"""消息关联 Run

Revision ID: 1c1f7edb7cbe
Revises: 0fb7d605080a
Create Date: 2026-09-11 09:24:35.912343

"""
from collections.abc import Sequence

import sqlalchemy as sa

from alembic import op

# revision identifiers, used by Alembic.
revision: str = '1c1f7edb7cbe'
down_revision: str | Sequence[str] | None = '0fb7d605080a'
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    """Upgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('message', sa.Column('run_id', sa.String(), nullable=True))
    op.create_index(op.f('ix_message_run_id'), 'message', ['run_id'], unique=False)
    op.create_foreign_key(op.f('fk_message_run'), 'message', 'run', ['run_id'], ['id'], ondelete='set null')
    # ### end Alembic commands ###


def downgrade() -> None:
    """Downgrade schema."""
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint(op.f('fk_message_run'), 'message', type_='foreignkey')
    op.drop_index(op.f('ix_message_run_id'), table_name='message')
    op.drop_column('message', 'run_id')
    # ### end Alembic commands ###