Django non-db field properties

models.py

"""
Ever got tired of having loads of migrations that have no effect on
the actual database?

This little mockup presents how we can move properties of fields into
a scope where they can easily be ignored by the migration system

Would it work?
"""
from django.db import models
from django.utils.translation import gettext_lazy as _

class Inquiry(models.Model):
    
    email = models.EmailField(null=False)
    sent_by = models.CharField(max_length=256, null=True)
    product = models.ForeignKey('shop.Product', on_delete=models.CASCADE)
    attachment = models.FileField(null=True)

    class Meta:
        unique_together = ("email", "product")
        order = ("product")
    
    class FieldMeta:
        """
        Everything here is ignored by migrations
        """

        verbose_names = {
            'email': _("email"),
            'sent_by': _("person name"),
            'product': _("product"),
            'attachment': _("photo or pdf drawing"),
        }
        help_texts = {
            'person_name': _("may be left blank"),
            'attachment': _(
                "we can find you the right shoe if you send a "
                "picture or drawing of your foot"
            ),
        }
        blank = {
            'person_name': True,
        }
        extra = {
            'attachment': {'upload_to': '/inquiries/'},
        }


class CompanyInquiry(Inquiry):

    items = models.IntegerField(default=0)
    
    class FieldMeta:
        verbose_names = {
            'sent_by': _("company or person"),  # Override parent verbose name!
            'items': _("number of items")
        }
        choices = {
            'items': [(1, "1"), (2, "2"), (10, "10")],
        }

        help_text = {
            'items': _("We only deliver in these quantities, which is relevant?"),
        }