团购：基础接口

shared/db/ActivityGroupShopUserRec.ts

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+import BaseModel from './BaseModel';
+import { index, getModelForClass, prop, DocumentType } from '@typegoose/typegoose';
+import { nowSeconds } from '../pubUtils/timeUtil';
+import { GroupShopDiscount } from '../domain/activityField/groupShopField';
+
+/**
+  * 活动系统 - 团购玩家记录
+*/
+@index({ activityId: 1 })
+@index({ activityId: 1, roleId: 1 })
+@index({ activityId: 1, roleId: 1, id: 1, discountId: 1 })
+
+export class GroupShopBuyRecord {
+
+  @prop({ required: true })
+  time: number;             // 购买时间
+
+  @prop({ required: true })
+  sum: number;             // 达成时的总额
+
+  @prop({ required: true })
+  discountId: number;          // 达成时的折扣
+
+  @prop({ required: true })
+  discount: number;             // 达成时的折扣
+
+  @prop({ required: true })
+  price: number;             // 达成时的价格
+
+  @prop({ required: true })
+  buyCnt: number;			           // 购买次数
+
+  @prop({ required: true })
+  refundPrice: number;	        // 退费价格
+
+  constructor(curDiscount: GroupShopDiscount, buyCnt: number) {
+    this.time = nowSeconds();
+    if(curDiscount) {
+      this.sum = curDiscount.sum;
+      this.discountId = curDiscount.id;
+      this.discount = curDiscount.discount;
+      this.price = curDiscount.price;
+    }
+    this.buyCnt = buyCnt;
+    this.refundPrice = 0;
+  }
+}
+
+export default class Activity_Group_Shop_User_Rec extends BaseModel {
+
+  @prop({ required: true })
+  activityId: number;				    // 活动Id
+
+  @prop({ required: true })
+  roleId: string;				        // 玩家Id
+
+  @prop({ required: true })
+  id: number;			            // 唯一id
+
+  @prop({ required: true })
+  gid: number;			            // 物品id
+
+  @prop({ required: true })
+  buyCnt: number;			           // 购买次数
+
+  @prop({ required: true, type: GroupShopBuyRecord, _id: false })
+  records: GroupShopBuyRecord[];			           // 购买次数
+
+  public static async findByActivityAndRoleId(activityId: number, roleId: string) {
+    let result: ActivityGroupShopUserRecType[] = await ActivityGroupShopUserRecModel.find({ roleId, activityId }).lean();
+    return result;
+  }
+
+  public static async incBuyCnt(activityId: number, roleId: string, id: number, gid: number, inc: number, record: GroupShopBuyRecord) {
+    let result: ActivityGroupShopUserRecType = await ActivityGroupShopUserRecModel.findOneAndUpdate(
+      { roleId, activityId, id }, { $inc: { buyCnt: inc }, $setOnInsert: { gid }, $push: { records: record } }, { new: true, upsert: true }
+      ).lean();
+    return result;
+  }
+
+}
+
+export const ActivityGroupShopUserRecModel = getModelForClass(Activity_Group_Shop_User_Rec);
+
+export interface ActivityGroupShopUserRecType extends Pick<DocumentType<Activity_Group_Shop_User_Rec>, keyof Activity_Group_Shop_User_Rec> { }
+export type ActivityGroupShopUserRecTypeParam = Partial<ActivityGroupShopUserRecType>; // 将所有字段变成可选项