TypeError: 'RegexValidator' object is not iterable

Question

I was building integer array field for color.

I tried to use CommaSeparatedIntegerField but it was depreated

CommaSeparatedIntegerField has been deprecated. 
Support for it (except in historical migrations) will be removed in Django 2.0.
    HINT: Use CharField(validators=[validate_comma_separated_integer_list]) instead

So I used set the color field as CharField instead of CommaSeparatedIntegerFieldas recommended

from django.core.validators import validate_comma_separated_integer_list

class Cloth(models.Model):
    color = models.CharField(validators=validate_comma_separated_integer_list)

But I'm getting this error when I makemigrations

TypeError: 'RegexValidator' object is not iterable

Why am I getting this error? I followed the exact guideline :(

Answer 1

first of all CharField requires a max_length field and validators need to be in a list []

so,

class Cloth(models.Model):
    color = models.CharField(validators=[validate_comma_separated_integer_list],max_length=100)