Support reporting on task data (#47)

spiffworkflow-backend/src/spiffworkflow_backend/routes/process_api_blueprint.py

@@ -811,18 +811,12 @@ def process_instance_list(
         ProcessInstanceModel.start_in_seconds.desc(), ProcessInstanceModel.id.desc()  # type: ignore
     ).paginate(page=page, per_page=per_page, error_out=False)
 
-    # TODO need to look into test failures when the results from result_dict is
-    # used instead of the process instances
-
-    # substitution_variables = request.args.to_dict()
-    # result_dict = process_instance_report.generate_report(
-    #    process_instances.items, substitution_variables
-    # )
-
-    # results = result_dict["results"]
-    # report_metadata = result_dict["report_metadata"]
-
-    results = process_instances.items
+    results = list(
+        map(
+            ProcessInstanceService.serialize_flat_with_task_data,
+            process_instances.items,
+        )
+    )
     report_metadata = process_instance_report.report_metadata
 
     response_json = {

spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_service.py

@@ -315,3 +315,22 @@ class ProcessInstanceService:
         )
 
         return task
+
+    @staticmethod
+    def serialize_flat_with_task_data(
+        process_instance: ProcessInstanceModel,
+    ) -> dict[str, Any]:
+        """serialize_flat_with_task_data."""
+        results = {}
+        try:
+            original_status = process_instance.status
+            processor = ProcessInstanceProcessor(process_instance)
+            process_instance.data = processor.get_current_data()
+            results = process_instance.serialized_flat
+            # this process seems to mutate the status of the process_instance which
+            # can result in different results than expected from process_instance_list,
+            # so set the status back to the expected value
+            results["status"] = original_status
+        except ApiError:
+            results = process_instance.serialized
+        return results