django.db.models get_models returning empty list in django1.4

Question

My code used to work in Django 1.3, but after the update to Django 1.4 it does not anymore. The idea is to build a MenuItem for django-admin-tools, with a list of models from an app.

from admin_tools.utils import AppListElementMixin
from app import models as my_models

class CustomMenu(Menu):
    def init_with_context(self, context):

        app_list=AppListElementMixin()

        '''ERROR not working after upgrade to django 1.4, returns empty list'''
        all_models = get_models(app_mod=my_models)
        ''''''

        dict_models = {}
        for model in all_models:
            dict_models[model.__name__] = items.MenuItem(
                                            title=model._meta.verbose_name_plural,
                                            url=app_list._get_admin_change_url(model, context)
                                            )

Answer 1

Try to add your 'app' into settings.py INSTALLED_APPS then do this

from django.db.models import get_models, get_app

and this

all_models = get_models(app_mod=get_app('app'))

Answer 2

If your objective is to add a menu item for each model, you can try:

from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _

from admin_tools.menu import items, Menu

class CustomMenu(Menu):
    def __init__(self, **kwargs):
        Menu.__init__(self, **kwargs)
        self.children += [
            # Other items that are in the menu eg "items.Bookmarks()," go here
            items.AppList(
                _('Name of the submenu'), # Your own choosing
                models=('app.models.*',) # Assuming your django app is called "app"
            )
        ]

    def init_with_context(self, context):
        return super(CustomMenu, self).init_with_context(context)

This is what I have working in one of my projects.