sort cache

@@ -18,6 +18,7 @@ const crypto = global.yoho.crypto;
 const _ = require('lodash');
 const md5 = require('md5');
 const redis = global.yoho.redis;
+const cache = global.yoho.cache;
 
 // const limitNum = 60; // 商品每页显示数目
 const needParams = ['query', 'msort', 'misort', 'category_id', 'gender', 'shelveTime'];
@@ -33,6 +34,20 @@ const positionId = 10;
 // 获取分类左侧广告id
 const sortAdsId = 79;
 
+const sortCache = {
+    key: 'global:yoho:category:name:',
+    get(categoryId) {
+        if (!categoryId) {
+            return Promise.resolve(false);
+        }
+
+        return cache.get(this.key + categoryId);
+    },
+    set(categoryId, sortName) {
+        return cache.set(this.key + categoryId, sortName);
+    }
+};
+
 /**
  * 获取商品分类列表数据
  */
@@ -58,7 +73,8 @@ function getListData(params, channel) {
     let apiMethod = [
         headerModel.requestHeaderData(channel, true),
         this.searchApi.getSortList({}, channel),
-        this.searchApi.getProductList(searchParams, 'categoryList')
+        this.searchApi.getProductList(searchParams, 'categoryList'),
+        sortCache.get(searchParams.category_id)
     ];
 
     // 搜索分类介绍和广告
@@ -125,13 +141,13 @@ function getListData(params, channel) {
         }
 
         // 分类介绍
-        if (result[3] && result[3].code === 200) {
-            finalResult.list.sortIntro = searchHandler.handleSortIntro(result[3].data);
+        if (result[4] && result[4].code === 200) {
+            finalResult.list.sortIntro = searchHandler.handleSortIntro(result[4].data);
         }
 
         // 分类广告
-        if (result[4] && result[4].code === 200) {
-            Object.assign(finalResult.list.leftContent, searchHandler.handleSortAds(result[4].data));
+        if (result[5] && result[5].code === 200) {
+            Object.assign(finalResult.list.leftContent, searchHandler.handleSortAds(result[5].data));
         }
 
         let sortName;
@@ -150,7 +166,20 @@ function getListData(params, channel) {
             }
         });
 
-        const seo = seoHandler.getListSeo(sortList, checkedList);
+        let extendParam = {};
+
+        if (searchParams.category_id) {
+            let cacheSortName = result[3];
+
+            if (!sortName && cacheSortName) {
+                sortName = cacheSortName;
+                extendParam.sort = cacheSortName;
+            } else if (sortName && sortName !== cacheSortName) {
+                sortCache.set(searchParams.category_id, sortName);
+            }
+        }
+
+        const seo = seoHandler.getListSeo(sortList, checkedList, extendParam);
 
         if (sortName) {
             return redis.all([

@@ -85,8 +85,8 @@ const listDefaultTdk = {
  * @param checked
  * @returns {{title: string, keywords: string, description: string}}
  */
-const getListSeo = (sorts, checked) => {
-    let {brand, channel, color, style, sort} = getSeoCheckedParamsName(sorts, checked);
+const getListSeo = (sorts, checked, extend = {}) => {
+    let {brand, channel, color, style, sort} = Object.assign(getSeoCheckedParamsName(sorts, checked), extend);
 
     if (brand && _.indexOf(brand, '、') > -1) {
         brand = '';