""" Revision ID: 0194_ft_billing_created_at Revises: 0193_add_ft_billing_timestamps Create Date: 2018-05-22 14:34:27.852096 """ import sqlalchemy as sa from alembic import op from sqlalchemy.dialects import postgresql revision = "0194_ft_billing_created_at" down_revision = "0193_add_ft_billing_timestamps" def upgrade(): op.execute("UPDATE ft_billing SET created_at = NOW()") op.alter_column("ft_billing", "created_at", nullable=False) def downgrade(): op.alter_column("ft_billing", "created_at", nullable=True) op.execute("UPDATE ft_billing SET created_at = null")