add total item return

query/baseservice.go

@@ -31,10 +31,10 @@ func (g baseService) List() ([]string, error) {
 	return res, nil
 }
 
-func (g baseService) ListByPage(pageSize int, pageNum int) ([]string, error) {
+func (g baseService) ListByPage(pageSize int, pageNum int) ([]string, int, error) {
 	all, err := getAll(g.rdb, g.service)
 	if err != nil {
-		return nil, err
+		return nil, 0, err
 	}
 	sort.Sort(ServiceInfoList(all))
 	start := pageSize * pageNum
@@ -46,7 +46,7 @@ func (g baseService) ListByPage(pageSize int, pageNum int) ([]string, error) {
 	for _, v := range all[start:end] {
 		res = append(res, string(v.Message()))
 	}
-	return res, nil
+	return res, len(all), nil
 }
 
 func (g baseService) ServiceInfo(serviceid string) (string, error) {

query/interface.go

@@ -5,7 +5,7 @@ import "encoding/json"
 type ServiceQuery interface {
 	ModuleName() string
 	List() ([]string, error)
-	ListByPage(pageSize int, pageNum int) ([]string, error)
+	ListByPage(pageSize int, pageNum int) ([]string, int, error)
 	ServiceInfo(instance string) (string, error)
 }