public static async Task <Result> BrokerHasApartmentAd(
this ICurrentUser currentUser,
IBrokerRepository brokerRepository,
int apartmentAdId,
CancellationToken cancellationToken)
{
var brokerId = await brokerRepository.GetBrokerId(
currentUser.UserId,
cancellationToken);
var brokerHasApartment = await brokerRepository.HasApartmentAd(
brokerId,
apartmentAdId,
cancellationToken);
return(brokerHasApartment
? Result.Success
: "You cannot edit this apartment ad.");
}