getcasebyid缺少返回值

models/sys.go

@@ -276,5 +276,5 @@ func GetCaseByID(caseID string) (cs *model.SysCase, err error) {
 	cs = new(model.SysCase)
 
 	_, err = DBEngine.Where("case_id=?", caseID).Get(cs)
-	return
+	return cs, err
 }