判断优先级

service/service_activity.go

@@ -5,6 +5,8 @@ import (
 	"fmt"
 	"go_sku_server/model"
 	"go_sku_server/pkg/gredis"
+	"go_sku_server/service/sorter"
+	"sort"
 	"strconv"
 	"strings"
 	"time"
@@ -30,6 +32,8 @@ func (as *ActivityService) GetActivityData(checkData model.ActivityCheckData) (p
 		if err != nil {
 			fmt.Println(err)
 		}
+		//对活动进行创建时间逆序排序,因为要以创建时间靠后的优先级最高
+		sort.Sort(sorter.ActivitySorter(activities))
 		if len(activities) != 0 {
 			priceActivity = as.GetPriceActivity(checkData, activities)
 		}

service/sorter/activity.go

+package sorter
+
+import "go_sku_server/model"
+
+// 阶梯价格排序算法
+type ActivitySorter []model.Activity
+
+func (a ActivitySorter) Len() int {
+	return len(a)
+}
+
+func (a ActivitySorter) Swap(i, j int) {
+	a[i], a[j] = a[j], a[i]
+}
+
+func (a ActivitySorter) Less(i, j int) bool {
+	return a[j].AddTime < a[i].AddTime
+}