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MoviePilot/database/versions/c9d4e7f1a2b3_2_2_16.py

57 lines
1.6 KiB
Python

"""2.2.16
为音乐订阅保存实体类型和专辑总曲目数
Revision ID: c9d4e7f1a2b3
Revises: a8c4e2f6b1d9
Create Date: 2026-08-09
"""
from alembic import op
import sqlalchemy as sa
revision = "c9d4e7f1a2b3"
down_revision = "a8c4e2f6b1d9"
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 _add_music_columns(table_name: str) -> None:
"""为订阅或订阅历史表幂等补充音乐专辑字段。"""
if not _has_column(table_name, "music_type"):
op.add_column(
table_name,
sa.Column("music_type", sa.String(), nullable=True),
)
if not _has_column(table_name, "total_tracks"):
op.add_column(
table_name,
sa.Column("total_tracks", sa.Integer(), nullable=True),
)
def upgrade() -> None:
"""为当前订阅及完成历史补充音乐专辑字段。"""
_add_music_columns("subscribe")
_add_music_columns("subscribehistory")
def downgrade() -> None:
"""移除音乐订阅专辑字段。"""
for table_name in ("subscribehistory", "subscribe"):
if _has_column(table_name, "total_tracks"):
op.drop_column(table_name, "total_tracks")
if _has_column(table_name, "music_type"):
op.drop_column(table_name, "music_type")