using FluentValidation; using WatchIt.Database; namespace WatchIt.DTO.Models.Controllers.Accounts.AccountUsername; public class AccountUsernameRequestValidator : AbstractValidator { #region CONSTRUCTORS public AccountUsernameRequestValidator(DatabaseContext database) { RuleFor(x => x.Username).MinimumLength(5) .MaximumLength(50) .CannotBeIn(database.Accounts, x => x.Username).WithMessage("Username is already used"); } #endregion }