From: Mike O'Connor <stew@vireo.org>
Date: Sun, 10 Jan 2010 17:10:06 +0000 (-0500)
Subject: fixing triggers
X-Git-Url: https://git.decadent.org.uk/gitweb/?p=dak.git;a=commitdiff_plain;h=74a4234a2fdb0710ad3b32b913fa05889f34bb81

fixing triggers

Signed-off-by: Mike O'Connor <stew@vireo.org>
---

diff --git a/dak/dakdb/update31.py b/dak/dakdb/update31.py
new file mode 100644
index 00000000..8ebfe342
--- /dev/null
+++ b/dak/dakdb/update31.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+# coding=utf8
+
+"""
+keep contents of binary packages in tables so we can generate contents.gz files from dak
+
+@contact: Debian FTP Master <ftpmaster@debian.org>
+@copyright: 2009  Mike O'Connor <stew@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
+
+################################################################################
+def do_update(self):
+    """
+    add trigger to verify that bin_associations aren't added for an
+    illegal suite,arch combination.  Fix override trigger, re-add all
+    3 triggers
+    """
+    print __doc__
+    try:
+        c = self.db.cursor()
+
+        c.execute("""CREATE OR REPLACE FUNCTION check_illegal_suite_arch()
+                      RETURNS trigger AS  $$
+    event = TD["event"]
+    if event == "UPDATE" or event == "INSERT":
+        row = TD["new"]
+        r = plpy.execute(plpy.prepare( \"\"\"SELECT 1 from suite_architectures sa
+                  JOIN binaries b ON b.architecture = sa.architecture
+                  WHERE b.id = $1 and sa.suite = $2\"\"\",
+                ["int", "int"]),
+                [row["bin"], row["suite"]])
+        if not len(r):
+            plpy.error("Illegal architecture for this suite")
+
+$$ LANGUAGE plpythonu VOLATILE;""")
+
+        c.execute( """CREATE OR REPLACE FUNCTION update_contents_for_override() RETURNS trigger AS  $$
+    event = TD["event"]
+    if event == "UPDATE":
+
+        otype = plpy.execute(plpy.prepare("SELECT type from override_type where id=$1",["int"]),[TD["new"]["type"]] )[0];
+        if otype["type"].endswith("deb"):
+            section = plpy.execute(plpy.prepare("SELECT section from section where id=$1",["int"]),[TD["new"]["section"]] )[0];
+
+            table_name = "%s_contents" % otype["type"]
+            plpy.execute(plpy.prepare("UPDATE %s set section=$1 where package=$2 and suite=$3" % table_name,
+                                      ["text","text","int"]),
+                                      [section["section"],
+                                      TD["new"]["package"],
+                                      TD["new"]["suite"]])
+
+$$ LANGUAGE plpythonu VOLATILE SECURITY DEFINER;
+""")
+        c.execute( "DROP TRIGGER IF EXISTS illegal_suite_arch_bin_associations_trigger on bin_associations;" )
+
+        c.execute( "DROP TRIGGER IF EXISTS bin_associations_contents_trigger ON bin_associations;" )
+        c.execute( "DROP TRIGGER IF EXISTS override_contents_trigger ON override;" )
+
+        c.execute( """CREATE TRIGGER bin_associations_contents_trigger
+                      AFTER INSERT OR UPDATE OR DELETE ON bin_associations
+                      FOR EACH ROW EXECUTE PROCEDURE update_contents_for_bin_a();""")
+
+        c.execute("""CREATE TRIGGER override_contents_trigger
+                      AFTER UPDATE ON override
+                      FOR EACH ROW EXECUTE PROCEDURE update_contents_for_override();""")
+
+        c.execute( """CREATE TRIGGER illegal_suite_arch_bin_associations_trigger
+                      BEFORE INSERT OR UPDATE ON bin_associations
+                      FOR EACH ROW EXECUTE PROCEDURE check_illegal_suite_arch();""")
+
+        c.execute("UPDATE config SET value = '31' WHERE name = 'db_revision'")
+        self.db.commit()
+
+    except psycopg2.ProgrammingError, msg:
+        self.db.rollback()
+        raise DBUpdateError, "Unable to apply process-new update 31, rollback issued. Error message : %s" % (str(msg))
+