🐞 fix(团购): 修复团购定时器多出记录的问题

shared/db/ActivityGroupShopRec.ts

@@ -34,7 +34,7 @@ export class GroupShopRecord {
 /**
   * 活动系统 - 团购总记录
 */
-@index({ activityId: 1 })
+@index({ activityId: 1, itemId: 1 })
 
 export default class Activity_Group_Shop_Rec extends BaseModel {
 
@@ -74,8 +74,9 @@ export default class Activity_Group_Shop_Rec extends BaseModel {
   }
 
   public static async setSum(activityId: number, itemId: number, sum: number) {
+    await ActivityGroupShopRecModel.findOneAndUpdate({ activityId, itemId }, { $setOnInsert: { sum: 0 } }, { new: true, upsert: true }).lean();
     let result: ActivityGroupShopRecType = await ActivityGroupShopRecModel.findOneAndUpdate(
-      { activityId, itemId, sum: { $lt: sum } }, { $set: { sum } }, { new: true, upsert: true }
+      { activityId, itemId, sum: { $lt: sum } }, { $set: { sum } }, { new: true }
     ).lean();
     return result;
   }