sale page bug

@@ -731,9 +731,9 @@ exports.handlePagerData = (total, params) => {
         pages: []
     };
 
-    let currentPage = parseInt((_.isEmpty(params.page) ? 1 : params.page), 10); // 当前页
-    let perPageCount = parseInt((_.isEmpty(params.limit) ? 60 : params.limit), 10); // 每页商品数
-    let totalPage = parseInt(total / perPageCount, 10) + 1; // 总页数
+    let currentPage = parseInt(_.get(params, 'page', 1), 10); // 当前页
+    let perPageCount = parseInt(_.get(params, 'limit', 60), 10); // 每页商品数
+    let totalPage = Math.ceil(total / perPageCount); // 总页数
 
     if (currentPage === 1) {
         // 当前页为 1，一定没有上一页
@@ -773,12 +773,15 @@ exports.handlePagerData = (total, params) => {
         }
     } else if (currentPage > totalPage - 2) {
         for (let i = totalPage; i >= totalPage - 4; i--) {
+
+            if (i > 0) {
                 pages.push({
                     url: handleFilterUrl(params, {page: i}),
                     num: i,
                     cur: currentPage === i
                 });
             }
+        }
         pages = _.sortBy(pages, ['num']);
     }
 
@@ -795,7 +798,7 @@ exports.handlePagerData = (total, params) => {
                 num: '...'
             });
         }
-        if (currentPage < totalPage - 2) {
+        if (currentPage < totalPage - 2 && totalPage > 5) {
             nextPages.push({
                 num: '...'
             });