check values. This form won't
have a save() method (since there is nothing to save), but it will
still have is_valid(), errors, cleaned_data, etc. The form itself will
be almost identical to the form produced if you had created a database
model:
from django.db import models
class MyModel(models.Model):
name = models.CharField(max_length=100)
age = models.IntegerField()
and then created a ModelForm:
from django import forms
class MyForm(forms.ModelForm):
class Meta:
model = MyModel
The parallels between the two syntaxes are very much intentional.
Yours,
Russ Magee %-)
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