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MoviePilot/database/versions/d4f6a8c2e1b7_2_2_17.py
2026-08-10 08:11:54 +08:00

50 lines
1.4 KiB
Python

"""2.2.17
为整理历史保存音乐实体类型和专辑总曲目数
Revision ID: d4f6a8c2e1b7
Revises: c9d4e7f1a2b3
Create Date: 2026-08-10
"""
from alembic import op
import sqlalchemy as sa
revision = "d4f6a8c2e1b7"
down_revision = "c9d4e7f1a2b3"
branch_labels = None
depends_on = None
def _has_column(table_name: str, column_name: str) -> bool:
"""检查数据表是否已存在指定字段。"""
inspector = sa.inspect(op.get_bind())
if table_name not in inspector.get_table_names():
return False
return any(
column["name"] == column_name
for column in inspector.get_columns(table_name)
)
def upgrade() -> None:
"""为整理历史补充音乐重试所需的实体字段。"""
if not _has_column("transferhistory", "music_type"):
op.add_column(
"transferhistory",
sa.Column("music_type", sa.String(), nullable=True),
)
if not _has_column("transferhistory", "total_tracks"):
op.add_column(
"transferhistory",
sa.Column("total_tracks", sa.Integer(), nullable=True),
)
def downgrade() -> None:
"""移除整理历史中的音乐实体字段。"""
if _has_column("transferhistory", "total_tracks"):
op.drop_column("transferhistory", "total_tracks")
if _has_column("transferhistory", "music_type"):
op.drop_column("transferhistory", "music_type")