Fixed #7967 -- Make sure the __contains__ method in the cache backends call the

right has_key() method for the subclass. Patch from Marty Alchin.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8084 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 8 insertions, 1 deletions

diff --git a/django/core/cache/backends/base.py b/django/core/cache/backends/base.py
index ff4223bf86..58e166d655 100644
--- a/django/core/cache/backends/base.py
+++ b/django/core/cache/backends/base.py
@@ -63,4 +63,11 @@ class BaseCache(object):
         """
         return self.get(key) is not None
 
-    __contains__ = has_key
+    def __contains__(self, key):
+        """
+        Returns True if the key is in the cache and has not expired.
+        """
+        # This is a separate method, rather than just a copy of has_key(),
+        # so that it always has the same functionality as has_key(), even
+        # if a subclass overrides it.
+        return self.has_key(key)