Source Code for Module dak.dakdb.update101

 1  """ 
 2  Add column to store compression type of indices 
 3   
 4  @contact: Debian FTP Master <ftpmaster@debian.org> 
 5  @copyright: 2012, 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   
27  from daklib.dak_exceptions import DBUpdateError 
28   
29  ################################################################################ 
30   
31   
32 -def do_update(self): 
33      """ 
34      Add column to store compression type of indices 
35      """ 
36      print(__doc__) 
37      try: 
38          c = self.db.cursor() 
39   
40          c.execute( 
41              """ 
42            ALTER TABLE suite 
43              ADD COLUMN indices_compression TEXT[] DEFAULT ARRAY['gzip', 'bzip2'], 
44              ADD COLUMN i18n_compression TEXT[] DEFAULT ARRAY['bzip2'] 
45          """ 
46          ) 
47   
48          c.execute( 
49              """ 
50            ALTER TABLE suite 
51              ALTER COLUMN indices_compression DROP DEFAULT, 
52              ALTER COLUMN i18n_compression DROP DEFAULT 
53          """ 
54          ) 
55   
56          c.execute("UPDATE config SET value = '101' WHERE name = 'db_revision'") 
57          self.db.commit() 
58   
59      except psycopg2.ProgrammingError as msg: 
60          self.db.rollback() 
61          raise DBUpdateError( 
62              "Unable to apply sick update 101, rollback issued. Error message : %s" 
63              % (str(msg)) 
64          ) 
65