From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Fri, 3 Feb 2006 01:03:00 +0000 (+0000)
Subject: fixed set() to not re-set the same value
X-Git-Tag: rel_0_1_0~75
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38eea593ed64fa848aa903c26c46f8ac0d78c007;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

fixed set() to not re-set the same value
---

diff --git a/lib/sqlalchemy/attributes.py b/lib/sqlalchemy/attributes.py
index 29a79edd24..f2480918d4 100644
--- a/lib/sqlalchemy/attributes.py
+++ b/lib/sqlalchemy/attributes.py
@@ -77,7 +77,10 @@ class PropHistory(object):
     def setattr(self, value):
         if isinstance(value, list):
             raise ("assigning a list to scalar property '%s' on '%s' instance %d" % (self.key, self.obj.__class__.__name__, id(self.obj)))
-        self.orig = self.obj.__dict__.get(self.key, None)
+        orig = self.obj.__dict__.get(self.key, None)
+        if orig is value:
+            return
+        self.orig = orig
         self.obj.__dict__[self.key] = value
         if self.extension is not None and self.orig is not value:
             self.extension.set(self.obj, value, self.orig)