1 files changed, 78 insertions, 0 deletions
diff --git a/mediagoblin/db/mongo/open.py b/mediagoblin/db/mongo/open.py
new file mode 100644
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+++ b/mediagoblin/db/mongo/open.py
@@ -0,0 +1,78 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import pymongo
+import mongokit
+from paste.deploy.converters import asint
+from mediagoblin.db.mongo import models
+from mediagoblin.db.mongo.util import MigrationManager
+
+
+def connect_database_from_config(app_config, use_pymongo=False):
+    """
+    Connect to the main database, take config from app_config
+
+    Optionally use pymongo instead of mongokit for the connection.
+    """
+    port = app_config.get('db_port')
+    if port:
+        port = asint(port)
+
+    if use_pymongo:
+        connection = pymongo.Connection(
+            app_config.get('db_host'), port)
+    else:
+        connection = mongokit.Connection(
+            app_config.get('db_host'), port)
+    return connection
+
+
+def setup_connection_and_db_from_config(app_config, use_pymongo=False):
+    """
+    Setup connection and database from config.
+
+    Optionally use pymongo instead of mongokit.
+    """
+    connection = connect_database_from_config(app_config, use_pymongo)
+    database_path = app_config['db_name']
+    db = connection[database_path]
+
+    if not use_pymongo:
+        models.register_models(connection)
+
+    return (connection, db)
+
+
+def check_db_migrations_current(db):
+    # This MUST be imported so as to set up the appropriate migrations!
+    from mediagoblin.db.mongo import migrations
+
+    # Init the migration number if necessary
+    migration_manager = MigrationManager(db)
+    migration_manager.install_migration_version_if_missing()
+
+    # Tiny hack to warn user if our migration is out of date
+    if not migration_manager.database_at_latest_migration():
+        db_migration_num = migration_manager.database_current_migration()
+        latest_migration_num = migration_manager.latest_migration()
+        if db_migration_num < latest_migration_num:
+            print (
+                "*WARNING:* Your migrations are out of date, "
+                "maybe run ./bin/gmg migrate?")
+        elif db_migration_num > latest_migration_num:
+            print (
+                "*WARNING:* Your migrations are out of date... "
+                "in fact they appear to be from the future?!")