Django Django Forms & Validation

Question 1

What class do you subclass to create a Django form?

Accepted Answer

forms.Form

Answer

forms.BaseForm

Answer

forms.ModelForm

Answer

forms.Field

Question 2

What is a Django ModelForm?

Accepted Answer

A form that automatically generates fields from a Django model

Answer

A form stored in the database

Answer

A form rendered using model templates

Answer

A form that validates against a model schema

Question 3

Which method checks if a submitted Django form is valid?

Accepted Answer

form.is_valid()

Answer

form.validate()

Answer

form.check()

Answer

form.clean()

Question 4

Where is validated form data stored after calling `form.is_valid()`?

Accepted Answer

form.cleaned_data

Answer

form.data

Answer

form.valid_data

Answer

form.post_data

Question 5

How do you define custom validation for a single field in a Django form?

Accepted Answer

Define a method named clean_<fieldname>(self)

Answer

Override the validate() method

Answer

Add a validator= argument to the field

Answer

Subclass the field class

Question 6

What does `form.save()` do on a Django ModelForm?

Accepted Answer

Creates or updates the model instance based on the form's cleaned data

Answer

Saves the form HTML to a file

Answer

Stores form data in the session

Answer

Persists form errors to the database