private string PostSlideForm(Form form, long tenantId, long pageId, long elementId)
{
// Get carousel slide details
long carouselSlideId = Convert.ToInt64(form.Data);
string uploadIds = ((UploadField)form.Fields["upload"]).Value;
string pageValue = ((SelectListField <string>)form.Fields["page"]).Value;
CarouselSlide slide = new CarouselSlide
{
TenantId = tenantId,
ElementId = elementId,
CarouselSlideId = carouselSlideId,
Name = ((TextField)form.Fields["name"]).Value,
Description = ((MultiLineTextField)form.Fields["description"]).Value,
PageText = ((TextField)form.Fields["pageText"]).Value,
PageId = pageValue == string.Empty ? null : (long?)Convert.ToInt64(pageValue),
PageTenantId = pageValue == string.Empty ? null : (long?)tenantId
};
if (!string.IsNullOrWhiteSpace(uploadIds))
{
string[] uploadParts = uploadIds.Split('|');
slide.ImageTenantId = tenantId;
slide.ThumbnailImageUploadId = Convert.ToInt64(uploadParts[0]);
slide.PreviewImageUploadId = Convert.ToInt64(uploadParts[1]);
slide.ImageUploadId = Convert.ToInt64(uploadParts[2]);
}
// Validate supplied data
_carouselValidator.ValidateSlide(slide);
// Determine whether or not there are uncommitted slide images
bool uncommittedSlideImages = true;
if (carouselSlideId > 0)
{
ICarouselService carouselService = (ICarouselService)_elementFactory.GetElementService(FormId);
CarouselSlide currentSlide = carouselService.ReadSlide(tenantId, elementId, carouselSlideId);
uncommittedSlideImages = currentSlide.ImageUploadId != slide.ImageUploadId;
}
// Get slide view model and return it's JSON representation as form result status
CarouselSlideViewModel slideViewModel = GetSlideViewModel(slide, uncommittedSlideImages);
return(JsonConvert.SerializeObject(slideViewModel));
}
public void Update(IElementSettings settings, IUnitOfWork unitOfWork = null)
{
// If we don't have a unit of work in place, create one now so that we can rollback all changes in case of failure
IUnitOfWork localUnitOfWork = unitOfWork == null?_unitOfWorkFactory.CreateUnitOfWork() : null;
// Begin work
try
{
// Validate slides
CarouselSettings carouselSettings = (CarouselSettings)settings;
foreach (CarouselSlide slide in carouselSettings.Slides)
{
_carouselValidator.ValidateSlide(slide);
}
// Get current carousel settings
CarouselSettings currentCarouselSettings = (CarouselSettings)New(settings.TenantId);
currentCarouselSettings.ElementId = settings.ElementId;
_carouselRepository.Read(currentCarouselSettings, unitOfWork ?? localUnitOfWork);
// Get slides to delete (i.e. slides that were in current settings, but not in the new settings)
// Get slides with updated images
List <CarouselSlide> slidesToDelete = new List <CarouselSlide>();
List <CarouselSlide> slidesWithUpdatedImages = new List <CarouselSlide>();
List <CarouselSlide> currentSlidesWithUpdatedImages = new List <CarouselSlide>();
Dictionary <long, CarouselSlide> slidesById = carouselSettings.Slides.Where(s => s.CarouselSlideId != 0).GroupBy(s => s.CarouselSlideId).ToDictionary(u => u.Key, u => u.First());
foreach (CarouselSlide currentSlide in currentCarouselSettings.Slides)
{
if (!slidesById.ContainsKey(currentSlide.CarouselSlideId))
{
slidesToDelete.Add(currentSlide);
}
else
{
CarouselSlide slide = slidesById[currentSlide.CarouselSlideId];
if (slide.ImageUploadId != currentSlide.ImageUploadId)
{
slidesWithUpdatedImages.Add(slide);
currentSlidesWithUpdatedImages.Add(currentSlide);
}
}
}
// Get new slides
List <CarouselSlide> slidesToCreate = carouselSettings.Slides.Where(s => s.CarouselSlideId == 0).ToList();
// Commit new images
slidesToCreate.AddRange(slidesWithUpdatedImages);
foreach (CarouselSlide slide in slidesToCreate)
{
_uploadService.Commit(slide.ImageTenantId, slide.ThumbnailImageUploadId, GetCarouselSlideStorageHierarchy(slide.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Commit(slide.ImageTenantId, slide.PreviewImageUploadId, GetCarouselSlideStorageHierarchy(slide.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Commit(slide.ImageTenantId, slide.ImageUploadId, GetCarouselSlideStorageHierarchy(slide.ElementId), unitOfWork ?? localUnitOfWork);
}
// Update database
_carouselRepository.Update((CarouselSettings)settings, unitOfWork ?? localUnitOfWork);
// Delete uploads that are no longer required
slidesToDelete.AddRange(currentSlidesWithUpdatedImages);
foreach (CarouselSlide currentSlide in slidesToDelete)
{
_uploadService.Delete(currentSlide.ImageTenantId, currentSlide.ThumbnailImageUploadId, GetCarouselSlideStorageHierarchy(currentSlide.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Delete(currentSlide.ImageTenantId, currentSlide.PreviewImageUploadId, GetCarouselSlideStorageHierarchy(currentSlide.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Delete(currentSlide.ImageTenantId, currentSlide.ImageUploadId, GetCarouselSlideStorageHierarchy(currentSlide.ElementId), unitOfWork ?? localUnitOfWork);
}
// Commit work if local unit of work in place and return result
if (localUnitOfWork != null)
{
localUnitOfWork.Commit();
}
}
catch (ValidationErrorException)
{
if (localUnitOfWork != null)
{
localUnitOfWork.Rollback();
}
throw;
}
catch (Exception ex)
{
if (localUnitOfWork != null)
{
localUnitOfWork.Rollback();
}
throw new ValidationErrorException(new ValidationError(null, ApplicationResource.UnexpectedErrorMessage), ex);
}
finally
{
if (localUnitOfWork != null)
{
localUnitOfWork.Dispose();
}
}
}