job on notification now nullable.

migrations/versions/0014_job_id_nullable.py

@@ -0,0 +1,30 @@
+"""empty message
+
+Revision ID: 0014_job_id_nullable
+Revises: 0013_add_notifications
+Create Date: 2016-02-10 10:57:39.414061
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0014_job_id_nullable'
+down_revision = '0013_add_notifications'
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('notifications', 'job_id',
+               existing_type=postgresql.UUID(),
+               nullable=True)
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('notifications', 'job_id',
+               existing_type=postgresql.UUID(),
+               nullable=False)
+    ### end Alembic commands ###