public void Dispose()
{
if (_cachedEntity != null && _mediaStream != null)
{
// Get the new entity from the Entity Framework object state manager.
ObjectStateEntry entry = this.context.ObjectStateManager.GetObjectStateEntry(_cachedEntity);
if (entry.State == EntityState.Unchanged)
{
{
var ctx = new DiscCtx(ConfigManager.ConnStr);
ctx.Attach(_cachedEntity);
_cachedEntity.MediaData.Data = _mediaStream.ToArray();
ctx.SaveChanges();
}
}
else
{
// A problem must have occurred when saving the entity to the database,
// so we should delete the entity
var mediaData = _cachedEntity.MediaData;
_cachedEntity.MediaData = null;
var ctx = new DiscCtx(ConfigManager.ConnStr);
if (mediaData != null)
{
ctx.Attach(mediaData);
ctx.DeleteObject(mediaData);
}
ctx.Attach(_cachedEntity);
ctx.DeleteObject(_cachedEntity);
throw new DataServiceException("An error occurred. The media resource could not be saved.");
}
}
}