mediagoblin/db/sql/open.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
   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
  18 from sqlalchemy import create_engine
  19 import logging
  20
  21 from mediagoblin.db.sql.base import Session
  22 from mediagoblin.db.sql.models import Base
  23
  24
  25 class DatabaseMaster(object):
  26     def __init__(self, engine):
  27         self.engine = engine
  28
  29         for k, v in Base._decl_class_registry.iteritems():
  30             setattr(self, k, v)
  31
  32     def commit(self):
  33         Session.commit()
  34
  35     def save(self, obj):
  36         Session.add(obj)
  37         Session.flush()
  38
  39     def reset_after_request(self):
  40         Session.rollback()
  41         Session.remove()
  42
  43
  44 def setup_connection_and_db_from_config(app_config):
  45     engine = create_engine(app_config['sql_engine'])
  46     logging.getLogger('sqlalchemy.engine').setLevel(logging.INFO)
  47     Session.configure(bind=engine)
  48
  49     return "dummy conn", DatabaseMaster(engine)
  50
  51
  52 def check_db_migrations_current(db):
  53     pass