mirror of
https://github.com/ae-utbm/sith.git
synced 2024-12-22 07:41:14 +00:00
52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
#
|
|
# Copyright 2016,2017
|
|
# - Sli <antoine@bartuccio.fr>
|
|
#
|
|
# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
|
|
# http://ae.utbm.fr.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify it under
|
|
# the terms of the GNU General Public License a 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 General Public License for more
|
|
# details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along with
|
|
# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
|
|
# Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
#
|
|
#
|
|
|
|
"""Collection of utils for custom migration tricks.
|
|
|
|
Sometimes, when you need to have a migration hack,
|
|
and you think it can be useful again,
|
|
put it there, we never know if we might need the hack again.
|
|
"""
|
|
|
|
from django.db import connection, migrations
|
|
|
|
|
|
class PsqlRunOnly(migrations.RunSQL):
|
|
"""SQL runner for PostgreSQL-only queries.
|
|
|
|
It may be useful to run Postgres' specific SQL, or to take actions
|
|
that would be non-senses with backends other than Postgre, such
|
|
as disabling particular constraints that would prevent the migration
|
|
to run successfully.
|
|
|
|
If used on another DBMS than Postgres, it will be a noop.
|
|
|
|
See `club/migrations/0010_auto_20170912_2028.py` as an example.
|
|
Some explanations can be found here too:
|
|
https://stackoverflow.com/questions/28429933/django-migrations-using-runpython-to-commit-changes
|
|
"""
|
|
|
|
def _run_sql(self, schema_editor, sqls):
|
|
if connection.vendor == "postgresql":
|
|
super()._run_sql(schema_editor, sqls)
|