购物车页当购买数量超出限购数量时出现toast提示，并修改商品数量为当前可购买数量

后端研发-苏泰源
1 parent ceabe523
Showing 2 changed files with 15 additions and 7 deletions
pages/cart/cart/cart.js
pages/cart/cart/cart.wxss
@@ -1013,7 +1013,7 @@ Page({
         console.log('add+');
         if (a.goods_num < a.store_count) {
             var e = {
-                goods_num: a.goods_num + 1,
+								goods_num: a.goods_num + 1,
                 id: a.id,
                 goods_id: a.goods_id,
                 store_id: oo.stoid
@@ -1744,16 +1744,24 @@ Page({
                 })
-
-                var buyed_mum2 = t.goods_num + goodsbuynum;
-                if (buyed_mum2 > limit && limit > 0) {
+								//--> by ty
+                // var buyed_mum2 = t.goods_num + goodsbuynum;
+								var buyed_mum2 = t.goods_num;
+								//<--
+								
+								// 判断当前预购买的数量是否超过可购买的数量
+                if (buyed_mum2 > (limit - goodsbuynum) && limit > 0) {
                     wx.showToast({
                         title: '购买数量超出商品限购',
 												icon: 'none',
-                        // content: '购买数量超出商品限购'
                     });
                     var txt = "requestData[" + pitem + "].goods[" + item + "].goods_num";
-                    var cbuy = limit - buyed_mum2;
+										
+										//--> by ty
+										var cbuy = limit - goodsbuynum;
+                    // var cbuy = limit - buyed_mum2 + 1;
+										//<-- 
+										
                     e.setData({
                         // [txt]: cbuy > 0 ? cbuy : 0,
 												[txt]: cbuy > 0 ? cbuy : limit,
@@ -131,7 +131,7 @@ radio {
 .sub, .add, .count>input {
     /* border-right: 1px solid #000; */
-	background-color: #f8f8f8;
+	background-color: #f0f0f0;
 	border-radius: 8rpx;
 }
 .sub.active {