good is not enought

@@ -273,6 +273,7 @@ const modifyProductNum = (options) => {
     const uid = options.uid;
     const shoppingKey = options.shoppingKey;
     const sku = options.sku;
+    const goodType = options.goodType;
 
     let params = {
         product_sku: options.sku
@@ -304,14 +305,22 @@ const modifyProductNum = (options) => {
         });
     }
 
-    if (sku) {
-        _.merge(params, {
-            product_sku: sku
-        });
-    }
+    _.merge(params, {
+        product_sku: sku
+    });
+
+    return getCartData(shoppingKey, uid).then(function(result) {
+        console.log('getCartData--pre-callback-result:', result);
+        console.log('modifyProductNum---params:', params);
+        if(goodType === 'advance') {
+            // 检查库存量
+        } else if(goodType === 'ordinary') {
+            // 检查库存量
+        }
+        return api.get('', params);
+    });
+
 
-    console.log('modifyProductNum---params:', params);
-    return api.get('', params);
 };
 
 module.exports = {

@@ -15,7 +15,6 @@ const order = require(`${cRoot}/order`); // 下单
 
 // 购物车
 router.get('/cart', cartCtrl.index);
-router.get('/cart/product/check_inventory', cartCtrl.checkInventory);
 router.post('/cart/product/change_num', cartCtrl.changeProductNum);
 router.delete('/cart/product/remove', cartCtrl.removeProduct);
 router.post('/cart/product/send_to_favorite', cartCtrl.sendToFavorite);

@@ -7,8 +7,7 @@
         {{^}}
             {{> cart/empty-cart}}
         {{/if}}
-{{!--         <button id="add_to_cart1">添加到购物车 980874 number 1</button>
-        <button id="add_to_cart2">添加到购物车 980870 number 2</button> --}}
+        {{!-- <button id="add_to_cart1">添加到购物车 1413600 number 1</button> --}}
     </div>
 </div>
 <script id="edit-color-size-tpl" type="text/html">

-<div class="stepper" data-productId={{productId}}>
+<div class="stepper" data-productType={{goods_type}}>
     <div class="minus action">
         <span class="iconfont">&#xe621;</span>
     </div>

@@ -86,7 +86,7 @@ $(function() {
     // TODO=>
     // $('#add_to_cart1').on('click', function() {
     //     Cart.addToCart({
-    //         productSku: '870896',
+    //         productSku: '1413600',
     //         buyNumber: 1
     //     });
     // });

@@ -10,7 +10,7 @@ var $ = require('yoho-jquery');
 
 var Stepper = {
     // 减少商品数量
-    decrease: function(sku, currNum) {
+    decrease: function(goodType, sku, currNum) {
         if (parseInt(currNum, 10) <= 1) {
             // return callback(1);
         } else {
@@ -19,7 +19,8 @@ var Stepper = {
                 type: 'POST',
                 data: {
                     changeType: 'DECREASE',
-                    sku: sku
+                    sku: sku,
+                    goodType: goodType
 
                     // changeTo: parseInt(currNum, 10) - 1
                 },
@@ -34,13 +35,14 @@ var Stepper = {
     },
 
     // 增加商品数量
-    increase: function(sku) {
+    increase: function(goodType, sku) {
         Util.ajax({
             url: '/shopping/cart/product/change_num',
             type: 'POST',
             data: {
                 changeType: 'INCREASE',
-                sku: sku
+                sku: sku,
+                goodType: goodType
 
                 // changeTo: parseInt(currNum, 10) + 1
             },
@@ -60,7 +62,8 @@ var Stepper = {
     init: function() {
         var _this = this,
             $target,
-            sku;
+            sku,
+            goodType;
 
         var steppers = $('.stepper'),
             $input,
@@ -85,7 +88,8 @@ var Stepper = {
 
             if (!$target.hasClass('disable')) {
                 sku = $.parseJSON($target.parents('ul').children().first().attr('data-product_info')).product_sku;
-                _this.decrease(sku, currNum, function(num, changed) {
+                goodType = $target.parent().attr('data-producttype');
+                _this.decrease(goodType, sku, currNum, function(num, changed) {
                     if (num === 1) {
                         $input.val(1);
                         $target.addClass('disable');
@@ -111,7 +115,8 @@ var Stepper = {
 
             if (!$target.hasClass('disable')) {
                 sku = $.parseJSON($target.parents('ul').children().first().attr('data-product_info')).product_sku;
-                _this.increase(sku, currNum, function(num, changed, overflow) {
+                goodType = $target.parent().attr('data-producttype');
+                _this.increase(goodType, sku, currNum, function(num, changed, overflow) {
                     if (overflow) {
                         $target.addClass('disable');
                     }