public void ObtainTenPageMetaData_GivenPageSizeOfOneOnFirstPage()
{
PaginationHelper paginationHelper = new PaginationHelper();
PaginationHeaderResponse paginationHeaderResponse = paginationHelper.AddPaginationHeaderMetaDataToResponse(
CreateMockPaginatedResult(1, 1, 10, 1),
CreateMockCurrentFilters(),
CreateMockOrderByQueryParams(),
"ApplicationList",
CreateMockUrlHelper(),
CreateMockHttpResponse()
);
Assert.True(paginationHeaderResponse.Current == 1, $"Expecting current page to be 1, but actual current value is {paginationHeaderResponse.Current}");
Assert.True(paginationHeaderResponse.Count == 10, $"Expecting result count to be 10, but actual current value is {paginationHeaderResponse.Count}");
Assert.True(paginationHeaderResponse.Size == 1, $"Expecting result page size to be 1, but actual current value is {paginationHeaderResponse.Size}");
Assert.True(paginationHeaderResponse.Total == 10, $"Expecting result total to be 10, but actual current value is {paginationHeaderResponse.Total}");
string expectedNextUrl = "https://www.test-domain.com?page=2&size=1&filterName=testFilterName&orderBy=test1_desc,test2";
Assert.True(paginationHeaderResponse.Next == expectedNextUrl, $"Expecting next URL to be '{expectedNextUrl}', but actual value is '{paginationHeaderResponse.Next}'");
Assert.True(paginationHeaderResponse.Prev == null, $"Expecting null Prev URL, but obtained the following {paginationHeaderResponse.Prev}");
string expectedFirstUrl = "https://www.test-domain.com?page=1&size=1&filterName=testFilterName&orderBy=test1_desc,test2";
Assert.True(paginationHeaderResponse.First == expectedFirstUrl, $"Expected a first page URL of '{expectedFirstUrl}', but obtained the following: '{paginationHeaderResponse.First}'");
string expectedLastUrl = "https://www.test-domain.com?page=10&size=1&filterName=testFilterName&orderBy=test1_desc,test2";
Assert.True(paginationHeaderResponse.Last == expectedLastUrl, $"Expected a last page URL of '{expectedLastUrl}', but obtained the following: '{paginationHeaderResponse.Last}'");
}
public PaginationHeaderResponse AddPaginationHeaderMetaDataToResponse <T>(IPaginatedResult <T> paginatedResult, List <KeyValuePair <string, string> > filters, string orderBy, string pageRouteName,
IUrlHelper urlHelper, HttpResponse response) where T : class
{
var previousPageLink = paginatedResult.CurrentPage > 1
? CreatePagedLinkRelToCurrentPage(paginatedResult, filters, orderBy, urlHelper, pageRouteName, -1)
: null;
var nextPageLink = HasNextPage(paginatedResult)
? CreatePagedLinkRelToCurrentPage(paginatedResult, filters, orderBy, urlHelper, pageRouteName, 1)
: null;
var first = CreatePageLink(pageSize: paginatedResult.PageSize,
pageNumber: 1,
pageRouteName: pageRouteName,
filters: filters,
orderBy: orderBy,
urlHelper: urlHelper);
var last = CreatePageLink(pageSize: paginatedResult.PageSize,
pageNumber: GetTotalPages(paginatedResult),
pageRouteName: pageRouteName,
filters: filters,
orderBy: orderBy,
urlHelper: urlHelper);
PaginationHeaderResponse paginationHeaderResponse = new PaginationHeaderResponse
{
Total = GetTotalPages(paginatedResult),
Size = paginatedResult.PageSize,
Count = paginatedResult.RowCount,
Current = paginatedResult.CurrentPage,
Prev = previousPageLink,
Next = nextPageLink,
First = first,
Last = last
};
response.Headers.Add("X-Pagination", JsonConvert.SerializeObject(paginationHeaderResponse));
return(paginationHeaderResponse);
}
