product.py

from django.db import models
from model_utils.managers import InheritanceManager


class Product(models.Model):
    name = models.CharField(max_length=50)
    description = models.CharField(max_length=200, null=True, blank=True)
    timestamp = models.DateTimeField(null=True, blank=True)

    objects = InheritanceManager()

    def __str__(self):
        return 'Product {}'.format(self.name)


def create_ext_product():
    attrs = {
        '__module__': 'web.models'
    }
    attrs.update({
        'str_property_{}'.format(i): models.CharField(
            max_length=50, null=True, blank=True
        ) for i in range(1, 16)
    })
    attrs.update({
        'str_property_{}#enabled'.format(i): models.BooleanField(default=True) for i in range(1, 16)
    })
    attrs.update({
        'int_property_{}'.format(i): models.IntegerField(
            null=True, blank=True
        ) for i in range(1, 16)
    })
    attrs.update({
        'int_property_{}#enabled'.format(i): models.BooleanField(default=True) for i in range(1, 16)
    })
    return type('ExtProduct', (Product,), attrs)