perf: In the execution details of Image Understanding, correctly display the system prompt after variable replacement

Author: wangliang181230

apps/application/flow/step_node/image_understand_step_node/impl/base_image_understand_node.py

@@ -164,6 +164,9 @@ def execute(self, model_id, system, prompt, dialogue_number, dialogue_type, hist
         self.context['history_message'] = history_message
         question = self.generate_prompt_question(prompt)
         self.context['question'] = question.content
+        # 生成系统提示（变量替换）
+        system = self.workflow_manage.generate_prompt(system)
+        self.context['system'] = system
         # 生成消息列表, 真实的history_message
         message_list = self.generate_message_list(image_model, system, prompt,
                                                   self.get_history_message(history_chat_record, dialogue_number), image)
@@ -296,7 +299,7 @@ def generate_message_list(self, image_model, system: str, prompt: str, history_m
 
         if system is not None and len(system) > 0:
             return [
-                SystemMessage(self.workflow_manage.generate_prompt(system)),
+                SystemMessage(system),
                 *history_message,
                 *messages
             ]
@@ -320,7 +323,7 @@ def get_details(self, index: int, **kwargs):
             'name': self.node.properties.get('stepName'),
             "index": index,
             'run_time': self.context.get('run_time'),
-            'system': self.node_params.get('system'),
+            'system': self.context.get('system'),
             'history_message': [{'content': message.content, 'role': message.type} for message in
                                 (self.context.get('history_message') if self.context.get(
                                     'history_message') is not None else [])],