public async Task <PagedCollectionResponse <Test> > GetPage(SampleFilterModel filter)
{
var tests = await _context.Tests.GetAll();
Func <SampleFilterModel, IEnumerable <Test> > filterData = (filterModel) =>
{
return(tests.Skip((filterModel.Page - 1) * filter.Limit)
.Take(filterModel.Limit));
};
var result = new PagedCollectionResponse <Test>();
result.Items = filterData(filter);
result.AllCount = tests.Count();
SampleFilterModel nextFilter = filter.Clone() as SampleFilterModel;
nextFilter.Page += 1;
//String nextUrl = filterData(nextFilter).Count() <= 0 ? null : this.Url.Action("Get", null, nextFilter, Request.Scheme);
//Get previous page URL string
SampleFilterModel previousFilter = filter.Clone() as SampleFilterModel;
previousFilter.Page -= 1;
//String previousUrl = previousFilter.Page <= 0 ? null : this.Url.Action("Get", null, previousFilter, Request.Scheme);
//result.NextPage = !String.IsNullOrWhiteSpace(nextUrl) ? new Uri(nextUrl) : null;
//result.PreviousPage = !String.IsNullOrWhiteSpace(previousUrl) ? new Uri(previousUrl) : null;
return(result);
}
public async Task <IActionResult> Get([FromQuery] SampleFilterModel sampleFilterModel)
{
var result = new PagedCollectionResponse <AuthorDTO>();
result.Items = await _authorService.GetPageAsync(sampleFilterModel);
SampleFilterModel nextFilter = sampleFilterModel.Clone() as SampleFilterModel;
nextFilter.Page += 1;
String nextUrl = !_authorService.GetPageAsync(nextFilter).Result.Any() ? null : this.Url.Action("Get", null, nextFilter, Request.Scheme);
SampleFilterModel previousFilter = sampleFilterModel.Clone() as SampleFilterModel;
previousFilter.Page -= 1;
String previousUrl = previousFilter.Page <= 0 ? null : this.Url.Action("Get", null, previousFilter, Request.Scheme);
result.NextPage = !String.IsNullOrWhiteSpace(nextUrl) ? new Uri(nextUrl) : null;
result.PreviousPage = !String.IsNullOrWhiteSpace(previousUrl) ? new Uri(previousUrl) : null;
return(Json(result));
}