"""predictions 增加备选比分字段

Revision ID: 0011_prediction_alt_scores
Revises: 0010_app_settings
Create Date: 2026-09-19

"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa

revision: str = '0011_prediction_alt_scores'
down_revision: Union[str, None] = '0010_app_settings'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column('predictions', sa.Column('alt_pred_home_goals', sa.Integer(), nullable=True))
    op.add_column('predictions', sa.Column('alt_pred_away_goals', sa.Integer(), nullable=True))


def downgrade() -> None:
    op.drop_column('predictions', 'alt_pred_away_goals')
    op.drop_column('predictions', 'alt_pred_home_goals')