mediagoblin/db/migrations.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011 Free Software Foundation, Inc
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU Affero General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU Affero General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU Affero General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 from mediagoblin.db.util import RegisterMigration
  18 from mediagoblin.util import cleaned_markdown_conversion
  19
  20
  21 # Please see mediagoblin/tests/test_migrations.py for some examples of
  22 # basic migrations.
  23
  24
  25 @RegisterMigration(1)
  26 def user_add_bio_html(database):
  27     """
  28     Users now have richtext bios via Markdown, reflect appropriately.
  29     """
  30     collection = database['users']
  31
  32     target = collection.find(
  33         {'bio_html': {'$exists': False}})
  34
  35     for document in target:
  36         document['bio_html'] = cleaned_markdown_conversion(
  37             document['bio'])
  38         collection.save(document)
  39
  40
  41 @RegisterMigration(2)
  42 def mediaentry_mediafiles_main_to_original(database):
  43     """
  44     Rename "main" media file to "original".
  45     """
  46     collection = database['media_entries']
  47     target = collection.find(
  48         {'media_files.main': {'$exists': True}})
  49
  50     for document in target:
  51         original = document['media_files'].pop('main')
  52         document['media_files']['original'] = original
  53
  54         collection.save(document)
  55
  56
  57 @RegisterMigration(3)
  58 def mediaentry_remove_thumbnail_file(database):
  59     """
  60     Use media_files['thumb'] instead of media_entries['thumbnail_file']
  61     """
  62     database['media_entries'].update(
  63         {'thumbnail_file': {'$exists': True}},
  64         {'$unset': {'thumbnail_file': 1}},
  65         multi=True)
  66
  67
  68 @RegisterMigration(4)
  69 def mediaentry_add_queued_task_id(database):
  70     """
  71     Add the 'queued_task_id' field for entries that don't have it.
  72     """
  73     collection = database['media_entries']
  74     collection.update(
  75         {'queued_task_id': {'$exists': False}},
  76         {'$set': {'queued_task_id': None}},
  77         multi=True)
  78
  79
  80 @RegisterMigration(5)
  81 def mediaentry_add_fail_error_and_metadata(database):
  82     """
  83     Add 'fail_error' and 'fail_metadata' fields to media entries
  84     """
  85     collection = database['media_entries']
  86     collection.update(
  87         {'fail_error': {'$exists': False}},
  88         {'$set': {'fail_error': None}},
  89         multi=True)
  90
  91     collection.update(
  92         {'fail_metadata': {'$exists': False}},
  93         {'$set': {'fail_metadata': {}}},
  94         multi=True)