private string PostPhotoForm(Form form, long tenantId, long pageId, long elementId)
{
// Get album photo details
long albumPhotoId = Convert.ToInt64(form.Data);
string uploadIds = ((UploadField)form.Fields["upload"]).Value;
AlbumPhoto photo = new AlbumPhoto {
TenantId = tenantId,
ElementId = elementId,
AlbumPhotoId = albumPhotoId,
Name = ((TextField)form.Fields["name"]).Value,
Description = ((MultiLineTextField)form.Fields["description"]).Value
};
if (!string.IsNullOrWhiteSpace(uploadIds))
{
string[] uploadParts = uploadIds.Split('|');
photo.ImageTenantId = tenantId;
photo.ThumbnailImageUploadId = Convert.ToInt64(uploadParts[0]);
photo.PreviewImageUploadId = Convert.ToInt64(uploadParts[1]);
photo.ImageUploadId = Convert.ToInt64(uploadParts[2]);
}
// Validate supplied data
_albumValidator.ValidatePhoto(photo);
// Determine whether or not there are uncommitted photo images
bool uncommittedPhotoImages = true;
if (albumPhotoId > 0)
{
IAlbumService albumService = (IAlbumService)_elementFactory.GetElementService(FormId);
AlbumPhoto currentPhoto = albumService.ReadPhoto(tenantId, elementId, albumPhotoId);
uncommittedPhotoImages = currentPhoto.ImageUploadId != photo.ImageUploadId;
}
// Get photo view model and return it's JSON representation as form result status
AlbumPhotoViewModel photoViewModel = GetPhotoViewModel(photo, uncommittedPhotoImages);
return(JsonConvert.SerializeObject(photoViewModel));
}
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
AlbumSettings albumSettings = (AlbumSettings)settings;
foreach (AlbumPhoto photo in albumSettings.Photos)
{
_albumValidator.ValidatePhoto(photo);
}
// Get current album settings
AlbumSettings currentAlbumSettings = (AlbumSettings)New(settings.TenantId);
currentAlbumSettings.ElementId = settings.ElementId;
_albumRepository.Read(currentAlbumSettings, unitOfWork ?? localUnitOfWork);
// Get photos to delete (i.e. photos that were in current settings, but not in the new settings)
// Get photos with updated images
List <AlbumPhoto> photosToDelete = new List <AlbumPhoto>();
List <AlbumPhoto> photosWithUpdatedImages = new List <AlbumPhoto>();
List <AlbumPhoto> currentPhotosWithUpdatedImages = new List <AlbumPhoto>();
Dictionary <long, AlbumPhoto> photosById = albumSettings.Photos.Where(p => p.AlbumPhotoId != 0).GroupBy(s => s.AlbumPhotoId).ToDictionary(u => u.Key, u => u.First());
foreach (AlbumPhoto currentPhoto in currentAlbumSettings.Photos)
{
if (!photosById.ContainsKey(currentPhoto.AlbumPhotoId))
{
photosToDelete.Add(currentPhoto);
}
else
{
AlbumPhoto photo = photosById[currentPhoto.AlbumPhotoId];
if (photo.ImageUploadId != currentPhoto.ImageUploadId)
{
photosWithUpdatedImages.Add(photo);
currentPhotosWithUpdatedImages.Add(currentPhoto);
}
}
}
// Get new photos
List <AlbumPhoto> photosToCreate = albumSettings.Photos.Where(s => s.AlbumPhotoId == 0).ToList();
// Commit new images
photosToCreate.AddRange(photosWithUpdatedImages);
foreach (AlbumPhoto photo in photosToCreate)
{
_uploadService.Commit(photo.ImageTenantId, photo.ThumbnailImageUploadId, GetAlbumPhotoStorageHierarchy(photo.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Commit(photo.ImageTenantId, photo.PreviewImageUploadId, GetAlbumPhotoStorageHierarchy(photo.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Commit(photo.ImageTenantId, photo.ImageUploadId, GetAlbumPhotoStorageHierarchy(photo.ElementId), unitOfWork ?? localUnitOfWork);
}
// Update database
_albumRepository.Update((AlbumSettings)settings, unitOfWork ?? localUnitOfWork);
// Delete uploads that are no longer required
photosToDelete.AddRange(currentPhotosWithUpdatedImages);
foreach (AlbumPhoto currentPhoto in photosToDelete)
{
_uploadService.Delete(currentPhoto.ImageTenantId, currentPhoto.ThumbnailImageUploadId, GetAlbumPhotoStorageHierarchy(currentPhoto.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Delete(currentPhoto.ImageTenantId, currentPhoto.PreviewImageUploadId, GetAlbumPhotoStorageHierarchy(currentPhoto.ElementId), unitOfWork ?? localUnitOfWork);
_uploadService.Delete(currentPhoto.ImageTenantId, currentPhoto.ImageUploadId, GetAlbumPhotoStorageHierarchy(currentPhoto.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();
}
}
}