/// <summary>
/// Determines if the image already exists.
/// </summary>
/// <param name="imageId">The image identifier.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
public bool DoesImageFileExist(long imageId)
{
var imageFile = Entity.Get <ImageFileType>(imageId);
if (imageFile == null || string.IsNullOrWhiteSpace(imageFile.FileDataHash))
{
return(false);
}
return(FileRepositoryHelper.DoesFileExist(Factory.BinaryFileRepository, imageFile.FileDataHash));
}
public bool OnBeforeSave(IEnumerable <IEntity> entities, IDictionary <string, object> state)
{
foreach (FileType fileType in from entity in entities where entity.Is <FileType>() select entity.AsWritable <FileType>())
{
string dataHash = fileType.FileDataHash;
if (string.IsNullOrWhiteSpace(dataHash))
{
continue;
}
bool isImage = fileType.Is <ImageFileType>();
bool isDocument = fileType.Is <Document>() || fileType.Is <DocumentRevision>();
// Check to see if we have a relationship to a document type and if so then perform the migration into the
// indexed table otherwise insert the data into the non-indexed table.
IFileRepository fileRepository = isDocument ? Factory.DocumentFileRepository : Factory.BinaryFileRepository;
if (FileRepositoryHelper.DoesFileExist(fileRepository, dataHash))
{
// File aleady exists
continue;
}
if (!FileRepositoryHelper.DoesFileExist(Factory.TemporaryFileRepository, dataHash))
{
// File was not found
continue;
}
StreamProperties streamProperties;
string token;
try
{
using (var stream = Factory.TemporaryFileRepository.Get(dataHash))
{
// Copy the file to its correct store
streamProperties = GetPropertiesFromStream(stream, isImage);
stream.Position = 0;
token = fileRepository.Put(stream);
}
}
catch (FileNotFoundException)
{
// File was not found
continue;
}
Factory.TemporaryFileRepository.Delete(dataHash);
if (isImage)
{
// Set image properties
fileType.SetField(ImageFileType.ImageHeight_Field, streamProperties.ImageHeight);
fileType.SetField(ImageFileType.ImageWidth_Field, streamProperties.ImageWidth);
}
else
{
if (isDocument)
{
Document document = fileType.As <Document>();
// Verify that we have the correct çurrent revision', as the current revision should have been
// given the same temporary dataHash as the document. (This is done in DocumentEventTarget)
if (document?.CurrentDocumentRevision?.FileDataHash == dataHash)
{
document.CurrentDocumentRevision.FileDataHash = token;
}
}
}
// Apply the new file hash.
fileType.FileDataHash = token;
fileType.Size = Convert.ToInt32(streamProperties.FileSize);
}
return(false);
}
