Source code for dak.dakdb.update91
"""
per-queue NEW comments and permissions
@contact: Debian FTP Master <ftpmaster@debian.org>
@copyright: 2012 Ansgar Burchardt <ansgar@debian.org>
@license: GNU General Public License version 2 or later
"""
# This program 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 2 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 Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
################################################################################
import psycopg2
from daklib.dak_exceptions import DBUpdateError
from daklib.config import Config
statements = [
"""
ALTER TABLE new_comments
ADD COLUMN policy_queue_id INTEGER REFERENCES policy_queue(id)
""",
"""
UPDATE new_comments
SET policy_queue_id = (SELECT id FROM policy_queue WHERE queue_name = 'new')
""",
"""
ALTER TABLE new_comments ALTER COLUMN policy_queue_id SET NOT NULL
""",
"""
CREATE OR REPLACE FUNCTION trigger_check_policy_queue_permission() RETURNS TRIGGER
SET search_path = public, pg_temp
LANGUAGE plpgsql
AS $$
DECLARE
v_row RECORD;
v_suite_id suite.id%TYPE;
v_policy_queue_name policy_queue.queue_name%TYPE;
BEGIN
CASE TG_OP
WHEN 'INSERT', 'UPDATE' THEN
v_row := NEW;
WHEN 'DELETE' THEN
v_row := OLD;
ELSE
RAISE EXCEPTION 'Unexpected TG_OP (%)', TG_OP;
END CASE;
IF TG_OP = 'UPDATE' AND OLD.policy_queue_id != NEW.policy_queue_id THEN
RAISE EXCEPTION 'Cannot change policy_queue_id';
END IF;
SELECT suite_id, queue_name INTO STRICT v_suite_id, v_policy_queue_name
FROM policy_queue WHERE id = v_row.policy_queue_id;
IF NOT has_suite_permission(TG_OP, v_suite_id) THEN
RAISE EXCEPTION 'Not allowed to % in %', TG_OP, v_policy_queue_name;
END IF;
RETURN v_row;
END;
$$
""",
"""
CREATE CONSTRAINT TRIGGER trigger_new_comments_permission
AFTER INSERT OR UPDATE OR DELETE
ON new_comments
FOR EACH ROW
EXECUTE PROCEDURE trigger_check_policy_queue_permission()
""",
]
################################################################################
[docs]def do_update(self):
print(__doc__)
try:
cnf = Config()
c = self.db.cursor()
for stmt in statements:
c.execute(stmt)
c.execute("UPDATE config SET value = '91' WHERE name = 'db_revision'")
self.db.commit()
except psycopg2.ProgrammingError as msg:
self.db.rollback()
raise DBUpdateError('Unable to apply sick update 91, rollback issued. Error message: {0}'.format(msg))