Can mark related notifications as seen

src/helpers/NotificationsHelper.ts

@@ -218,7 +218,7 @@ export class NotificationsHelper {
 	 * 
 	 * @param n The notification
 	 */
-	private static async SimilarExists(n: Notif) : Promise<boolean> {
+	public static async SimilarExists(n: Notif) : Promise<boolean> {
 		return await DatabaseHelper.Count({
 			table: NOTIFICATIONS_TABLE,
 			where: this.NotifToDB(n, false)
@@ -286,6 +286,25 @@ export class NotificationsHelper {
 		return list.map((e) => this.DBToNotif(e));
 	}
 
+	/**
+	 * Get information about a single notification
+	 * 
+	 * @param notifID Target notification id
+	 */
+	public static async GetSingle(notifID: number) : Promise<Notif> {
+		const row = await DatabaseHelper.QueryRow({
+			table: NOTIFICATIONS_TABLE,
+			where: {
+				id: notifID
+			}
+		});
+
+		if(row == null)
+			throw new Error("Could not find notification !");
+		
+		return this.DBToNotif(row);
+	}
+
 	/**
 	 * Turn a notification into a database entry
 	 *