From 78e56ce3bfabc19c39796dd1b96a04a803ebb57c Mon Sep 17 00:00:00 2001
From: mdipierro <massimo.dipierro@gmail.com>
Date: Wed, 1 Aug 2012 17:04:40 -0500
Subject: [PATCH] avoid attemts to duplicate archive tables

---
 VERSION      | 2 +-
 gluon/dal.py | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/VERSION b/VERSION
index 77c9380a..db26717e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-Version 2.00.0 (2012-08-01 12:01:12) dev
+Version 2.00.0 (2012-08-01 17:04:35) dev
diff --git a/gluon/dal.py b/gluon/dal.py
index a20579f0..892ecaee 100644
--- a/gluon/dal.py
+++ b/gluon/dal.py
@@ -7290,8 +7290,10 @@ class Table(dict):
                                   current_record = 'current_record',
                                   is_active = 'is_active'):
         archive_db = archive_db or self._db
-        fieldnames = self.fields()
         archive_name = archive_name % dict(tablename=self._tablename)
+        if archive_name in archive_db.tables():
+            return # do not try define the archive if already exists
+        fieldnames = self.fields()        
         field_type = self if archive_db is self._db else 'bigint'
         archive_table = archive_db.define_table(
             archive_name,