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   
27  from daklib.dak_exceptions import DBUpdateError 
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          c = self.db.cursor() 
43   
44          for stmt in statements: 
45              c.execute(stmt) 
46   
47          c.execute("UPDATE config SET value = '104' WHERE name = 'db_revision'") 
48          self.db.commit() 
49   
50      except psycopg2.ProgrammingError as msg: 
51          self.db.rollback() 
52          raise DBUpdateError( 
53              "Unable to apply sick update 104, rollback issued. Error message: {0}".format( 
54                  msg 
55              ) 
56          ) 
57