protected async Task <int> GetTotalPages(
CarAdsQuery request,
bool onlyAvailable = true,
int?dealerId = default,
CancellationToken cancellationToken = default)
{
var carAdSpecification = this.GetCarAdSpecification(request, onlyAvailable);
var dealerSpecification = this.GetDealerSpecification(request, dealerId);
var totalCarAds = await this.carAdRepository.Total(
carAdSpecification,
dealerSpecification,
cancellationToken);
return((int)Math.Ceiling((double)totalCarAds / CarAdsPerPage));
}
protected async Task <IEnumerable <TOutputModel> > GetCarAdListings <TOutputModel>(
CarAdsQuery request,
bool onlyAvailable = true,
int?dealerId = default,
CancellationToken cancellationToken = default)
{
var carAdSpecification = this.GetCarAdSpecification(request, onlyAvailable);
var dealerSpecification = this.GetDealerSpecification(request, dealerId);
var searchOrder = new CarAdsSortOrder(request.SortBy, request.Order);
var skip = (request.Page - 1) * CarAdsPerPage;
return(await this.carAdRepository.GetCarAdListings <TOutputModel>(
carAdSpecification,
dealerSpecification,
searchOrder,
skip,
take : CarAdsPerPage,
cancellationToken));
}
private Specification <CarAd> GetCarAdSpecification(CarAdsQuery request, bool onlyAvailable) => new CarAdByManufacturerSpecification(request.Manufacturer) .And(new CarAdByCategorySpecification(request.Category)) .And(new CarAdByPricePerDaySpecification(request.MinPricePerDay, request.MaxPricePerDay)) .And(new CadAdOnlyAvailableSpecification(onlyAvailable));
private Specification <Dealer> GetDealerSpecification(CarAdsQuery request, int?dealerId) => new DealerByIdSpecification(dealerId) .And(new DealerByNameSpecification(request.Dealer));