public ActionResult Index()
{
using (var artists = new ArtistsLibrary())
{
return View(artists.Artists.ToList<Artist>());
}
}
public bool Execute(IBackloadContext context, IIncomingRequestParam param)
{
if (context.HttpMethod == "POST")
{
// This extension validate if the artist is in the database, and returns a Bad Request status (400) if not.
// IMPORTANT: Don't forget to rebuild the extension when you changed code. Otherwise you may use the old extensions code.
using (var artists = new ArtistsLibrary())
{
var artist = artists.Artists.FirstOrDefault(a => a.ArtistId == param.BackloadValues.ObjectContext);
if (artist == null) // Artist not in list
{
// Stop further processing of the pipeline but all extensions can do their work (maybe logging, etc.).
// The outgoing extension will also be called, so you have the chance to change the response to the client.
context.PipelineControl.ExecutePipeline = false;
// Because we prevented the execution of the core pipeline (where the core method for executing
// this request is) we do not generate a FileUploadStatus which holds the status of all files this request
// handles. IIncomingRequest is the first extension point and FileUploadStatus is generated later in the core pipeline.
// This taken into account, we cannot send a message with each FileUploadStatusItem, instead we send a general error.
// If you want to send messages with the FileUploadStatus, do this in an extension like GetFilesRequest, StoreFileRequest
// or in the OutgoingResponse extension.
context.Request.RequestContext.HttpContext.Response.StatusCode = 400;
return true; // Return value is true, because the extension has changed properties.
}
}
}
return false; // No properties have been changed, so false is returned.
}
public bool ProcessStep(System.Web.HttpRequestBase request, string httpMethod)
{
if (httpMethod == "POST")
{
// Validate if the artist is in the database
using (var artists = new ArtistsLibrary())
{
var artist = artists.Artists.FirstOrDefault(a => a.ArtistId == this.ObjectContext);
if (artist == null) // Artist not in list
{
// Stop further processing of the pipeline but all extensions can do their work (maybe logging, etc.).
this.StopProcessing = StopProcessingType.StopProcessingPipelineOnly;
this.ProcessingMessage = "Artist not in list";
return true; // Return value is true, because the extension has changed properties.
}
}
}
return false; // No properties have been changed, so false is returned.
}
