Merge branch 'master' into debian-r

[dak.git] / dak / dakdb / update91.py

diff --git a/dak/dakdb/update91.py b/dak/dakdb/update91.py
new file mode 100644 (file)
index 0000000..7cd278b
--- /dev/null
+++ b/dak/dakdb/update91.py
@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+# coding=utf8
+
+"""
+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()
+""",
+]
+
+################################################################################
+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))