# HG changeset patch
# User Julien Cristau <julien.cristau@logilab.fr>
# Date 1415106602 -3600
# Node ID 2a08247b57fbb03a4748d06466deaf6ee264b673
# Parent  c3ab46842b2d50ed4632ae3dba2f57c98f94743a
[server] commit after serializing schema

Use separate transactions for schema serialization and postcreate
scripts execution, so that the latter can rely on the schema being
persistently stored.  This matters e.g. if something in a postcreate
violates a unique_together constraint, we need the constraint persisted
in order to raise a meaningful error.  See #4525069.

diff -r c3ab46842b2d -r 2a08247b57fb server/__init__.py
--- a/server/__init__.py	Thu Aug 28 18:54:21 2014 +0200
+++ b/server/__init__.py	Tue Nov 04 14:10:02 2014 +0100
@@ -329,6 +329,7 @@
         mhandler.cmd_exec_event_script('pre%s' % event, apphome=True)
         # enter instance'schema into the database
         serialize_schema(cnx, schema)
+        cnx.commit()
         # execute cubicweb's post<event> script
         mhandler.cmd_exec_event_script('post%s' % event)
         # execute cubes'post<event> script if any