public PagedQueryable <T> Paginate <T>(SortedQueryable <T> source)
{
var limit = source.Items.Count();
var paginationInfo = new PaginationInfo(0, limit, limit, 1);
return(new PagedQueryable <T>(source.Items, paginationInfo, source.Sorting));
}
public PagedQueryable <T> Paginate <T>(SortedQueryable <T> source)
{
var items = source.Items;
var limit = items.LongCount();
var paginationInfo = new PaginationInfo(0, (int)limit, false);
return(new PagedQueryable <T>(source.Items, paginationInfo, source.Sorting));
}
public When_creating_a_no_pagination_request()
{
var fixture = new Fixture();
Sut = new NoPaginationRequest();
var items = fixture
.CreateMany <Guid>(Math.Abs(fixture.Create <int>()) + 1)
.Select((guid, i) => new KeyValuePair <int, Guid>(i, guid));
_queryableItems = new SortedQueryable <KeyValuePair <int, Guid> >(
items.AsQueryable(),
new SortingHeader("Key", SortOrder.Ascending));
}
protected PaginationTestContext()
{
Fixture = new Fixture();
// ReSharper disable once VirtualMemberCallInConstructor
Sut = SetUp();
var listSize = Sut.Offset + Sut.Limit + CreatePositive();
var items = Fixture
.CreateMany <Guid>(listSize)
.Select((guid, i) => new KeyValuePair <int, Guid>(i, guid));
QueryableItems = new SortedQueryable <KeyValuePair <int, Guid> >(
items.AsQueryable(),
new SortingHeader("Key", SortOrder.Ascending));
}
protected override PaginationRequest SetUp()
{
_limit = CreatePositive();
_offset = CreatePositive();
var listSize = _offset + _limit - 1;
var items = Fixture
.CreateMany <Guid>(listSize)
.Select((guid, i) => new KeyValuePair <int, Guid>(i, guid));
_queryableItems = new SortedQueryable <KeyValuePair <int, Guid> >(
items.AsQueryable(),
new SortingHeader("Key", SortOrder.Ascending));
return(new PaginationRequest(_offset, _limit));
}
public PagedQueryable <T> Paginate <T>(SortedQueryable <T> source)
{
var items = source.Items;
var itemsInRequestedPage = new List <T>().AsQueryable();
if (Limit > 0)
{
itemsInRequestedPage = items
.Skip(Offset)
.Take(Limit);
}
var totalItemSize = items.Count();
var totalPages = (int)Math.Ceiling((double)totalItemSize / Limit);
var paginationInfo = new PaginationInfo(Offset, Limit, totalItemSize, totalPages);
return(new PagedQueryable <T>(itemsInRequestedPage, paginationInfo, source.Sorting));
}
public PagedQueryable <T> Paginate <T>(SortedQueryable <T> source)
{
var items = source.Items;
if (Limit == 0)
{
return(new PagedQueryable <T>(
new List <T>().AsQueryable(),
new PaginationInfo(Offset, Limit, false),
source.Sorting));
}
var itemsInRequestedPage = items
.Skip(Offset)
.Take(Limit + 1);
return(new PagedQueryable <T>(
itemsInRequestedPage.Take(Limit),
new PaginationInfo(Offset, Limit, itemsInRequestedPage.Count() > Limit),
source.Sorting));
}
public static PagedQueryable <T> WithPagination <T>(this SortedQueryable <T> source, IPaginationRequest paginationRequest) => paginationRequest.Paginate(source);