What are the best practices for validation in Django?

What are the best practices for validation in Django?

Some best practices include using Django's built-in validators, creating custom validators, and validating data at both the model and form levels.

Can you give examples of built-in validators?

Sure! Django provides validators like MaxLengthValidator, MinValueValidator, and EmailValidator.

How do I create a custom validator?

You can create a custom validator by defining a function that raises a ValidationError if the data is invalid, then use it in your model or form.

What about validation in serializers?

In serializers, you can use the validate_<field_name> method or the validators argument to apply validation rules.