Código fuente para django.contrib.postgres.fields.citext
from django.db.models import CharField, EmailField, TextField
__all__ = ['CICharField', 'CIEmailField', 'CIText', 'CITextField']
[documentos]class CIText(object):
    def get_internal_type(self):
        return 'CI' + super(CIText, self).get_internal_type()
    def db_type(self, connection):
        return 'citext'
 
          