Hi,
Supose that I have a model with a from and to date:
class Foo (models.Model):
from_date = models.DateField()
to_date = models.DateField()
What is the correct way to ensure that from_date is always before
to_date?
For now, I'm using only the admin site.
One way, may be, is to use custom validation to the admin, like
suggest in
http://docs.djangoproject.com/en/dev/ref/contrib/admin/#adding-custom-validation-to-the-admin.
But i think that is better to have a method to validate, inside model
logic, as suggested in an old thread
http://groups.google.com/group/django-users/browse_thread/thread/58c20c72f8b8725a/ec2a26c6118183fd?lnk=gst&q=validation#ec2a26c6118183fd
The latter one, does not work for me.... i dont know what i'm doing
wrong, i got an error msg :
'Foo' object has no attribute 'cleaned_data'
Regards,
Mario.
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