From: Elrond <elrond+mediagoblin.org@samba-tng.org>
Date: Sun, 25 Dec 2011 19:03:11 +0000 (+0100)
Subject: Implement _id proxy on sql objects (on User for now)
X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=19ed039ba6d65cecfd6e8ad6e47b5cb008350b04;p=mediagoblin.git

Implement _id proxy on sql objects (on User for now)

So that the old code can access the primary key still as
"._id".

Quite simple Python Descriptor thing.
Very generic.
---

diff --git a/mediagoblin/db/sql/models.py b/mediagoblin/db/sql/models.py
index b87ff3aa..68b078a5 100644
--- a/mediagoblin/db/sql/models.py
+++ b/mediagoblin/db/sql/models.py
@@ -11,6 +11,18 @@ from mediagoblin.db.sql.base import GMGTableBase
 Base = declarative_base(cls=GMGTableBase)
 
 
+class SimpleFieldAlias(object):
+    """An alias for any field"""
+    def __init__(self, fieldname):
+        self.fieldname = fieldname
+
+    def __get__(self, instance, cls):
+        return getattr(instance, self.fieldname)
+
+    def __set__(self, instance, val):
+        setattr(instance, self.fieldname, val)
+
+
 class User(Base):
     __tablename__ = "users"
 
@@ -32,6 +44,8 @@ class User(Base):
     ## TODO
     # plugin data would be in a separate model
 
+    _id = SimpleFieldAlias("id")
+
 
 class MediaEntry(Base):
     __tablename__ = "media_entries"