update

app/service/util/trade.js

@@ -8,19 +8,37 @@ const assert = require('assert');
 class TradeService extends CrudService {
   constructor(ctx) {
     super(ctx, 'trade');
+    this.shopModel = this.ctx.model.Shop.Shop;
     this.goodsModel = this.ctx.model.Shop.Goods;
     this.goodsSpecModel = this.ctx.model.Shop.GoodsSpec;
   }
   /**
    * 检测是否可以购买该物品
    * @param {Object} param 查询条件
+   * @param param.shop_id 商店id
    * @param param.goods_id 商品id
    * @param param.goodsSpec_id 商品规格id
    * @param param.num 购买数量
    */
-  async checkCanBuy({ goods_id, goodsSpec_id, num }) {
+  async checkCanBuy({ shop_id, goods_id, goodsSpec_id, num }) {
+    assert(shop_id, '缺少店铺信息');
+    assert(goods_id, '缺少商品信息');
+    assert(goodsSpec_id, '缺少商品规格信息');
+    assert(num, '缺少购买数量');
     const result = { result: true };
-    // 1.检查商品是否可以购买
+    // 1.检查商店是否正常运行
+    const shop = await this.shopModel.findById(shop_id);
+    if (!shop) {
+      result.msg = '未找到店铺';
+      result.result = false;
+      return result;
+    }
+    if (shop.status !== '1') {
+      result.msg = '店铺不处于营业状态';
+      result.result = false;
+      return result;
+    }
+    // 2.检查商品是否可以购买
     const goods = await this.goodsModel.findById(goods_id);
     if (!goods) {
       result.msg = '未找到商品';
@@ -32,7 +50,7 @@ class TradeService extends CrudService {
       result.result = false;
       return result;
     }
-    // 2.检验该规格是否可以购买
+    // 3.检验该规格是否可以购买
     const goodsSpec = await this.goodsSpecModel.findById(goodsSpec_id);
     if (!goodsSpec) {
       result.msg = '未找到商品的指定规格';