update 评级次数统计（折线图）接口

Modules/DashBoard/DashBoardImpl.py

@@ -104,14 +104,21 @@ class DashBoardImpl(object):
                 {"$sort": {"_id": 1}}
             ]
         )
+        records = [{'_id': item['_id'][:10], 'count': item['count']} for item in records]
+        records_dict = dict()
+        for record in records:
+            if record['_id'] in records_dict:
+                records_dict[record['_id']] += record['count']
+            else:
+                records_dict[record['_id']] = record['count']
 
         # 聚类统计用的_id字段更名为date
         result = dict()
         result['日期'] = list()
         result['次数'] = list()
-        for data in records:
-            result['日期'].append(data['_id'])
-            result['次数'].append(data['count'])
+        for key, value in records_dict.items():
+            result['日期'].append(key)
+            result['次数'].append(value)
 
         return result