How to define positive integer field that accepts 6 digits only in Django?

I want to define a database field in models.py that accepts only 6 digits in Django.

This is how I define the field in models.py but it can accept any positive integer;

six_digit_code = models.PositiveIntegerField(blank=False)

I am using Django v4.

>Solution :

You should use validators for it

six_digit_code = models.PositiveIntegerField(validators=[MinValueValidator(100000), MaxValueValidator(999999)])