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209f16af76
* style: remove necessary imports * style: fix F841 * style: fix F401 * style: fix F811 * style: fix E402 * style: fix E721 * style: fix E722 * style: fix E722 * style: fix F541 * style: ruff format * style: all passed * style: add ruff in deps * style: more ignores in ruff.toml * style: add pre-commit
41 lines
747 B
Python
41 lines
747 B
Python
from __future__ import annotations
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import typing
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import abc
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from ..core import app
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preregistered_db_migrations: list[typing.Type[DBMigration]] = []
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def migration_class(number: int):
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"""迁移类装饰器"""
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def wrapper(cls: typing.Type[DBMigration]) -> typing.Type[DBMigration]:
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cls.number = number
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preregistered_db_migrations.append(cls)
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return cls
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return wrapper
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class DBMigration(abc.ABC):
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"""数据库迁移"""
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number: int
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"""迁移号"""
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def __init__(self, ap: app.Application):
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self.ap = ap
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@abc.abstractmethod
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async def upgrade(self):
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"""升级"""
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pass
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@abc.abstractmethod
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async def downgrade(self):
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"""降级"""
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pass
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