Can get the number of unread notifications

src/helpers/NotificationsHelper.ts

@@ -0,0 +1,28 @@
+import { DatabaseHelper } from "./DatabaseHelper";
+
+/**
+ * Notifications helper
+ * 
+ * @author Pierre HUBERT
+ */
+
+const NOTIFICATIONS_TABLE = "comunic_notifications";
+
+export class NotificationsHelper {
+	
+	/**
+	 * Count the number of unread notifications of a user
+	 * 
+	 * @param userID Target user ID
+	 */
+	public static async CountUnread(userID: number) : Promise<number> {
+		return await DatabaseHelper.Count({
+			table: NOTIFICATIONS_TABLE,
+			where: {
+				dest_user_id: userID,
+				seen: 0
+			}
+		});
+	}
+
+}