'上一页下一页'

@@ -25,21 +25,21 @@ const handleFilterUrl = (originParam, newParam) => {
     let newParamArray = _.keys(newParam);
 
     // 判断参数是否已经存在
-    let isExist = !_.isEmpty(_.find(originParamArray, function(o) {
+    let isExist = !_.isEmpty(_.find(originParamArray, function (o) {
         return o === newParamArray[0];
     }));
 
     if (isExist) {
         tempOriginParam = Object.assign(tempOriginParam, originParam);
 
-        _.forEach(newParam, function(value, key) {
+        _.forEach(newParam, function (value, key) {
             tempOriginParam[key] = value;
         });
     } else {
         tempOriginParam = Object.assign(tempOriginParam, originParam, newParam);
     }
 
-    _.forEach(tempOriginParam, function(value, key) {
+    _.forEach(tempOriginParam, function (value, key) {
         dest = dest + key + '=' + value + '&';
     });
 
@@ -80,8 +80,8 @@ const handleSalebreakingYardsSortData = (origin, params) => {
     if (!_.isEmpty(params.sort)) {
 
         // 是否有分类筛选参数，如果有
-        _.forEach(params.sort.split(','), function(sortParam) {
-            _.forEach(origin, function(value) {
+        _.forEach(params.sort.split(','), function (sortParam) {
+            _.forEach(origin, function (value) {
 
                 // 判断是否在这组数据里面
                 if (!_.isEmpty(_.find(value.sort_id.split(','), o => {
@@ -89,7 +89,7 @@ const handleSalebreakingYardsSortData = (origin, params) => {
                     }))) {
 
                     // 如果在某组数据里面，组合数据退出循环
-                    _.forEach(value.sub, function(subValue) {
+                    _.forEach(value.sub, function (subValue) {
                         let size = {};
 
                         size.checked =
@@ -104,8 +104,8 @@ const handleSalebreakingYardsSortData = (origin, params) => {
             });
         });
     } else { // 如果没有筛选参数，返回所有分类
-        _.forEach(origin, function(value) {
-            _.forEach(value.sub, function(subValue) {
+        _.forEach(origin, function (value) {
+            _.forEach(value.sub, function (subValue) {
                 let size = {};
 
                 size.checked = (parseInt(params.size, 10) === parseInt(subValue.size_id, 10)) ? true : false;
@@ -329,14 +329,6 @@ exports.handleSaleOptsData = (params, total) => {
 
     dest.curPage = _.isEmpty(params.page) ? 1 : params.page; // 当前页码数
 
-    // 上一页下一页
-    let preHref = (!_.isEmpty(params.page) && parseInt(params.page, 10) > 1) ?
-        parseInt(params.page, 10) - 1 : 1;
-    let nextHref = (!_.isEmpty(params.page)) ? parseInt(params.page, 10) + 1 : 2;
-
-    dest.preHref = handleFilterUrl(params, {page: preHref});
-    dest.nextHref = handleFilterUrl(params, {page: nextHref});
-
     // 每页商品数量
     dest.countPerPage = _.isEmpty(params.limit) ? 60 : params.limit;
 
@@ -346,6 +338,20 @@ exports.handleSaleOptsData = (params, total) => {
     // 每页多少商品
     let paramsLimit = parseInt((_.isEmpty(params.limit) ? 60 : params.limit), 10);
 
+    // 上一页下一页
+    let preHref = (!_.isEmpty(params.page) && parseInt(params.page, 10) > 1) ?
+        parseInt(params.page, 10) - 1 : 1;
+    let nextHref = (!_.isEmpty(params.page)) ? parseInt(params.page, 10) + 1 : 2;
+
+    if (dest.pageCount > 1 && (parseInt(params.page, 10) !== 1) &&
+        (parseInt(params.page, 10) !== dest.pageCount)) {
+        dest.preHref = handleFilterUrl(params, {page: preHref});
+        dest.nextHref = handleFilterUrl(params, {page: nextHref});
+    } else if (dest.pageCount > 1 && (parseInt(params.page, 10) === 1)) {
+        dest.nextHref = handleFilterUrl(params, {page: nextHref});
+    } else if (dest.pageCount > 1 && (parseInt(params.page, 10) === dest.pageCount)) {
+        dest.preHref = handleFilterUrl(params, {page: preHref});
+    }
     // 商品开始结束数
     dest.start = (!_.isEmpty(params.page) ? (params.page - 1) : 0) * paramsLimit + 1;
     dest.end = (dest.pageCount === parseInt(params.page, 10)) ?
@@ -374,7 +380,7 @@ exports.handleSaleSortData = (origin, params, extra) => {
     leftContent.allSort.list.push(perAllSort);
 
