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django
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Removed the app_config.installed flag. 

Since applications that aren't installed no longer have an application
configuration, it is now always True in practice.

Provided an abstraction to temporarily add or remove applications as
several tests messed with app_config.installed to achieve this effect.
For now this API is _-prefixed because it looks dangerous.
This commit is contained in:
Aymeric Augustin 2013-12-18 13:16:33 +01:00
parent 972babc3b4
commit 9b3389b726
10 changed files with 99 additions and 60 deletions
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23
django/contrib/contenttypes/tests.py
View File

@ -1,9 +1,10 @@
from __future__ import unicode_literals
from django.db import models
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes.views import shortcut
from django.contrib.sites.models import Site, get_current_site
from django.contrib.sites.models import get_current_site
from django.core.apps import app_cache
from django.db import models
from django.http import HttpRequest, Http404
from django.test import TestCase
from django.test.utils import override_settings
@ -54,11 +55,9 @@ class FooWithBrokenAbsoluteUrl(FooWithoutUrl):
class ContentTypesTests(TestCase):
def setUp(self):
self._old_installed = Site._meta.app_config.installed
ContentType.objects.clear_cache()
def tearDown(self):
Site._meta.app_config.installed = self._old_installed
ContentType.objects.clear_cache()
def test_lookup_cache(self):
@ -223,15 +222,15 @@ class ContentTypesTests(TestCase):
user_ct = ContentType.objects.get_for_model(FooWithUrl)
obj = FooWithUrl.objects.create(name="john")
Site._meta.app_config.installed = True
response = shortcut(request, user_ct.id, obj.id)
self.assertEqual("http://%s/users/john/" % get_current_site(request).domain,
response._headers.get("location")[1])
with app_cache._with_app('django.contrib.sites'):
response = shortcut(request, user_ct.id, obj.id)
self.assertEqual("http://%s/users/john/" % get_current_site(request).domain,
response._headers.get("location")[1])
Site._meta.app_config.installed = False
response = shortcut(request, user_ct.id, obj.id)
self.assertEqual("http://Example.com/users/john/",
response._headers.get("location")[1])
with app_cache._without_app('django.contrib.sites'):
response = shortcut(request, user_ct.id, obj.id)
self.assertEqual("http://Example.com/users/john/",
response._headers.get("location")[1])
def test_shortcut_view_without_get_absolute_url(self):
"""

6
django/contrib/gis/tests/geoapp/test_feeds.py
View File

@ -7,6 +7,7 @@ from django.conf import settings
from django.contrib.sites.models import Site
from django.contrib.gis.geos import HAS_GEOS
from django.contrib.gis.tests.utils import HAS_SPATIAL_DB
from django.core.apps import app_cache
from django.test import TestCase
if HAS_GEOS:
@ -20,11 +21,10 @@ class GeoFeedTest(TestCase):
def setUp(self):
Site(id=settings.SITE_ID, domain="example.com", name="example.com").save()
self._old_installed = Site._meta.app_config.installed
Site._meta.app_config.installed = True
self._with_sites = app_cache._begin_with_app('django.contrib.sites')
def tearDown(self):
Site._meta.app_config.installed = self._old_installed
app_cache._end_with_app(self._with_sites)
def assertChildNodes(self, elem, expected):
"Taken from syndication/tests.py."

6
django/contrib/gis/tests/geoapp/test_sitemaps.py
View File

@ -10,6 +10,7 @@ from django.conf import settings
from django.contrib.gis.geos import HAS_GEOS
from django.contrib.gis.tests.utils import HAS_SPATIAL_DB
from django.contrib.sites.models import Site
from django.core.apps import app_cache
from django.test import TestCase
from django.test.utils import IgnoreDeprecationWarningsMixin
from django.utils._os import upath
@ -26,11 +27,10 @@ class GeoSitemapTest(IgnoreDeprecationWarningsMixin, TestCase):
def setUp(self):
super(GeoSitemapTest, self).setUp()
Site(id=settings.SITE_ID, domain="example.com", name="example.com").save()
self._old_installed = Site._meta.app_config.installed
Site._meta.app_config.installed = True
self._with_sites = app_cache._begin_with_app('django.contrib.sites')
def tearDown(self):
Site._meta.app_config.installed = self._old_installed
app_cache._end_with_app(self._with_sites)
super(GeoSitemapTest, self).tearDown()
def assertChildNodes(self, elem, expected):

