What are some examples of validators in Django models?

What are some examples of validators in Django models?

Django provides several built-in validators. For example, you can use MaxLengthValidator to limit the length of a string field.

Can you show me how to use the EmailValidator?

Sure! You can use EmailValidator in your model like this:

from django.core.validators import EmailValidator
from django.db import models

class User(models.Model):
    email = models.EmailField(validators=[EmailValidator()])

What happens if the email is invalid?

If the email is invalid, Django will raise a ValidationError when you try to save the model instance.

Are there any custom validators I can create?

Yes, you can create custom validators by defining a function that raises ValidationError if the value is invalid. Here's an example!