Source Code for Module dak.dakdb.update104

 1  """ 
 2  Drop created and modified columns from bin_contents and src_contents 
 3   
 4  @contact: Debian FTP Master <ftpmaster@debian.org> 
 5  @copyright: 2014, Ansgar Burchardt <ansgar@debian.org> 
 6  @license: GNU General Public License version 2 or later 
 7  """ 
 8   
 9  # This program is free software; you can redistribute it and/or modify 
10  # it under the terms of the GNU General Public License as published by 
11  # the Free Software Foundation; either version 2 of the License, or 
12  # (at your option) any later version. 
13   
14  # This program is distributed in the hope that it will be useful, 
15  # but WITHOUT ANY WARRANTY; without even the implied warranty of 
16  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
17  # GNU General Public License for more details. 
18   
19  # You should have received a copy of the GNU General Public License 
20  # along with this program; if not, write to the Free Software 
21  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
22   
23  ################################################################################ 
24   
25  import psycopg2 
26  from daklib.dak_exceptions import DBUpdateError 
27  from daklib.config import Config 
28   
29  statements = [ 
30  "DROP TRIGGER IF EXISTS modified_bin_contents ON bin_contents", 
31  "ALTER TABLE bin_contents DROP COLUMN created, DROP COLUMN modified", 
32  "DROP TRIGGER IF EXISTS modified_src_contents ON src_contents", 
33  "ALTER TABLE src_contents DROP COLUMN created, DROP COLUMN modified", 
34  ] 
35   
36  ################################################################################ 
37   
38   
39 -def do_update(self): 
40      print(__doc__) 
41      try: 
42          cnf = Config() 
43   
44          c = self.db.cursor() 
45   
46          for stmt in statements: 
47              c.execute(stmt) 
48   
49          c.execute("UPDATE config SET value = '104' WHERE name = 'db_revision'") 
50          self.db.commit() 
51   
52      except psycopg2.ProgrammingError as msg: 
53          self.db.rollback() 
54          raise DBUpdateError('Unable to apply sick update 104, rollback issued. Error message: {0}'.format(msg)) 
55