4
django/contrib/sitemaps/tests/base.py
View File

@ -25,10 +25,6 @@ class SitemapTestsBase(TestCase):
def setUp(self):
self.base_url = '%s://%s' % (self.protocol, self.domain)
self._old_installed = Site._meta.app_config.installed
cache.clear()
# Create an object for sitemap content.
TestModel.objects.create(name='Test Object')
def tearDown(self):
Site._meta.app_config.installed = self._old_installed

15
django/contrib/sitemaps/tests/test_http.py
View File

@ -7,6 +7,7 @@ from unittest import skipUnless
from django.conf import settings
from django.contrib.sitemaps import Sitemap, GenericSitemap
from django.contrib.sites.models import Site
from django.core.apps import app_cache
from django.core.exceptions import ImproperlyConfigured
from django.test.utils import override_settings
from django.utils.formats import localize
@ -108,15 +109,14 @@ class HTTPSitemapTests(SitemapTestsBase):
def test_requestsite_sitemap(self):
# Make sure hitting the flatpages sitemap without the sites framework
# installed doesn't raise an exception.
# Reset by SitemapTestsBase.tearDown().
Site._meta.app_config.installed = False
response = self.client.get('/simple/sitemap.xml')
expected_content = """<?xml version="1.0" encoding="UTF-8"?>
with app_cache._without_app('django.contrib.sites'):
response = self.client.get('/simple/sitemap.xml')
expected_content = """<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url><loc>http://testserver/location/</loc><lastmod>%s</lastmod><changefreq>never</changefreq><priority>0.5</priority></url>
</urlset>
""" % date.today()
self.assertXMLEqual(response.content.decode('utf-8'), expected_content)
self.assertXMLEqual(response.content.decode('utf-8'), expected_content)
@skipUnless("django.contrib.sites" in settings.INSTALLED_APPS,
"django.contrib.sites app not installed.")
@ -134,9 +134,8 @@ class HTTPSitemapTests(SitemapTestsBase):
Sitemap.get_urls if Site objects exists, but the sites framework is not
actually installed.
"""
# Reset by SitemapTestsBase.tearDown().
Site._meta.app_config.installed = False
self.assertRaises(ImproperlyConfigured, Sitemap().get_urls)
with app_cache._without_app('django.contrib.sites'):
self.assertRaises(ImproperlyConfigured, Sitemap().get_urls)
def test_sitemap_item(self):
"""

14
django/contrib/sites/tests.py
View File

@ -2,6 +2,7 @@ from __future__ import unicode_literals
from django.conf import settings
from django.contrib.sites.models import Site, RequestSite, get_current_site
from django.core.apps import app_cache
from django.core.exceptions import ObjectDoesNotExist, ValidationError
from django.http import HttpRequest
from django.test import TestCase
@ -12,11 +13,10 @@ class SitesFrameworkTests(TestCase):
def setUp(self):
Site(id=settings.SITE_ID, domain="example.com", name="example.com").save()
self._old_installed = Site._meta.app_config.installed
Site._meta.app_config.installed = True
self._with_sites = app_cache._begin_with_app('django.contrib.sites')
def tearDown(self):
Site._meta.app_config.installed = self._old_installed
app_cache._end_with_app(self._with_sites)
def test_save_another(self):
# Regression for #17415
@ -67,10 +67,10 @@ class SitesFrameworkTests(TestCase):
self.assertRaises(ObjectDoesNotExist, get_current_site, request)
# A RequestSite is returned if the sites framework is not installed
Site._meta.app_config.installed = False
site = get_current_site(request)
self.assertTrue(isinstance(site, RequestSite))
self.assertEqual(site.name, "example.com")
with app_cache._without_app('django.contrib.sites'):
site = get_current_site(request)
self.assertTrue(isinstance(site, RequestSite))
self.assertEqual(site.name, "example.com")
def test_domain_name_with_whitespaces(self):
# Regression for #17320

6
django/core/apps/base.py
View File

@ -30,14 +30,10 @@ class AppConfig(object):
# Populated by calls to AppCache.register_model().
self.models = OrderedDict()
# Whether the app is in INSTALLED_APPS or was automatically created
# when one of its models was imported.
self.installed = app_module is not None
# Filesystem path to the application directory eg.
# u'/usr/lib/python2.7/dist-packages/django/contrib/admin'.
# This is a unicode object on Python 2 and a str on Python 3.
self.path = upath(app_module.__path__[0]) if app_module is not None else None
self.path = upath(app_module.__path__[0])
def __repr__(self):
return '<AppConfig: %s>' % self.label

