feat: query all process nodes for business_object

api_v1/views/stateflow/business_object.py

@@ -285,6 +285,29 @@ class BusinessObjectViewSet(viewsets.ModelViewSet):
             'count': len(parameters)
         })
     
+    @action(detail=True, methods=['get'], url_path='process-nodes')
+    def process_nodes(self, request, pk=None):
+        """
+        获取业务对象所属流程的所有状态节点
+        
+        返回流程中所有节点的列表，按顺序排列
+        """
+        business_object = self.get_object()
+        nodes = services.get_process_nodes(business_object)
+        
+        return Response({
+            'count': len(nodes),
+            'nodes': [
+                {
+                    'id': node['id'],
+                    'state_id': node['state_id'],
+                    'state_name': node['state_name'],
+                    'order': node['order']
+                }
+                for node in nodes
+            ]
+        })
+    
     @action(detail=True, methods=['post'], url_path='state-logs/(?P<log_id>[^/.]+)/add-parameters')
     def add_parameters_to_log(self, request, pk=None, log_id=None):
         """