[IMP] mis_builder: migration script to populate new column root_account

mis_builder/__openerp__.py

@@ -24,7 +24,7 @@
 
 {
     'name': 'MIS Builder',
-    'version': '0.1',
+    'version': '0.2',
     'category': 'Reporting',
     'summary': """
         Build 'Management Information System' Reports and Dashboards

mis_builder/migrations/8.0.0.2/pre-migration.py

@@ -0,0 +1,41 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    mis_builder module for Odoo, Management Information System Builder
+#    Copyright (C) 2014-2015 ACSONE SA/NV (<http://acsone.eu>)
+#
+#    This file is a part of mis_builder
+#
+#    mis_builder is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License v3 or later
+#    as published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    mis_builder is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License v3 or later for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    v3 or later along with this program.
+#    If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+def migrate(cr, version):
+    if not version:
+        return
+
+    cr.execute("""
+        ALTER TABLE mis_report_instance
+        ADD COLUMN root_account INTEGER
+        """)
+    cr.execute("""
+        UPDATE mis_report_instance
+        SET root_account = (
+            SELECT id FROM account_account
+            WHERE parent_id IS NULL
+              AND company_id = mis_report_instance.company_id
+            LIMIT 1
+        )
+        """)