1 # GNU MediaGoblin -- federated, autonomous media hosting
2 # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
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.
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.
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/>.
19 from sqlalchemy
.orm
import sessionmaker
21 from mediagoblin
.db
.open import setup_connection_and_db_from_config
22 from mediagoblin
.db
.migration_tools
import MigrationManager
23 from mediagoblin
.init
import setup_global_and_app_config
24 from mediagoblin
.tools
.common
import import_component
26 _log
= logging
.getLogger(__name__
)
28 _log
.setLevel(logging
.DEBUG
)
30 def dbupdate_parse_setup(subparser
):
34 class DatabaseData(object):
35 def __init__(self
, name
, models
, migrations
):
38 self
.migrations
= migrations
40 def make_migration_manager(self
, session
):
41 return MigrationManager(
42 self
.name
, self
.models
, self
.migrations
, session
)
45 def gather_database_data(media_types
, plugins
):
47 Gather all database data relevant to the extensions we have
48 installed so we can do migrations and table initialization.
50 Returns a list of DatabaseData objects.
55 from mediagoblin
.db
.models
import MODELS
as MAIN_MODELS
56 from mediagoblin
.db
.migrations
import MIGRATIONS
as MAIN_MIGRATIONS
58 managed_dbdata
.append(
60 u
'__main__', MAIN_MODELS
, MAIN_MIGRATIONS
))
62 # Then get all registered media managers (eventually, plugins)
63 for media_type
in media_types
:
64 models
= import_component('%s.models:MODELS' % media_type
)
65 migrations
= import_component('%s.migrations:MIGRATIONS' % media_type
)
66 managed_dbdata
.append(
67 DatabaseData(media_type
, models
, migrations
))
69 for plugin
in plugins
:
71 models
= import_component('{0}.models:MODELS'.format(plugin
))
72 except ImportError as exc
:
73 _log
.debug('No models found for {0}: {1}'.format(
78 except AttributeError as exc
:
79 _log
.warning('Could not find MODELS in {0}.models, have you \
80 forgotten to add it? ({1})'.format(plugin
, exc
))
83 migrations
= import_component('{0}.migrations:MIGRATIONS'.format(
85 except ImportError as exc
:
86 _log
.debug('No migrations found for {0}: {1}'.format(
91 except AttributeError as exc
:
92 _log
.debug('Cloud not find MIGRATIONS in {0}.migrations, have you \
93 forgotten to add it? ({1})'.format(plugin
, exc
))
96 managed_dbdata
.append(
97 DatabaseData(plugin
, models
, migrations
))
100 return managed_dbdata
103 def run_dbupdate(app_config
, global_config
):
105 Initialize or migrate the database as specified by the config file.
107 Will also initialize or migrate all extensions (media types, and
108 in the future, plugins)
111 # Gather information from all media managers / projects
112 dbdatas
= gather_database_data(
113 app_config
['media_types'],
114 global_config
.get('plugins', {}).keys())
116 # Set up the database
117 db
= setup_connection_and_db_from_config(app_config
, migrations
=True)
119 Session
= sessionmaker(bind
=db
.engine
)
121 # Setup media managers for all dbdata, run init/migrate and print info
122 # For each component, create/migrate tables
123 for dbdata
in dbdatas
:
124 migration_manager
= dbdata
.make_migration_manager(Session())
125 migration_manager
.init_or_migrate()
129 global_config
, app_config
= setup_global_and_app_config(args
.conf_file
)
130 run_dbupdate(app_config
, global_config
)