63
django/core/apps/cache.py
View File

@ -1,6 +1,7 @@
"Utilities for loading models and the modules that contain them."
from collections import defaultdict, OrderedDict
from contextlib import contextmanager
from importlib import import_module
import os
import sys
@ -120,8 +121,7 @@ class AppCache(object):
finally:
self.nesting_level -= 1
app_config = AppConfig(
name=app_name, app_module=app_module, models_module=models_module)
app_config = AppConfig(app_name, app_module, models_module)
app_config.models = self.all_models[app_config.label]
self.app_configs[app_config.label] = app_config
@ -257,7 +257,7 @@ class AppCache(object):
self.populate()
if only_installed:
app_config = self.app_configs.get(app_label)
if app_config is None or not app_config.installed:
if app_config is None:
return None
if (self.available_apps is not None
and app_config.name not in self.available_apps):
@ -304,6 +304,63 @@ class AppCache(object):
def unset_available_apps(self):
self.available_apps = None
### DANGEROUS METHODS ### (only used to preserve existing tests)
def _begin_with_app(self, app_name):
# Returns an opaque value that can be passed to _end_with_app().
app_module = import_module(app_name)
models_module = import_module('%s.models' % app_name)
app_config = AppConfig(app_name, app_module, models_module)
if app_config.label in self.app_configs:
return None
else:
app_config.models = self.all_models[app_config.label]
self.app_configs[app_config.label] = app_config
return app_config
def _end_with_app(self, app_config):
if app_config is not None:
del self.app_configs[app_config.label]
@contextmanager
def _with_app(self, app_name):
app_config = self._begin_with_app(app_name)
try:
yield
finally:
self._end_with_app(app_config)
def _begin_without_app(self, app_name):
# Returns an opaque value that can be passed to _end_without_app().
return self.app_configs.pop(app_name.rpartition(".")[2], None)
def _end_without_app(self, app_config):
if app_config is not None:
self.app_configs[app_config.label] = app_config
@contextmanager
def _without_app(self, app_name):
app_config = self._begin_without_app(app_name)
try:
yield
finally:
self._end_without_app(app_config)
def _begin_empty(self):
app_configs, self.app_configs = self.app_configs, OrderedDict()
return app_configs
def _end_empty(self, app_configs):
self.app_configs = app_configs
@contextmanager
def _empty(self):
app_configs = self._begin_empty()
try:
yield
finally:
self._end_empty(app_configs)
### DEPRECATED METHODS GO BELOW THIS LINE ###
def get_app(self, app_label):

4
django/db/models/options.py
View File

@ -94,11 +94,11 @@ class Options(object):
@property
def app_config(self):
# Don't go through get_app_config to avoid triggering populate().
return self.app_cache.app_configs[self.app_label]
return self.app_cache.app_configs.get(self.app_label)
@property
def installed(self):
return self.app_config.installed
return self.app_config is not None
def contribute_to_class(self, cls, name):
from django.db import connection

18
tests/admin_docs/tests.py
View File

@ -4,6 +4,7 @@ from django.conf import settings
from django.contrib.sites.models import Site
from django.contrib.admindocs import utils
from django.contrib.auth.models import User
from django.core.apps import app_cache
from django.core.urlresolvers import reverse
from django.test import TestCase
from django.test.utils import override_settings
@ -13,27 +14,18 @@ class MiscTests(TestCase):
urls = 'admin_docs.urls'
def setUp(self):
self._old_installed = Site._meta.app_config.installed
User.objects.create_superuser('super', None, 'secret')
self.client.login(username='super', password='secret')
def tearDown(self):
Site._meta.app_config.installed = self._old_installed
@override_settings(
SITE_ID=None,
INSTALLED_APPS=[app for app in settings.INSTALLED_APPS
if app != 'django.contrib.sites'],
)
def test_no_sites_framework(self):
"""
Without the sites framework, should not access SITE_ID or Site
objects. Deleting settings is fine here as UserSettingsHolder is used.
"""
Site._meta.app_config.installed = False
Site.objects.all().delete()
del settings.SITE_ID
self.client.get('/admindocs/views/') # should not raise
with self.settings(SITE_ID=None), app_cache._without_app('django.contrib.sites'):
Site.objects.all().delete()
del settings.SITE_ID
self.client.get('/admindocs/views/') # should not raise
@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))