判断是否有值

search/views/search_hotword.py

@@ -51,6 +51,7 @@ def search_hotword(device_id=-1):
             if len(all_tag_name_list) == 6 or num == results_tag:
                 break
 
+        logging.info("get all_tag_name_list:%s" % all_tag_name_list)
         # 获取个性化标签
         linucb_recommend_redis_prefix = "physical:linucb:tag_recommend:device_id:"
         tag_recommend_redis_key = linucb_recommend_redis_prefix + str(device_id)
@@ -59,7 +60,9 @@ def search_hotword(device_id=-1):
         for item in linucb_recommend_tag_list:
             results_tag_recommend = list(
                 set(Tag.objects.filter(id=item, is_online=True).values_list("name", flat=True)))
-            all_tag_name_list.add(results_tag_recommend[0])
+            if results_tag_recommend:
+                all_tag_name_list.add(results_tag_recommend[0])
+            logging.info("get all_tag_name_list:%s" % all_tag_name_list)
             if len(all_tag_name_list) == 12:
                 return {"recommend_tag_name": list(all_tag_name_list)}
 
@@ -73,6 +76,8 @@ def search_hotword(device_id=-1):
                 if results_tag_hexin:
                     if results_tag_hexin[0] not in all_tag_name_list:
                         all_tag_name_list.add(results_tag_hexin[0])
+                        logging.info("get all_tag_name_list:%s" % all_tag_name_list)
+
                         if len(all_tag_name_list) >= 12:
                             return {"recommend_tag_name": list(all_tag_name_list)}