fix generate bug (#2614)

### What problem does this PR solve?



### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

agent/component/generate.py

@@ -122,13 +122,13 @@ class Generate(ComponentBase):
         if "empty_response" in retrieval_res.columns and not "".join(retrieval_res["content"]):
             res = {"content": "\n- ".join(retrieval_res["empty_response"]) if "\n- ".join(
                 retrieval_res["empty_response"]) else "Nothing found in knowledgebase!", "reference": []}
-            return Generate.be_output(res)
+            return pd.DataFrame([res])
 
         ans = chat_mdl.chat(prompt, self._canvas.get_history(self._param.message_history_window_size),
                             self._param.gen_conf())
         if self._param.cite and "content_ltks" in retrieval_res.columns and "vector" in retrieval_res.columns:
-            df = self.set_cite(retrieval_res, ans)
-            return pd.DataFrame(df)
+            res = self.set_cite(retrieval_res, ans)
+            return pd.DataFrame([res])
 
         return Generate.be_output(ans)
 

agent/component/switch.py

@@ -49,34 +49,15 @@ class Switch(ComponentBase, ABC):
 
     def _run(self, history, **kwargs):
         for cond in self._param.conditions:
-
-            if len(cond["items"]) == 1:
-                out = self._canvas.get_component(cond["items"][0]["cpn_id"])["obj"].output()[1]
-                cpn_input = "" if "content" not in out.columns else " ".join(out["content"])
-                if self.process_operator(cpn_input, cond["items"][0]["operator"], cond["items"][0]["value"]):
-                    return Switch.be_output(cond["to"])
-                continue
-
-            if cond["logical_operator"] == "and":
-                res = True
-                for item in cond["items"]:
-                    out = self._canvas.get_component(item["cpn_id"])["obj"].output()[1]
-                    cpn_input = "" if "content" not in out.columns else " ".join(out["content"])
-                    if not self.process_operator(cpn_input, item["operator"], item["value"]):
-                        res = False
-                        break
-                if res:
-                    return Switch.be_output(cond["to"])
-                continue
-
-            res = False
+            res = []
             for item in cond["items"]:
                 out = self._canvas.get_component(item["cpn_id"])["obj"].output()[1]
                 cpn_input = "" if "content" not in out.columns else " ".join(out["content"])
-                if self.process_operator(cpn_input, item["operator"], item["value"]):
-                    res = True
-                    break
-            if res:
+                res.append(self.process_operator(cpn_input, item["operator"], item["value"]))
+                if cond["logical_operator"] != "and" and any(res):
+                    return Switch.be_output(cond["to"])
+
+            if all(res):
                 return Switch.be_output(cond["to"])
 
         return Switch.be_output(self._param.end_cpn_id)
@@ -122,4 +103,4 @@ class Switch(ComponentBase, ABC):
             except Exception as e:
                 return True if input <= value else False
 
-        raise ValueError('Not supported operator' + operator)
+        raise ValueError('Not supported operator' + operator)