public async Task <PaginatedResult <TItem> > MakePageAsync <TCount, TItem>(IRepositoryBase repository, IQueryable <TCount> countQuery,
IQueryable <TItem> itemsQuery, int page, int pageSize, CancellationToken cancellationToken = default)
where TCount : class where TItem : class
{
if (repository == null)
{
throw new ArgumentNullException(nameof(repository));
}
if (countQuery == null)
{
throw new ArgumentNullException(nameof(countQuery));
}
if (itemsQuery == null)
{
throw new ArgumentNullException(nameof(itemsQuery));
}
Paginator.ValidatePaging(page, pageSize);
var count = await repository.CountAsync(countQuery, cancellationToken);
var items = await repository.ListAsync(itemsQuery
.Skip((page - 1) * pageSize)
.Take(pageSize), cancellationToken);
return(PaginatedResult.From(items, count, page, pageSize));
}
private static async Task <PaginatedResult <TItem> > MakePageInternalAsync <TCount, TItem>(
IRepositoryBase repository,
IQueryable <TCount> countQuery,
IQueryable <TItem> itemsQuery,
int page,
int pageSize,
CancellationToken cancellationToken)
where TCount : class
where TItem : class
{
Paginator.ValidatePaging(page, pageSize);
var count = await repository.CountAsync(countQuery, cancellationToken);
var items = await repository.ListAsync(itemsQuery
.Skip((page - 1) * pageSize)
.Take(pageSize), cancellationToken);
return(PaginatedResult.From(items, count, page, pageSize));
}