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Fixed #13200 -- Updated the DB session backend to make full use of ro…

…uters, deprecating the need for the SESSION_DB_ALIAS setting. Thanks to rokclimb15 for the report.

git-svn-id: bcc190cf-cafb-0310-a4f2-bffc1f526a37
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1 parent c62c47e commit 962defed0adab6144464337a9cad44a4323ae3de @freakboy3742 freakboy3742 committed
10 django/contrib/sessions/backends/
@@ -3,7 +3,7 @@
from django.contrib.sessions.models import Session
from django.contrib.sessions.backends.base import SessionBase, CreateError
from django.core.exceptions import SuspiciousOperation
-from django.db import IntegrityError, transaction, DEFAULT_DB_ALIAS
+from django.db import IntegrityError, transaction, router
from django.utils.encoding import force_unicode
class SessionStore(SessionBase):
@@ -11,7 +11,6 @@ class SessionStore(SessionBase):
Implements database session store.
def __init__(self, session_key=None):
- self.using = getattr(settings, "SESSION_DB_ALIAS", DEFAULT_DB_ALIAS)
super(SessionStore, self).__init__(session_key)
def load(self):
@@ -58,12 +57,13 @@ def save(self, must_create=False):
session_data = self.encode(self._get_session(no_load=must_create)),
expire_date = self.get_expiry_date()
- sid = transaction.savepoint(using=self.using)
+ using = router.db_for_write(Session, instance=obj)
+ sid = transaction.savepoint(using=using)
+, using=using)
except IntegrityError:
if must_create:
- transaction.savepoint_rollback(sid, using=self.using)
+ transaction.savepoint_rollback(sid, using=using)
raise CreateError
12 docs/ref/settings.txt
@@ -1299,18 +1299,6 @@ See the :ref:`topics-http-sessions`.
-.. versionadded:: 1.2
-Default: ``None``
-If you're using database-backed session storage, this selects the database
-alias that will be used to store session data. By default, Django will use
-the ``default`` database, but you can store session data on any database
-you choose.
7 docs/topics/http/sessions.txt
@@ -44,16 +44,9 @@ Using database-backed sessions
If you want to use a database-backed session, you need to add
``'django.contrib.sessions'`` to your ``INSTALLED_APPS`` setting.
-If you want to store your session data on a database other than ``default``
-alias, you should set the :setting:`SESSION_DB_ALIAS` setting.
Once you have configured your installation, run `` syncdb``
to install the single database table that stores session data.
-.. versionadded:: 1.2
- The :setting:`SESSION_DB_ALIAS` setting was added in Django 1.2. It
- is not required in earlier versions.
Using cached sessions

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