Can create groups membership notifications (moderator > user)

src/helpers/NotificationsHelper.ts

@@ -113,7 +113,30 @@ export class NotificationsHelper {
 		}
 
 
-		// TODO : continue
+		// Groups membership notifications
+		else if (n.onElemType == NotifElemType.GROUP_MEMBERSHIP) {
+
+			// Complete the notification
+			n.fromContainerType = NotifElemType.EMPTY;
+			n.fromContainerID = 0;
+
+			// Check whether the notification has to be pushed to a single user
+			// or to all the moderators of the group
+			if(n.hasDestUserID) {
+
+				//Push the notification in private way (if it has a destination,
+				//generally the target user of the membership request)
+				await this.PushPrivate(n);
+
+			}
+
+			else {
+
+				// Push the notification to all the moderators of the group
+				throw new Error("//TODO Push notification to all members of the group");
+
+			}
+		}
 
 		// Unsupported notification type
 		else {