blob: 693e7c925839259f8a7490c3823717184a848cd2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
# Copyright (C) 2011-2016 by the Free Software Foundation, Inc.
#
# This file is part of GNU Mailman.
#
# GNU Mailman is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# GNU Mailman 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 General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# GNU Mailman. If not, see <http://www.gnu.org/licenses/>.
"""PostgreSQL database support."""
__all__ = [
'PostgreSQLDatabase',
]
from mailman.database.base import SABaseDatabase
from mailman.database.model import Model
from sqlalchemy import Integer
class PostgreSQLDatabase(SABaseDatabase):
"""Database class for PostgreSQL."""
def _post_reset(self, store):
"""PostgreSQL-specific test suite cleanup.
Reset the <tablename>_id_seq.last_value so that primary key ids
restart from zero for new tests.
"""
super(PostgreSQLDatabase, self)._post_reset(store)
tables = reversed(Model.metadata.sorted_tables)
# Recipe adapted from
# http://stackoverflow.com/questions/544791/
# django-postgresql-how-to-reset-primary-key
for table in tables:
for column in table.primary_key:
if (column.autoincrement
and isinstance(column.type, Integer)
and not column.foreign_keys):
store.execute("""\
SELECT setval('"{0}_{1}_seq"', coalesce(max("{1}"), 1),
max("{1}") IS NOT null)
FROM "{0}";
""".format(table, column.name))
|
