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* Generic events * Update migration to rename table/columns in place * Use AbstractConcreteBase * Address feedback from review * Remove commented out line * Linting
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
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| from sqlalchemy import Column, DateTime, ForeignKey, String, orm, sql | ||
| from sqlalchemy.dialects.postgresql import JSONB, UUID | ||
| from sqlalchemy.ext.declarative import AbstractConcreteBase, declared_attr | ||
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| from warehouse import db | ||
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| class Event(AbstractConcreteBase): | ||
| tag = Column(String, nullable=False) | ||
| time = Column(DateTime, nullable=False, server_default=sql.func.now()) | ||
| ip_address = Column(String, nullable=False) | ||
| additional = Column(JSONB, nullable=True) | ||
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| @declared_attr | ||
| def __tablename__(cls): # noqa: N805 | ||
| return "_".join([cls.__name__.removesuffix("Event").lower(), "events"]) | ||
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| @declared_attr | ||
| def __mapper_args__(cls): # noqa: N805 | ||
| return ( | ||
| {"polymorphic_identity": cls.__name__, "concrete": True} | ||
| if cls.__name__ != "Event" | ||
| else {} | ||
| ) | ||
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| @declared_attr | ||
| def source_id(cls): # noqa: N805 | ||
| return Column( | ||
| UUID(as_uuid=True), | ||
| ForeignKey( | ||
| "%s.id" % cls._parent_class.__tablename__, | ||
| deferrable=True, | ||
| initially="DEFERRED", | ||
| ), | ||
| nullable=False, | ||
| ) | ||
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| @declared_attr | ||
| def source(cls): # noqa: N805 | ||
| return orm.relationship(cls._parent_class) | ||
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| def __init_subclass__(cls, /, parent_class, **kwargs): | ||
| cls._parent_class = parent_class | ||
| return cls | ||
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| class HasEvents: | ||
| def __init_subclass__(cls, /, **kwargs): | ||
| super().__init_subclass__(**kwargs) | ||
| cls.Event = type( | ||
| f"{cls.__name__}Event", (Event, db.Model), dict(), parent_class=cls | ||
| ) | ||
| return cls | ||
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| @declared_attr | ||
| def events(cls): # noqa: N805 | ||
| return orm.relationship(cls.Event, cascade="all, delete-orphan", lazy=True) | ||
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| def record_event(self, *, tag, ip_address, additional=None): | ||
| session = orm.object_session(self) | ||
| event = self.Event( | ||
| source=self, tag=tag, ip_address=ip_address, additional=additional | ||
| ) | ||
| session.add(event) | ||
| session.flush() | ||
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| return event |
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