si me llega de un post la variable services[1,2,3] como guardarlos de forma independiente cada uno de este array con save()

from django.core.exceptions import ValidationError
from django.utils.translation import gettext_lazy as _

def validate_comma_separated_integer_list(value):
    """
    Check that the input is a comma-separated list of integers.
    """
    for val in value.split(','):
        try:
            int(val)
        except ValueError:
            raise ValidationError(
                _('%s is not an integer.' % val),
                code='invalid',
            )