refactor: move workflow execution writes to uow

app/startup/workflow.py

@@ -0,0 +1,71 @@
+"""工作流执行状态事务适配器。"""
+
+from collections.abc import Callable
+from typing import Any, TypeVar
+
+from sqlalchemy.orm import Session
+
+from app.application.workflow import WorkflowExecutionCommand
+from app.db.oper.workflow import WorkflowOper
+from app.db.uow import SqlAlchemyUnitOfWork
+
+
+_Result = TypeVar("_Result")
+
+
+class TransactionalWorkflowExecutionService:
+    """为每次工作流执行状态写入创建独立短会话和 UnitOfWork。"""
+
+    def __init__(self, session_factory: Callable[[], Session]) -> None:
+        """保存由启动组合根提供的同步 Session 工厂。"""
+        self._session_factory = session_factory
+
+    def start(self, workflow_id: int) -> bool:
+        """以独立事务提交运行中状态。"""
+        return self._run(lambda command: command.start(workflow_id))
+
+    def success(self, workflow_id: int, result: str | None = None) -> bool:
+        """以独立事务提交成功状态。"""
+        return self._run(lambda command: command.success(workflow_id, result))
+
+    def fail(self, workflow_id: int, result: str) -> bool:
+        """以独立事务提交失败状态。"""
+        return self._run(lambda command: command.fail(workflow_id, result))
+
+    def step(
+            self,
+            workflow_id: int,
+            action_id: str,
+            context: dict[str, Any],
+            execution_state: dict[str, Any] | None = None,
+    ) -> bool:
+        """以独立事务提交动作进度。"""
+        return self._run(
+            lambda command: command.step(
+                workflow_id,
+                action_id,
+                context,
+                execution_state,
+            )
+        )
+
+    def reset(self, workflow_id: int, reset_count: bool = False) -> bool:
+        """以独立事务提交执行状态重置。"""
+        return self._run(
+            lambda command: command.reset(workflow_id, reset_count)
+        )
+
+    def _run(
+            self,
+            operation: Callable[[WorkflowExecutionCommand], _Result],
+    ) -> _Result:
+        """创建短会话并把提交/回滚交给 Application command。"""
+        session = self._session_factory()
+        try:
+            command = WorkflowExecutionCommand(
+                repository=WorkflowOper(db=session),
+                unit_of_work=SqlAlchemyUnitOfWork(session),
+            )
+            return operation(command)
+        finally:
+            session.close()