Add a maintenance notification kind and make it of the level warning.

data/migrations/versions/4b7ef0c7bdb2_add_the_maintenance_notification_type.py

@@ -0,0 +1,33 @@
+"""Add the maintenance notification type.
+
+Revision ID: 4b7ef0c7bdb2
+Revises: bcdde200a1b
+Create Date: 2014-06-27 19:09:56.387534
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '4b7ef0c7bdb2'
+down_revision = 'bcdde200a1b'
+
+from alembic import op
+from data.model.sqlalchemybridge import gen_sqlalchemy_metadata
+from data.database import all_models
+import sqlalchemy as sa
+
+
+def upgrade():
+    schema = gen_sqlalchemy_metadata(all_models)
+    op.bulk_insert(schema.tables['notificationkind'],
+    [
+        {'id':4, 'name':'maintenance'},
+    ])
+
+
+def downgrade():
+    notificationkind = schema.tables['notificationkind']
+    op.execute(
+        (notificationkind.delete()
+            .where(notificationkind.c.name == op.inline_literal('maintenance')))
+
+    )