分类排序

ghsApp/src/mixins/product2.js

@@ -40,7 +40,8 @@ export default {
 			globalScrollTopOldPlace:0,
 			globalIsRequesting:false,
 			globalCgMyCharge:0,
-			globalLookStock:0
+			globalLookStock:0,
+			globalDefaultClassId:0
 		};
 	},
 	onLoad(options) {
@@ -146,6 +147,7 @@ export default {
 				if(res.code == 1){
 					that.globalClassData = res.data.class ? res.data.class : []
 					that.globalClassDataIndex = res.data.classIndex ? res.data.classIndex : []
+					that.globalDefaultClassId = res.data.defaultClassId?res.data.defaultClassId:0
 					if(that.globalClassData[0]){
 						that.globalClassId = that.globalClassData[0].id
 						//保存到仓库
@@ -183,10 +185,24 @@ export default {
 				}
 			})
         },
-		sorts_fun(arr) {
+		sorts_fun(arr, lastValue = null) {
 			return function(a, b) {
 				var v1 = a[arr];
 				var v2 = b[arr];
+				
+				// 如果两个都是要排到最后的值
+				if (v1 === lastValue && v2 === lastValue) {
+					return 0;
+				}
+				// 如果 a 是要排到最后的值，就排后面
+				if (v1 === lastValue) {
+					return 1;
+				}
+				// 如果 b 是要排到最后的值，就排后面
+				if (v2 === lastValue) {
+					return -1;
+				}
+				// 其他情况正常升序排列
 				return v1 - v2;
 			}
 		},
@@ -204,7 +220,7 @@ export default {
 			//修改数据需要复制一份，否则不会生效
 			that.globalItemData = copyObject(that.globalItemData);
 
-			that.globalItemData = that.globalItemData.sort(this.sorts_fun('classId'))
+			that.globalItemData = that.globalItemData.sort(this.sorts_fun('classId', that.globalDefaultClassId))
 			let hasExists = []
 			for (let i=0;i<that.globalItemData.length;i++){
 				let currentProduct = that.globalItemData[i]