diff --git a/src/graphql/models/groupModel.ts b/src/graphql/models/groupModel.ts
index fe5467bffbbb067e58103968ab70956167c6221b..63d90257e2d9c30e830ef2233ff5db8283f69734 100644
--- a/src/graphql/models/groupModel.ts
+++ b/src/graphql/models/groupModel.ts
@@ -136,6 +136,21 @@ export class GroupModel {
         return res;
     }
 
+    /**
+     * @memberof GraphQL.GroupModel#
+     * @function getAllMetaGroups
+     * @summary Fonction qui renvoie tous les groupes metas du groupe simple.
+     * @arg {string} gid - identifiant du groupe en question.
+     * @return {GroupSet} Renvoie le tableau de groupes correspondant
+     * @rights connectedOrOnplatal
+     */
+    getAllMetaGroups(gid: string): Promise<GroupSet> {
+        let arg=new GroupSet();
+        arg.add(gid);
+        let res=Tools.metaGroupsOfGroups(arg);
+        return res;
+    }
+
     /**
      * @memberof GraphQL.GroupModel#
      * @function likeGroup