"""Add email_unsubscribe_token to users

Revision ID: 0019
Revises: 0018
"""
from alembic import op
import sqlalchemy as sa

revision = "0019"
down_revision = "0018"
branch_labels = None
depends_on = None


def upgrade():
    op.add_column("users", sa.Column("email_unsubscribe_token", sa.String(64), nullable=True))
    op.create_index("ix_users_email_unsubscribe_token", "users", ["email_unsubscribe_token"], unique=True)


def downgrade():
    op.drop_index("ix_users_email_unsubscribe_token", table_name="users")
    op.drop_column("users", "email_unsubscribe_token")