修复爆款开头复刻/拆镜复刻软删步骤时未处理生成资源|素材云记录追加资源数据ID

video-gen-api/app/services/module_generation_flow_base_service.py

@@ -195,6 +195,35 @@ async def create_module_step(
     return step
 
 
+def _clear_project_final_resources_by_deleted_steps(
+    project: ModuleGenerationProject,
+    *,
+    deleted_step_codes: set[str],
+    config: ModuleGenerationFlowConfig,
+) -> list[str]:
+    """根据被软删的步骤，清空项目表中对应的最终资源字段。
+
+    第 3 步图片生成被软删时，下游第 5 步视频也基于旧图片失效，所以图片、视频、封面都要清空。
+    第 5 步视频生成被软删时，只清空视频和封面，保留第 3 步图片结果。
+    """
+    cleared_fields: list[str] = []
+
+    def clear_field(field_name: str) -> None:
+        if getattr(project, field_name, None):
+            cleared_fields.append(field_name)
+        setattr(project, field_name, None)
+
+    if config.image_generate_step_code in deleted_step_codes:
+        clear_field("final_image_url")
+        clear_field("final_video_url")
+        clear_field("final_video_cover_url")
+    elif config.video_generate_step_code in deleted_step_codes:
+        clear_field("final_video_url")
+        clear_field("final_video_cover_url")
+
+    return cleared_fields
+
+
 async def soft_delete_steps_from_index(
     db: AsyncSession,
     *,
@@ -217,6 +246,13 @@ async def soft_delete_steps_from_index(
         .with_for_update()
     )
     steps = list(result.scalars().all())
+    deleted_step_codes = {step.step_code for step in steps}
+    cleared_project_fields = _clear_project_final_resources_by_deleted_steps(
+        project,
+        deleted_step_codes=deleted_step_codes,
+        config=config,
+    )
+
     for step in steps:
         step.is_current = False
         step.deleted_at = deleted_at
@@ -245,7 +281,11 @@ async def soft_delete_steps_from_index(
             project=project,
             event_type=ModuleEventTypeEnum.SOFT_DELETE_STEPS.value,
             message=f"软删除第 {start_index} 步及之后的旧子任务",
-            detail={"step_ids": [step.id for step in steps]},
+            detail={
+                "step_ids": [step.id for step in steps],
+                "step_codes": [step.step_code for step in steps],
+                "cleared_project_fields": cleared_project_fields,
+            },
         )
     return steps