"""Capture an optional email address on guest drafts.

Revision ID: 170
Revises: 169
"""
from alembic import op
import sqlalchemy as sa

revision = "170"
down_revision = "169"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.add_column("guest_drafts", sa.Column("email", sa.String(320), nullable=True))
    op.create_index("idx_guest_drafts_email", "guest_drafts", ["email"])


def downgrade() -> None:
    op.drop_index("idx_guest_drafts_email", table_name="guest_drafts")
    op.drop_column("guest_drafts", "email")