Can check following status of a friend

src/helpers/FriendsHelper.ts

@@ -128,6 +128,24 @@ export class FriendsHelper {
 		}) > 0;
 	}
 
+	/**
+	 * Check whether a user is following a friend or not
+	 * 
+	 * @param userID The ID of the user supposed to following a friend
+	 * @param friendID The target friend
+	 */
+	public static async IsFollowing(userID: number, friendID: number) : Promise<boolean> {
+		return await DatabaseHelper.Count({
+			table: FRIENDS_TABLE,
+			where: {
+				ID_personne: userID,
+				ID_amis: friendID,
+				actif: 1,
+				abonnement: 1
+			}
+		}) > 0;
+	}
+
 	/**
 	 * Check out whether friendship allows to create posts or not
 	 *