public ImageUploadIds PrepareImages(long tenantId, CreateUploadModel model, 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
{
// Check that website allows avatars and that uploaded content is valid image
AuthenticationValidateResult result = _authenticationValidator.ValidatePrepareImages(tenantId, model);
// Create thumbnail model
ResizeInfo thumbnailResizeInfo = new ResizeInfo
{
Width = result.Web.UserThumbnailImageWidth.Value,
Height = result.Web.UserThumbnailImageHeight.Value,
ResizeMode = result.Web.UserThumbnailImageResizeMode.Value
};
byte[] thumbnailContent = _imageAnalysisService.ResizeImage(model.Content, thumbnailResizeInfo);
CreateUploadModel thumbnailModel = new CreateUploadModel
{
Content = thumbnailContent,
ContentType = model.ContentType,
Name = model.Name,
TenantId = model.TenantId
};
// Create preview model
ResizeInfo previewResizeInfo = new ResizeInfo
{
Width = result.Web.UserPreviewImageWidth.Value,
Height = result.Web.UserPreviewImageHeight.Value,
ResizeMode = result.Web.UserPreviewImageResizeMode.Value
};
byte[] previewContent = _imageAnalysisService.ResizeImage(model.Content, previewResizeInfo);
CreateUploadModel previewModel = new CreateUploadModel
{
Content = previewContent,
ContentType = model.ContentType,
Name = model.Name,
TenantId = model.TenantId
};
// Create uploads for thumbnail, preview and original image
long thumbnailImageUploadId = _uploadService.Create(thumbnailModel, unitOfWork ?? localUnitOfWork);
long previewImageUploadId = _uploadService.Create(previewModel, unitOfWork ?? localUnitOfWork);
long imageUploadId = _uploadService.Create(model, unitOfWork ?? localUnitOfWork);
// Commit work if local unit of work in place and return result
if (localUnitOfWork != null)
{
localUnitOfWork.Commit();
}
return(new ImageUploadIds {
ThumbnailImageUploadId = thumbnailImageUploadId, PreviewImageUploadId = previewImageUploadId, ImageUploadId = imageUploadId
});
}
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();
}
}
}