 
-    _.forEach(origin, function(value) {
+    _.forEach(origin, function (value) {
 
         let category = {};
 
@@ -383,7 +389,7 @@ exports.handleSaleSortData = (origin, params, extra) => {
         category.childList = [];
         category.href = handleFilterUrl(params, {sort: value.relation_parameter.sort});
         category.active = false;
-        _.forEach(value.sub, function(subValue) {
+        _.forEach(value.sub, function (subValue) {
             category.childList.push({
                 name: subValue.category_name,
                 num: subValue.node_count,
@@ -451,7 +457,7 @@ exports.handleSaleFilterData = (origin, params) => {
     if (!_.isEmpty(origin.brand)) {
         let count = 0;
 
-        _.forEach(origin.brand, function(value) {
+        _.forEach(origin.brand, function (value) {
             let brand = {};
 
             brand.checked = (parseInt(params.brand, 10) === parseInt(value.id, 10)) ? true : false;
@@ -477,13 +483,13 @@ exports.handleSaleFilterData = (origin, params) => {
     }
 
     // 来排排序
-    dest.brand.brandsShow = _.sortBy(dest.brand.brandsShow, function(o) {
+    dest.brand.brandsShow = _.sortBy(dest.brand.brandsShow, function (o) {
         return o.index;
     });
 
     // 处理 价格 筛选数据
     if (!_.isEmpty(origin.priceRange)) {
-        _.forEach(origin.priceRange, function(value, key) {
+        _.forEach(origin.priceRange, function (value, key) {
             let price = {
                 checked: (params.price === key) ? true : false,
                 href: handleFilterUrl(params, {price: key}),
@@ -567,9 +573,9 @@ exports.handleBannerData = (origin) => {
     var dest = {};
 
     dest.list = [];
-    _.forEach(origin, function(value) {
+    _.forEach(origin, function (value) {
         if (value.template_name === 'focus') {
-            _.forEach(value.data, function(subValue) {
+            _.forEach(value.data, function (subValue) {
                 let banner = {};
 
                 banner.bannerHeight = 450;

@@ -531,14 +531,6 @@ exports.handleSaleOptsData = (params, total, extra) => {
 
     dest.curPage = _.isEmpty(params.page) ? 1 : params.page; // 当前页码数
 
-    // 上一页下一页
-    let preHref = (!_.isEmpty(params.page) && parseInt(params.page, 10) > 1) ?
-    parseInt(params.page, 10) - 1 : 1;
-    let nextHref = (!_.isEmpty(params.page)) ? parseInt(params.page, 10) + 1 : 2;
-
-    dest.preHref = handleFilterUrl(params, {page: preHref});
-    dest.nextHref = handleFilterUrl(params, {page: nextHref});
-
     // 每页商品数量
     dest.countPerPage = _.isEmpty(params.limit) ? 60 : params.limit;
 
@@ -548,6 +540,21 @@ exports.handleSaleOptsData = (params, total, extra) => {
     // 每页多少商品
     let paramsLimit = parseInt((_.isEmpty(params.limit) ? 60 : params.limit), 10);
 
+    // 上一页下一页
+    let preHref = (!_.isEmpty(params.page) && parseInt(params.page, 10) > 1) ?
+        parseInt(params.page, 10) - 1 : 1;
+    let nextHref = (!_.isEmpty(params.page)) ? parseInt(params.page, 10) + 1 : 2;
+
+    if (dest.pageCount > 1 && (parseInt(params.page, 10) !== 1) &&
+        (parseInt(params.page, 10) !== dest.pageCount)) {
+        dest.preHref = handleFilterUrl(params, {page: preHref});
+        dest.nextHref = handleFilterUrl(params, {page: nextHref});
+    } else if (dest.pageCount > 1 && (parseInt(params.page, 10) === 1)) {
+        dest.nextHref = handleFilterUrl(params, {page: nextHref});
+    } else if (dest.pageCount > 1 && (parseInt(params.page, 10) === dest.pageCount)) {
+        dest.preHref = handleFilterUrl(params, {page: preHref});
+    }
+
     // 商品开始结束数
     dest.start = (!_.isEmpty(params.page) ? (params.page - 1) : 0) * paramsLimit + 1;
     dest.end = (dest.pageCount === parseInt(params.page, 10)) ?