public async Task <BlobContent> ReadBlobContentAsync(long tenantId, long elementId, long blobSetId, string blobLabel)
{
AlbumElementSettings settings = await _elementRepository.ReadElementSettingsAsync(tenantId, elementId);
if (settings == null)
{
return(null);
}
AlbumPhoto photo = settings.Photos.Where(p => p.BlobSetId == blobSetId).FirstOrDefault();
if (photo == null)
{
return(null);
}
long?blobId = GetBlobId(photo, blobLabel);
if (blobId == null)
{
return(null);
}
return(await _storageService.ReadBlobContentAsync(tenantId, blobId.Value, string.Format(AlbumImagePath, elementId)));
}
public async Task <IElementView <AlbumElementSettings, AlbumElementContent> > ReadElementViewAsync(long tenantId, long elementId, IPageContext context)
{
// Get element settings
AlbumElementSettings settings = await _elementRepository.ReadElementSettingsAsync(tenantId, elementId);
if (settings == null)
{
return(null);
}
// Get details of thumbnail and preview images
IEnumerable <long> thumbnailImageBlobIds = settings.Photos.Select(p => p.ThumbnailImageBlobId);
IEnumerable <long> previewImageBlobIds = settings.Photos.Select(p => p.PreviewImageBlobId);
IEnumerable <Blob> thumbnailImageBlobs = await _storageService.ListBlobsAsync(tenantId, thumbnailImageBlobIds);
IEnumerable <Blob> previewImageBlobs = await _storageService.ListBlobsAsync(tenantId, previewImageBlobIds);
IDictionary <long, BlobImage> thumbnailImageBlobsById = thumbnailImageBlobs.ToDictionary(b => b.BlobId, b => (BlobImage)b);
IDictionary <long, BlobImage> previewImageBlobsById = previewImageBlobs.ToDictionary(b => b.BlobId, b => (BlobImage)b);
// Construct list of photos for album content
IDictionary <long, AlbumContentPhoto> photos = settings
.Photos
.Where(p => thumbnailImageBlobsById.ContainsKey(p.ThumbnailImageBlobId) && previewImageBlobsById.ContainsKey(p.PreviewImageBlobId))
.Select(p => new AlbumContentPhoto
{
BlobSetId = p.BlobSetId,
ThumbnailWidth = thumbnailImageBlobsById[p.ThumbnailImageBlobId].Width,
ThumbnailHeight = thumbnailImageBlobsById[p.ThumbnailImageBlobId].Height,
PreviewWidth = previewImageBlobsById[p.PreviewImageBlobId].Width,
PreviewHeight = previewImageBlobsById[p.PreviewImageBlobId].Height
})
.ToDictionary(p => p.BlobSetId, p => p);
// Construct element content
AlbumElementContent content = new AlbumElementContent
{
Photos = photos
};
// Return element view
return(new ElementView <AlbumElementSettings, AlbumElementContent>
{
Settings = settings,
Content = content
});
}
