[IMP] Support migration of V5.0 payment types

[IMP] Migration 5.0: also rename the old reconcile_id column on statement lines

account_banking/__terp__.py

@@ -25,7 +25,7 @@
 ##############################################################################
 {
     'name': 'Account Banking',
-    'version': '0.1.62',
+    'version': '0.1.78',
     'license': 'GPL-3',
     'author': 'EduSense BV',
     'website': 'http://www.edusense.nl',

account_banking/migrations/0.1.78/pre-move_payment_type.py

@@ -0,0 +1,94 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    This module copyright (C) 2011-2012 Therp BV (<http://therp.nl>)
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program 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 for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+import logging
+logger = logging.getLogger('Migration: account_banking')
+
+# methods from openupgrade. Need a proper python library
+def table_exists(cr, table):
+    """ Check whether a certain table or view exists """
+    cr.execute(
+        'SELECT count(relname) FROM pg_class WHERE relname = %s',
+        (table,))
+    return cr.fetchone()[0] == 1
+
+def rename_models(cr, model_spec):
+    """
+    Rename models. Typically called in the pre script.
+    :param model_spec: a list of tuples (old model name, new model name).
+    
+    Use case: if a model changes name, but still implements equivalent
+    functionality you will want to update references in for instance
+    relation fields.
+
+    """
+    for (old, new) in model_spec:
+        logger.info("model %s: renaming to %s",
+                    old, new)
+        cr.execute('UPDATE ir_model_fields SET relation = %s '
+                   'WHERE relation = %s', (new, old,))
+        cr.execute('UPDATE ir_model_data SET model = %s '
+                   'WHERE model = %s', (new, old,))
+
+def rename_tables(cr, table_spec):
+    """
+    Rename tables. Typically called in the pre script.
+    This function also renames the id sequence if it exists and if it is
+    not modified in the same run.
+
+    :param table_spec: a list of tuples (old table name, new table name).
+
+    """
+    # Append id sequences
+    to_rename = [x[0] for x in table_spec]
+    for old, new in list(table_spec):
+        if (table_exists(cr, old + '_id_seq') and
+            old + '_id_seq' not in to_rename): 
+            table_spec.append((old + '_id_seq', new + '_id_seq'))
+    for (old, new) in table_spec:
+        logger.info("table %s: renaming to %s",
+                    old, new)
+        cr.execute('ALTER TABLE "%s" RENAME TO "%s"' % (old, new,))
+
+def rename_columns(cr, column_spec):
+    """
+    Rename table columns. Typically called in the pre script.
+
+    :param column_spec: a hash with table keys, with lists of tuples as values. \
+    Tuples consist of (old_name, new_name).
+
+    """
+    for table in column_spec.keys():
+        for (old, new) in column_spec[table]:
+            logger.info("table %s, column %s: renaming to %s",
+                     table, old, new)
+            cr.execute('ALTER TABLE "%s" RENAME "%s" TO "%s"' % (table, old, new,))
+
+def migrate(cr, version):
+    """
+    Preserve references to Payment Type resources after renaming to
+    Payment Mode Type
+    """
+    if version and version.startswith('5.0.'):
+        rename_models(cr, [['payment.type', 'payment.mode.type']])
+        rename_tables(cr, [['payment_type', 'payment_mode_type']])
+        rename_columns(cr, {'account_bank_statement_line': [
+                    ('reconcile_id', 'legacy_bank_statement_reconcile_id')]})