protected async Task <int> GetTotalPages(
ArticlesQuery request,
bool onlyAvailable = true,
int?journalistId = default,
CancellationToken cancellationToken = default)
{
var articleSpecification = this.GetArticleSpecification(request, onlyAvailable);
var journalistSpecification = this.GetJournalistSpecification(request, journalistId);
var totalArticles = await this.articleRepository.Total(
articleSpecification,
journalistSpecification,
cancellationToken);
return((int)Math.Ceiling((double)totalArticles / ArticlesPerPage));
}
protected async Task <IEnumerable <TOutputModel> > GetArticleListings <TOutputModel>(
ArticlesQuery request,
bool onlyAvailable = true,
int?journalistId = default,
CancellationToken cancellationToken = default)
{
var articleSpecification = this.GetArticleSpecification(request, onlyAvailable);
var journalistSpecification = this.GetJournalistSpecification(request, journalistId);
var searchOrder = new ArticlesSortOrder(request.SortBy, request.Order);
var skip = (request.Page - 1) * ArticlesPerPage;
return(await this.articleRepository.GetArticleListings <TOutputModel>(
articleSpecification,
journalistSpecification,
searchOrder,
skip,
take : ArticlesPerPage,
cancellationToken));
}
private Specification <Journalist> GetJournalistSpecification(ArticlesQuery request, int?journalistId) => new JournalistByIdSpecification(journalistId) .And(new JournalistByNickNameSpecification(request.Journalist));
private Specification <Article> GetArticleSpecification(ArticlesQuery request, bool onlyAvailable) => new ArticleByCategorySpecification(request.Category) .And(new ArticleOnlyAvailableSpecification(onlyAvailable));
