# HG changeset patch
# User Sylvain Thénault <sylvain.thenault@logilab.fr>
# Date 1308753267 -7200
# Node ID 465009397d91972416f8eb0646f0c50674a486df
# Parent  7f321b7db8daab46f1bba8339e853d3bb49b07aa
[migration] don't add CWUniqueConstraint if already there (may occurs when running a migration in multiple times

diff -r 7f321b7db8da -r 465009397d91 misc/migration/bootstrapmigration_repository.py
--- a/misc/migration/bootstrapmigration_repository.py	Tue Jun 21 15:34:15 2011 +0200
+++ b/misc/migration/bootstrapmigration_repository.py	Wed Jun 22 16:34:27 2011 +0200
@@ -1,4 +1,4 @@
-# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
 #
 # This file is part of CubicWeb.
@@ -94,7 +94,7 @@
             drop_relation_definition('CWRType', '%s_permission' % action, 'RQLExpression')
     sync_schema_props_perms('read_permission', syncperms=False) # fix read_permission cardinality
 
-if applcubicwebversion < (3, 9, 6) and cubicwebversion >= (3, 9, 6):
+if applcubicwebversion < (3, 9, 6) and cubicwebversion >= (3, 9, 6) and not 'CWUniqueTogetherConstraint' in schema:
     add_entity_type('CWUniqueTogetherConstraint')
 
 if not ('CWUniqueTogetherConstraint', 'CWRType') in schema['relations'].rdefs: