Return the like status of a user over a group

src/helpers/LikesHelper.ts

@@ -49,4 +49,24 @@ export class LikesHelper {
 		})
 	}
 
+
+	/**
+	 * Check out whether the user likes an element or not
+	 * 
+	 * @param userID ID of the user
+	 * @param id ID of the thing to check 
+	 * @param type The kind of the element
+	 */
+	public static async IsLiking(userID: number, id: number, type: LikesType) : Promise<boolean> {
+		if(userID == 0) return false;
+
+		return await DatabaseHelper.Count({
+			table: LIKES_TABLE,
+			where: {
+				ID_type: id,
+				type: LikesKindsDB[type],
+				ID_personne: userID
+			}
+		}) == 1;
+	}
 }