using System.Data; using AfRApay.Web.Backend; using LinqToDB; using Microsoft.AspNetCore.Mvc.RazorPages; namespace AfRApay.Web.Pages; public class UpdateBalanceModel : PageModel { public void OnGet(int id, decimal amount) { var db = new Database.DbConn(); var user = db.Users.FirstOrDefault(p => p.Id == id); if (user == null) { Response.Redirect("/Error"); return; } switch (user.Balance + amount) { case < -50: throw new ConstraintException("Balance too low!"); case > 999: throw new ConstraintException("Balance too high!"); } user.Balance += amount; db.Update(user); Response.Redirect($"/#{user.Nickname}"); } }