Add coupon.expires_date column

app/models.py

@@ -2147,6 +2147,9 @@ class Coupon(Base, ModelMixin):
 
     comment = sa.Column(sa.Text, nullable=True)
 
+    # a coupon can have an expiration
+    expires_date = sa.Column(ArrowType, nullable=True)
+
 
 class Directory(Base, ModelMixin):
     __tablename__ = "directory"

migrations/versions/2021_112618_4b483a762fed_.py

@@ -0,0 +1,29 @@
+"""empty message
+
+Revision ID: 4b483a762fed
+Revises: d0ccd9d7ac0c
+Create Date: 2021-11-26 18:09:58.148317
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '4b483a762fed'
+down_revision = 'd0ccd9d7ac0c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('coupon', sa.Column('expires_date', sqlalchemy_utils.types.arrow.ArrowType(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('coupon', 'expires_date')
+    # ### end Alembic commands ###