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archived-MoviePilot/database/versions/9caa49cb3e10_2_2_6.py

60 lines
2.1 KiB
Python

"""2.2.6
为订阅洗版增加按集优先级状态
Revision ID: 9caa49cb3e10
Revises: b8f6e3a1c2d4
Create Date: 2026-05-12
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = "9caa49cb3e10"
down_revision = "b8f6e3a1c2d4"
branch_labels = None
depends_on = None
def _has_column(inspector: sa.Inspector, table_name: str, column_name: str) -> bool:
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 _ensure_json_column(bind, table_name: str, column_name: str) -> None:
"""Add the column as JSON, or fix it if it already exists with the wrong type (PostgreSQL only)."""
inspector = sa.inspect(bind)
if not _has_column(inspector, table_name, column_name):
op.add_column(table_name, sa.Column(column_name, sa.JSON(), nullable=True))
return
if bind.dialect.name != "postgresql":
return
for col in inspector.get_columns(table_name):
if col["name"] != column_name:
continue
type_name = type(col["type"]).__name__.upper()
if type_name in ("JSON", "JSONB"):
return
# Column exists with wrong type (e.g., INTEGER from an intermediate build); replace it.
# Existing values are non-functional garbage so data loss is acceptable.
op.drop_column(table_name, column_name)
op.add_column(table_name, sa.Column(column_name, sa.JSON(), nullable=True))
return
def upgrade() -> None:
bind = op.get_bind()
_ensure_json_column(bind, "subscribe", "episode_priority")
_ensure_json_column(bind, "subscribehistory", "episode_priority")
def downgrade() -> None:
inspector = sa.inspect(op.get_bind())
if _has_column(inspector, "subscribehistory", "episode_priority"):
op.drop_column("subscribehistory", "episode_priority")
inspector = sa.inspect(op.get_bind())
if _has_column(inspector, "subscribe", "episode_priority"):
op.drop_column("subscribe", "episode_priority")