1
0
mirror of https://github.com/django/django.git synced 2024-12-22 17:16:24 +00:00

Removed django.core.cache.get_cache() per deprecation timeline; refs #21012.

This commit is contained in:
Tim Graham 2014-12-26 11:46:48 -05:00
parent aff0e54d51
commit d038c547b5
4 changed files with 6 additions and 80 deletions

View File

@ -13,19 +13,17 @@ object.
See docs/topics/cache.txt for information on the public API.
"""
from threading import local
import warnings
from django.conf import settings
from django.core import signals
from django.core.cache.backends.base import (
InvalidCacheBackendError, CacheKeyWarning, BaseCache)
from django.core.exceptions import ImproperlyConfigured
from django.utils.deprecation import RemovedInDjango19Warning
from django.utils.module_loading import import_string
__all__ = [
'get_cache', 'cache', 'DEFAULT_CACHE_ALIAS', 'InvalidCacheBackendError',
'cache', 'DEFAULT_CACHE_ALIAS', 'InvalidCacheBackendError',
'CacheKeyWarning', 'BaseCache',
]
@ -35,33 +33,6 @@ if DEFAULT_CACHE_ALIAS not in settings.CACHES:
raise ImproperlyConfigured("You must define a '%s' cache" % DEFAULT_CACHE_ALIAS)
def get_cache(backend, **kwargs):
"""
Function to create a cache backend dynamically. This is flexible by design
to allow different use cases:
To load a backend that is pre-defined in the settings::
cache = get_cache('default')
To create a backend with its dotted import path,
including arbitrary options::
cache = get_cache('django.core.cache.backends.memcached.MemcachedCache', **{
'LOCATION': '127.0.0.1:11211', 'TIMEOUT': 30,
})
"""
warnings.warn("'get_cache' is deprecated in favor of 'caches'.",
RemovedInDjango19Warning, stacklevel=2)
cache = _create_cache(backend, **kwargs)
# Some caches -- python-memcached in particular -- need to do a cleanup at the
# end of a request cycle. If not implemented in a particular backend
# cache.close is a no-op
signals.request_finished.connect(cache.close)
return cache
def _create_cache(backend, **kwargs):
try:
# Try to get the CACHES entry for the given backend name first

View File

@ -544,7 +544,7 @@ Cache
* Access to caches configured in :setting:`CACHES` is now available via
:data:`django.core.cache.caches`. This dict-like object provides a different
instance per thread. It supersedes :func:`django.core.cache.get_cache` which
instance per thread. It supersedes ``django.core.cache.get_cache()`` which
is now deprecated.
* If you instantiate cache backends directly, be aware that they aren't
@ -1468,7 +1468,7 @@ Features deprecated in 1.7
``django.core.cache.get_cache``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:func:`django.core.cache.get_cache` has been supplanted by
``django.core.cache.get_cache`` has been supplanted by
:data:`django.core.cache.caches`.
``django.utils.dictconfig``/``django.utils.importlib``

View File

@ -747,21 +747,6 @@ Accessing the cache
This object is equivalent to ``caches['default']``.
.. function:: django.core.cache.get_cache(backend, **kwargs)
.. deprecated:: 1.7
This function has been deprecated in favor of
:data:`~django.core.cache.caches`.
Before Django 1.7 this function was the canonical way to obtain a cache
instance. It could also be used to create a new cache instance with a
different configuration.
>>> from django.core.cache import get_cache
>>> get_cache('default')
>>> get_cache('django.core.cache.backends.memcached.MemcachedCache', LOCATION='127.0.0.2')
>>> get_cache('default', TIMEOUT=300)
Basic usage
-----------

36
tests/cache/tests.py vendored
View File

@ -17,9 +17,7 @@ import warnings
from django.conf import settings
from django.core import management
from django.core import signals
from django.core.cache import (cache, caches, CacheKeyWarning,
InvalidCacheBackendError, DEFAULT_CACHE_ALIAS, get_cache,
close_caches)
from django.core.cache import cache, caches, CacheKeyWarning, DEFAULT_CACHE_ALIAS
from django.db import connection, connections, transaction
from django.core.cache.utils import make_template_fragment_key
from django.http import HttpRequest, HttpResponse, StreamingHttpResponse
@ -30,14 +28,13 @@ from django.template import engines
from django.template.context_processors import csrf
from django.template.response import TemplateResponse
from django.test import (TestCase, TransactionTestCase, RequestFactory,
ignore_warnings, override_settings)
override_settings)
from django.test.signals import setting_changed
from django.utils import six
from django.utils import timezone
from django.utils import translation
from django.utils.cache import (patch_vary_headers, get_cache_key,
learn_cache_key, patch_cache_control, patch_response_headers)
from django.utils.deprecation import RemovedInDjango19Warning
from django.utils.encoding import force_text
from django.views.decorators.cache import cache_page
@ -1221,40 +1218,13 @@ class CustomCacheKeyValidationTests(TestCase):
}
}
)
class GetCacheTests(TestCase):
@ignore_warnings(category=RemovedInDjango19Warning)
def test_simple(self):
self.assertIsInstance(
caches[DEFAULT_CACHE_ALIAS],
get_cache('default').__class__
)
cache = get_cache(
'django.core.cache.backends.dummy.DummyCache',
**{'TIMEOUT': 120}
)
self.assertEqual(cache.default_timeout, 120)
self.assertRaises(InvalidCacheBackendError, get_cache, 'does_not_exist')
class CacheClosingTests(TestCase):
def test_close(self):
self.assertFalse(cache.closed)
signals.request_finished.send(self.__class__)
self.assertTrue(cache.closed)
@ignore_warnings(category=RemovedInDjango19Warning)
def test_close_deprecated(self):
cache = get_cache('cache.closeable_cache.CacheClass')
self.assertFalse(cache.closed)
# Ensure that we don't close the global cache instances.
signals.request_finished.disconnect(close_caches)
try:
signals.request_finished.send(self.__class__)
self.assertTrue(cache.closed)
finally:
signals.request_finished.connect(close_caches)
DEFAULT_MEMORY_CACHES_SETTINGS = {
'default': {