Django CharField without empty strings

Use a MinLengthValidator:

from django.core.validators import MinLengthValidator
...
title = models.CharField(max_length=10, validators=[MinLengthValidator(1)])

According to the documentation, blank=False is purely validation-related that works only on a form level.

See related threads:

• Django model blank=False does not work?
• Why are blank and null distinct options for a django model?