From 0eeff6f402da829d106b63d1a0f1be46a4f0e874 Mon Sep 17 00:00:00 2001
From: Ilgiz Islamgulov <ilgizisl@gmail.com>
Date: Aug 16 2013 15:24:26 +0000
Subject: added spin type constraint migrate


---

diff --git a/alembic/versions/f9e369bf00d_added_spin_type_cons.py b/alembic/versions/f9e369bf00d_added_spin_type_cons.py
new file mode 100644
index 0000000..37422b0
--- /dev/null
+++ b/alembic/versions/f9e369bf00d_added_spin_type_cons.py
@@ -0,0 +1,27 @@
+"""Added spin_type constraint
+
+Revision ID: f9e369bf00d
+Revises: 1162fb4d4358
+Create Date: 2013-08-16 20:14:05.365481
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'f9e369bf00d'
+down_revision = '1162fb4d4358'
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.sql import column
+
+
+def upgrade():
+    op.create_check_constraint(
+        "ck_spin_type",
+        "spin",
+        column('name').in_(['TC', 'smoke', 'RC'])
+    )
+
+
+def downgrade():
+    op.drop_constraint('ck_spin_type', 'spin')