private async Task TransformResultAsync <TData>(
ResultExecutingContext context,
ObjectResult result,
IQueryable <TData> query)
{
var page = (int)context.RouteData.Values[nameof(PaginatedAttribute) + ".page"];
var perPage = (int)context.RouteData.Values[nameof(PaginatedAttribute) + ".perPage"];
int rowCount = await query.CountAsync();
if (rowCount == 0)
{
result.Value = Array.Empty <object>();
return;
}
var pageCount = (int)Math.Ceiling((double)rowCount / perPage);
if (page > pageCount)
{
context.Result = new NotFoundResult();
return;
}
AddLinkHeader(context, page, perPage, pageCount);
IServiceProvider requestServices = context.HttpContext.RequestServices;
var urlHelperFactory = requestServices.GetRequiredService <IUrlHelperFactory>();
IUrlHelper urlHelper = urlHelperFactory.GetUrlHelper(context);
var serviceProvider = new ExtendedServiceProvider(requestServices)
{
urlHelper,
context.HttpContext
};
result.Value = query.Skip((page - 1) * perPage)
.Take(perPage)
.AsEnumerable()
.Select(o => ActivatorUtilities.CreateInstance(serviceProvider, ResultType, o));
}
public static IKeyInfoService CreateFactoryService()
{
var provider = new ExtendedServiceProvider();
return(provider.GetService <IKeyInfoService>());
}
public static IKeyInfoService CreateFactoryService()
{
var provider = new ExtendedServiceProvider();
return provider.GetService<IKeyInfoService>();
}