From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Thu, 26 Jan 2006 00:25:36 +0000 (+0000)
Subject: ai more reasonable hash_key that works across serializations
X-Git-Tag: rel_0_1_0~106
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ffcd60ac6eadd5a7fe30c2654077983e42b488a1;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

ai more reasonable hash_key that works across serializations
might want to get the DB password out of it tho....
---

diff --git a/lib/sqlalchemy/engine.py b/lib/sqlalchemy/engine.py
index 72c8c8a94d..d384ba2b39 100644
--- a/lib/sqlalchemy/engine.py
+++ b/lib/sqlalchemy/engine.py
@@ -184,6 +184,9 @@ class SQLEngine(schema.SchemaEngine):
         else:
             self.logger = logger
 
+    def hash_key(self):
+        return "%s(%s)" % (self.__class__.__name__, repr(self.connect_args()))
+        
     def dispose(self):
         """disposes of the underlying pool manager for this SQLEngine."""
         (cargs, cparams) = self.connect_args()
@@ -698,3 +701,5 @@ class RowProxy:
         except:
             raise AttributeError
 
+
+
diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py
index e2059f29f5..c55d9034a0 100644
--- a/lib/sqlalchemy/schema.py
+++ b/lib/sqlalchemy/schema.py
@@ -154,6 +154,12 @@ class Table(SchemaItem):
         ["%s=%s" % (k, repr(getattr(self, k))) for k in ['schema']]
        , ',\n')
     
+    def hash_key(self):
+        return "Table(%s)" % string.join(
+        [repr(self.name)] + [self.engine.hash_key()] +
+        ["%s=%s" % (k, repr(getattr(self, k))) for k in ['schema']], ','
+        )
+        
     def reload_values(self, *args):
         """clears out the columns and other properties of this Table, and reloads them from the 
         given argument list.  This is used with the "redefine" keyword argument sent to the