form validation in django

Question

In which file or form should validation code be written ?

Answer 1

In the file where you define the form class.

You might want to read the documentation on form validation. There's a decent example on that page of validation on a form as a whole and on individual components of forms.

Answer 2

Usually it's "forms.py"

Answer 3

Form validation in django is a done by methods on the form class.

Django does not impose any conditions on where forms have to be defined.

They are, often defined, by convention, in a file called forms.py

Answer 4

form validation , batter to define in models.py

so at first you have to define a function then you can use this link for more information

http://docs.djangoproject.com/en/dev/ref/forms/validation/