increase and decrease product

@@ -66,29 +66,55 @@ exports.checkInventory = (req, res) => {
 // 修改数量
 exports.changeProductNum = (req, res) => {
     const changeType = req.body.changeType;
-    const changeTo = req.body.changeTo;
+
+    // const changeTo = req.body.changeTo;
+    const uid = req.user.uid;
+    const shoppingKey = req.cookies._SPK;
+    const sku = req.body.sku;
 
     if (changeType === 'INCREASE') {
-        // TODO
-        if (changeTo === '4') {
-            res.json({
-                code: '1000',
-                num: parseInt(changeTo, 10) - 1,
-                changed: false
-            });
-        } else {
-            res.json({
-                code: '0',
-                num: changeTo,
-                changed: true
-            });
-        }
+        cartModel.modifyProductNum({
+            increaseNum: 1, // 默认是1
+            uid,
+            shoppingKey,
+            sku
+        }).then(result => {
+            console.log('changeProductNum-INCREASE-result:', result);
+            if (result.code === 200) {
+                cartModel.getCartData(shoppingKey, uid).then(cartData => {
+                    res.json(_.merge(
+                        cartModel.filterCartData(cartData, uid),
+                        {code: cartData.code, message: result.message})
+                    );
+                });
+            } else {
+                res.json(result);
+            }
+        });
+
+        // res.json({
+        //     code: '1000',
+        //     num: parseInt(changeTo, 10) - 1,
+        //     changed: false
+        // });
     } else if (changeType === 'DECREASE') {
-        // TODO
-        res.json({
-            code: '0',
-            num: changeTo,
-            changed: true
+        cartModel.modifyProductNum({
+            decreaseNum: 1, // 默认是1
+            uid,
+            shoppingKey,
+            sku
+        }).then(result => {
+            console.log('changeProductNum-DECREASE-result:', result);
+            if (result.code === 200) {
+                cartModel.getCartData(shoppingKey, uid).then(cartData => {
+                    res.json(_.merge(
+                        cartModel.filterCartData(cartData, uid),
+                        {code: cartData.code, message: result.message})
+                    );
+                });
+            } else {
+                res.json(result);
+            }
         });
     }
 };

@@ -265,7 +265,7 @@ const filterCartData = (result, uid) => {
  * @param { Number } increaseNum 增加的数目
  * @param { Number } decreaseNum 减少的数目
  * @param { String } shoppingKey 未登录用户唯一识别码
- * @return { Array } 接口返回的数据
+ * @return { Array } 接口返回单个商品的增减数据
  */
 const modifyProductNum = (options) => {
     const increaseNum = options.increaseNum;
@@ -310,6 +310,7 @@ const modifyProductNum = (options) => {
         });
     }
 
+    console.log('modifyProductNum---params:', params);
     return api.get('', params);
 };
 

@@ -16,7 +16,7 @@ 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/:productId/change_num', cartCtrl.changeProductNum);
+router.post('/cart/product/change_num', cartCtrl.changeProductNum);
 router.delete('/cart/product/remove', cartCtrl.removeProduct);
 router.post('/cart/product/send_to_favorite', cartCtrl.sendToFavorite);
 router.get('/cart/product/:productId/edit', cartCtrl.editProduct);

@@ -6,24 +6,27 @@
  */
 
 var Util = require('./util');
+var $ = require('yoho-jquery');
 
 var Stepper = {
     // 减少商品数量
-    decrease: function(productId, currNum, callback) {
+    decrease: function(sku, currNum) {
         if (parseInt(currNum, 10) <= 1) {
-            return callback(1);
+            //return callback(1);
         } else {
             Util.ajax({
-                url: '/shopping/cart/product/' + productId + '/change_num',
+                url: '/shopping/cart/product/change_num',
                 type: 'POST',
                 data: {
                     changeType: 'DECREASE',
-                    changeTo: parseInt(currNum, 10) - 1
+                    sku: sku
+
+                    // changeTo: parseInt(currNum, 10) - 1
                 },
                 success: function(res) {
-                    if (res.code === '0') {
-                        return callback(res.num, res.changed);
-                    }
+                    Util.refreshCart(res, function() {
+                        Stepper.init();
+                    });
                 }
             });
         }
@@ -31,21 +34,25 @@ var Stepper = {
     },
 
