"""add slug

Revision ID: 29ccbe077c57
Revises: 55013fe95bea
Create Date: 2022-05-20 19:46:11.924218

"""

# revision identifiers, used by Alembic.
revision = '29ccbe077c57'
down_revision = '55013fe95bea'

from alembic import op
import sqlalchemy as sa

def upgrade():
    op.add_column('order', sa.Column('slug', sa.String(length=7), nullable=True))
    op.create_unique_constraint(None, 'order', ['slug'])


def downgrade():
    op.drop_constraint(None, 'order', type_='unique')
    op.drop_column('order', 'slug')