742ed9878e
Got rid of AppConfig._stub. As a side effect, app_cache.app_configs now only contains entries for applications that are in INSTALLED_APPS, which is a good thing and will allow dramatic simplifications (which I will perform in the next commit). That required adjusting all methods that iterate on app_configs without checking the "installed" flag, hence the large changes in get_model[s]. Introduced AppCache.all_models to store models: - while the app cache is being populated and a suitable app config object to register models isn't available yet; - for applications that aren't in INSTALLED_APPS since they don't have an app config any longer. Replaced get_model(seed_cache=False) by registered_model() which can be kept simple and safe to call at any time, and removed the seed_cache argument to get_model[s]. There's no replacement for that private API. Allowed non-master app caches to go through populate() as it is now safe to do so. They were introduced in 1.7 so backwards compatibility isn't a concern as long as the migrations framework keeps working.
66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
from __future__ import unicode_literals
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import os
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import sys
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from django.conf import settings
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from django.core.apps import app_cache
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from django.core.management import call_command
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from django.test import TestCase, TransactionTestCase
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from django.test.utils import override_settings
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from django.utils._os import upath
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from .models import (ConcreteModel, ConcreteModelSubclass,
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ConcreteModelSubclassProxy)
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@override_settings(INSTALLED_APPS=('app1', 'app2'))
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class ProxyModelInheritanceTests(TransactionTestCase):
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"""
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Proxy model inheritance across apps can result in migrate not creating the table
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for the proxied model (as described in #12286). This test creates two dummy
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apps and calls migrate, then verifies that the table has been created.
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"""
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available_apps = []
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def setUp(self):
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self.old_sys_path = sys.path[:]
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sys.path.append(os.path.dirname(os.path.abspath(upath(__file__))))
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for app in settings.INSTALLED_APPS:
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app_cache.load_app(app)
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def tearDown(self):
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sys.path = self.old_sys_path
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del app_cache.app_configs['app1']
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del app_cache.app_configs['app2']
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del app_cache.all_models['app1']
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del app_cache.all_models['app2']
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def test_table_exists(self):
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try:
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app_cache.set_available_apps(settings.INSTALLED_APPS)
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call_command('migrate', verbosity=0)
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finally:
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app_cache.unset_available_apps()
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from .app1.models import ProxyModel
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from .app2.models import NiceModel
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self.assertEqual(NiceModel.objects.all().count(), 0)
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self.assertEqual(ProxyModel.objects.all().count(), 0)
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class MultiTableInheritanceProxyTest(TestCase):
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def test_model_subclass_proxy(self):
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"""
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Deleting an instance of a model proxying a multi-table inherited
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subclass should cascade delete down the whole inheritance chain (see
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#18083).
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"""
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instance = ConcreteModelSubclassProxy.objects.create()
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instance.delete()
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self.assertEqual(0, ConcreteModelSubclassProxy.objects.count())
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self.assertEqual(0, ConcreteModelSubclass.objects.count())
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self.assertEqual(0, ConcreteModel.objects.count())
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