diff --git a/global/global.go b/global/global.go
index feac2bc..fecac83 100644
--- a/global/global.go
+++ b/global/global.go
@@ -45,7 +45,16 @@ const (
 )
 
 var (
-	ROLE_ID_MAP = map[int]string{
-		0: "SYSTEM",
+	ID_ROLE_MAP = map[int]string{
+		0:  "SYSTEM",
+		4:  "VOLUNTEER",
+		8:  "WORKER",
+		12: "ADMIN",
+	}
+	ROLE_ID_MAP = map[string]int{
+		"SYSTEM":    0,
+		"VOLUNTEER": 4,
+		"WORKER":    8,
+		"ADMIN":     12,
 	}
 )