# HG changeset patch
# User Julien Cristau <julien.cristau@logilab.fr>
# Date 1455714095 -3600
# Node ID ceb0e8e9129e929028cc50a70cc50688f653cb54
# Parent  20b2e7ceecf6b8e5fe9e9bbe27407134ed000f0c
[migration] add rollback when replace_eid_sequence_with_eid_numrange fails

If we get here, the current transaction is aborted, so if we are to
assume everything is fine and continue we need to rollback first.

diff -r 20b2e7ceecf6 -r ceb0e8e9129e cubicweb/misc/migration/bootstrapmigration_repository.py
--- a/cubicweb/misc/migration/bootstrapmigration_repository.py	Wed Feb 17 14:03:56 2016 +0100
+++ b/cubicweb/misc/migration/bootstrapmigration_repository.py	Wed Feb 17 14:01:35 2016 +0100
@@ -45,6 +45,7 @@
         cursor.execute(dbh.sql_sequence_current_state('entities_id_seq'))
         lasteid = cursor.fetchone()[0]
     except: # programming error, already migrated
+        session.rollback()
         return
 
     cursor.execute(dbh.sql_drop_sequence('entities_id_seq'))