商品列表展示价格

controller/mall.go

@@ -27,6 +27,23 @@ func MallGoodsList(c *gin.Context) {
 		RespJson(c, status.InternalServerError, nil)
 		return
 	}
+	var ids []uint32
+	for _, goods := range list {
+		ids = append(ids, goods.GoodsId)
+	}
+
+	if len(ids) > 0 {
+		cm := model.GetGoodsFirstSkuCombo(ids)
+		if cm != nil {
+			for j, combo := range cm {
+				for i, goods := range list {
+					if combo.GoodsId == goods.GoodsId {
+						list[i].Combo = &cm[j]
+					}
+				}
+			}
+		}
+	}
 
 	ret := map[string]interface{}{
 		"list":       list,

model/mall.go

@@ -81,6 +81,7 @@ type Goods struct {
 	GoodsCat      *GoodsCat            `json:"goods_cat" gorm:"-"`
 	GoodsDiscount *GoodsDiscount       `json:"goods_discount" gorm:"-"`
 	Attributes    []GoodsAttribute     `json:"attributes" gorm:"-"`
+	Combo         *GoodsAttributeCombo `json:"combo" gorm:"-"`
 }
 
 // gen:qs
@@ -1106,18 +1107,26 @@ func ParaToSubstance(c *gin.Context, sign string) (string, error) {
 	return signStr, nil
 }
 
-//paramMap := make(map[string]string, 0)
+func GetGoodsFirstSkuCombo(goodsId []uint32) []GoodsAttributeCombo {
+	var list []GoodsAttributeCombo
+	//查询每个商品按sort字端排序的最大的一个sku的价格
+	err := DB.
+		Raw(`
+SELECT b.*
+FROM (SELECT id
+      FROM goods_attribute d
+               INNER JOIN (SELECT goods_id, MAX(sort) AS max_sort FROM goods_attribute GROUP BY goods_id) c
+                          ON c.goods_id = d.goods_id AND c.max_sort = d.sort) AS a
+         INNER JOIN goods_attribute_combo b ON a.id = b.goods_attribute_id
+WHERE b.goods_id IN (?)
+GROUP BY b.goods_id
+		`, goodsId).
+		Scan(&list).
+		Error
+	if err != nil {
+		logger.Error("get goods first sku failed", err)
+		return nil
+	}
 
-//appId := c.Param("app_id")
-//bankTrxNo := c.Param("bank_trx_no")
-//bankWayCode := c.Param("bank_way_code")
-//buyerId := c.Param("buyer_id")
-//billDetail := c.Param("buyer_trade_fund_bill_detail")
-//notifyType := c.Param("notify_type")
-//payModeCode := c.Param("pay_mode_code")
-//paySuccessTime := c.Param("pay_success_time")
-//payWayCode := c.Param("pay_way_code")
-//platTrxNo := c.Param("plat_trx_no")
-//settleAmount := c.Param("settle_amount")
-//settleAppId := c.Param("settle_app_id")
-//signType := c.Param("sign_type")
+	return list
+}