Lee-W commented on code in PR #44711:
URL: https://github.com/apache/airflow/pull/44711#discussion_r1872509260
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task_sdk/src/airflow/sdk/definitions/asset/decorators.py:
##########
@@ -81,41 +97,53 @@ class AssetDefinition(Asset):
_source: asset
def __attrs_post_init__(self) -> None:
- from airflow.models.dag import DAG
-
- with DAG(
- dag_id=self.name,
- schedule=self._source.schedule,
- is_paused_upon_creation=self._source.is_paused_upon_creation,
- dag_display_name=self._source.display_name or self.name,
- description=self._source.description,
- params=self._source.params,
- on_success_callback=self._source.on_success_callback,
- on_failure_callback=self._source.on_failure_callback,
- auto_register=True,
- ):
- _AssetMainOperator(
- task_id="__main__",
- inlets=[
- AssetRef(name=inlet_asset_name)
- for inlet_asset_name in
inspect.signature(self._function).parameters
- if inlet_asset_name not in ("self", "context")
- ],
- outlets=[self],
- python_callable=self._function,
- definition_name=self.name,
- uri=self.uri,
- )
+ with self._source.create_dag(dag_id=self.name):
+ _AssetMainOperator.from_definition(self)
@attrs.define(kw_only=True)
-class asset:
- """Create an asset by decorating a materialization function."""
+class MultiAssetDefinition(BaseAsset):
+ """
+ Representation from decorating a function with ``@asset.multi``.
+
+ This is implemented as an "asset-like" object that can be used in all
places
+ that accept asset-ish things (e.g. normal assets, aliases, AssetAll,
+ AssetAny).
+
+ :meta private:
+ """
+
+ _function: Callable
+ _source: asset.multi
+
+ def __attrs_post_init__(self) -> None:
+ with self._source.create_dag(dag_id=self._function.__name__):
+ _AssetMainOperator.from_definition(self)
+
+ def evaluate(self, statuses: dict[str, bool]) -> bool:
+ return all(o.evaluate(statuses=statuses) for o in self._source.outlets)
+
+ def iter_assets(self) -> Iterator[tuple[AssetUniqueKey, Asset]]:
+ for o in self._source.outlets:
+ yield from o.iter_assets()
+
+ def iter_asset_aliases(self) -> Iterator[tuple[str, AssetAlias]]:
+ for o in self._source.outlets:
+ yield from o.iter_asset_aliases()
+
+ def iter_dag_dependencies(self, *, source: str, target: str) ->
Iterator[DagDependency]:
+ for obj in self._source.outlets:
+ yield from obj.iter_dag_dependencies(source=source, target=target)
- uri: str | ObjectStoragePath | None = None
- group: str = Asset.asset_type
- extra: dict[str, Any] = attrs.field(factory=dict)
- watchers: list[BaseTrigger] = attrs.field(factory=list)
+
[email protected](kw_only=True)
+class _DAGArguments:
Review Comment:
Not sure whether `_DAGLike` makes more sense. This sound like arguments but
it seems to be a DAG to be?
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