fix

models/response/purchase/purchase.go

@@ -41,10 +41,10 @@ func (p PurchaseList) Len() int {
 }
 
 func (p PurchaseList) Less(i, j int) bool {
-	return true
-	//time1, _ := unix.TimeToTimespec(p[i].Time)
-	//time2, _ := unix.TimeToTimespec(p[j].Time)
-	//return unix.TimespecToNsec(time1) > unix.TimespecToNsec(time2)
+	//return true
+	time1, _ := unix.TimeToTimespec(p[i].Time)
+	time2, _ := unix.TimeToTimespec(p[j].Time)
+	return unix.TimespecToNsec(time1) > unix.TimespecToNsec(time2)
 }
 
 func (p PurchaseList) Swap(i, j int) {