     // 增加商品数量
-    increase: function(productId, currNum, callback) {
+    increase: function(sku) {
         Util.ajax({
-            url: '/shopping/cart/product/' + productId + '/change_num',
+            url: '/shopping/cart/product/change_num',
             type: 'POST',
             data: {
                 changeType: 'INCREASE',
-                changeTo: parseInt(currNum, 10) + 1
+                sku: sku
+
+                // changeTo: parseInt(currNum, 10) + 1
             },
             success: function(res) {
-                if (res.code === '0') {
-                    return callback(res.num, res.changed);
-                } else {
-                    return callback(res.num, res.changed, res.code === '1000');
-                }
-
+                // if (res.code === '0') {
+                //     return callback(res.num, res.changed);
+                // } else {
+                //     return callback(res.num, res.changed, res.code === '1000');
+                // }
+                Util.refreshCart(res, function() {
+                    Stepper.init();
+                });
             }
         });
     },
@@ -53,7 +60,7 @@ var Stepper = {
     init: function() {
         var _this = this,
             $target,
-            productId;
+            sku;
 
         var steppers = $('.stepper'),
             $input,
@@ -77,8 +84,8 @@ var Stepper = {
             plus = $input.parent().next();
 
             if (!$target.hasClass('disable')) {
-                productId = $target.parent().attr('data-productId');
-                _this.decrease(productId, currNum, function(num, changed) {
+                sku = $.parseJSON($target.parents('ul').children().first().attr('data-product_info')).product_sku;
+                _this.decrease(sku, currNum, function(num, changed) {
                     if (num === 1) {
                         $input.val(1);
                         $target.addClass('disable');
@@ -103,8 +110,8 @@ var Stepper = {
             minus = $input.parent().prev();
 
             if (!$target.hasClass('disable')) {
-                productId = $target.parent().attr('data-productId');
-                _this.increase(productId, currNum, function(num, changed, overflow) {
+                sku = $.parseJSON($target.parents('ul').children().first().attr('data-product_info')).product_sku;
+                _this.increase(sku, currNum, function(num, changed, overflow) {
                     if (overflow) {
                         $target.addClass('disable');
                     }

@@ -6,6 +6,7 @@
  */
 var dialog = require('../../plugins/dialog');
 var _alert = dialog.Alert;
+var hbs = require('yoho-handlebars');
 
 var Util = {
     ajax: function(options) {
@@ -27,6 +28,45 @@ var Util = {
                 new _alert('网络异常，稍后请重试').show();
             }
         });
+    },
+
+    /*
+     *  根据服务端JSON,刷新购物车信息
+     *  @function [refreshCart]
+     */
+    refreshCart: function(data, callback) {
+        var template;
+
+        hbs.registerHelper('multiple', function(num1, num2) {
+            num1 = typeof num1 === 'number' ? num1 : parseFloat(num1, 10);
+            num2 = typeof num2 === 'number' ? num2 : parseFloat(num2, 10);
+
+            if (num1 && num2) {
+                return num1 * num2;
+            } else {
+                console.error('multiplication needs two number parameters');
+            }
+        });
+
+        hbs.registerHelper('isEqual', function(v1, v2, options) {
+            if (v1 === v2) {
+                return options.fn(this);
+            }
+            return options.inverse(this);
+        });
+
+        hbs.registerHelper('image', function(url, width, height, mode) {
+            mode = parseInt(mode, 10) ? mode : 2;
+            url = url || '';
+            return url.replace(/{width}/g, width).replace(/{height}/g, height).replace(/{mode}/g, mode);
+        });
+
+        template = hbs.compile($('#cart-content-tpl').html());
+        $('#cart_content').html(template(data));
+
+        if (callback) {
+            return callback();
+        }
     }
 };