id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
29237	ModelAdmin.inlines cause a model to lose its primary key from a model field default	Gunnar Thielebein	Sasha Gaevsky	"models.py

{{{
from django.db import models
from django.contrib.auth.models import User
import uuid

class Pizza(models.Model):
    name = models.CharField(max_length=40, unique=True, verbose_name='Name')

    def __unicode__(self):
        return self.name


class Topping(models.Model):
    name = models.CharField(max_length=40, unique=True, verbose_name='Name')

    def __unicode__(self):
        return self.name


class Size(models.Model):
    size = models.CharField(max_length=40, unique=True, verbose_name='Size')

    def __unicode__(self):
        return self.size


class Ordering(models.Model):
    uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, verbose_name=""UUID"")
    customer = models.ForeignKey('Customer', to_field='uuid', verbose_name='Customer')
    pizza = models.ForeignKey(Pizza, to_field='name', verbose_name='Pizza')
    size = models.ForeignKey(Size, to_field='size', verbose_name='Size')
    toppings = models.ManyToManyField(Topping, verbose_name='Toppings')

    def __unicode__(self):
        return str(self.uuid)

class Customer(User):
    uuid = models.UUIDField(default=uuid.uuid4, unique=True, editable=False, verbose_name=""UUID"")
    pizzas = models.ManyToManyField(Pizza, through=Ordering, blank=True, verbose_name='Pizzas Ordered')

    class Meta:
        verbose_name_plural = ""Customers""
}}}

admin.py:

{{{
from django.contrib import admin
from .models import *

from django.forms import modelformset_factory, inlineformset_factory, ModelForm

OrderingFormset = inlineformset_factory(Pizza, Ordering, fields=('pizza', 'toppings', 'size'))

class PizzaInline(admin.TabularInline):
    model = Ordering
    formset = OrderingFormset

class CustomerAdmin(admin.ModelAdmin):

    inlines = [
        PizzaInline,
    ]


admin.site.register(Customer, CustomerAdmin)
admin.site.register(Ordering)
admin.site.register(Pizza)
admin.site.register(Topping)
admin.site.register(Size)
}}}

There is an issue when adding a new customer with the CustomerModelAdmin in backend.
When creating a the following error is raised:


	IntegrityError at /admin/tabtest/customer/add/
	NOT NULL constraint failed: tabtest_customer.uuid

"	Bug	assigned	contrib.admin	1.11	Normal			Jeff Andrey Maslov	Accepted	0	0	0	0	0	0