private const string BaseDirectory = "/Views/ContentParts/PartTemplates/";     // TODO get rid of magic value - must match Controller

        public ContentVirtualPathProvider(IPersister persister, ContentPartTemplateProvider partTemplateProvider)
        {
            _persister            = persister;
            _partTemplateProvider = partTemplateProvider;
        }
	    private const string BaseDirectory = "/Views/ContentParts/PartTemplates/"; // TODO get rid of magic value - must match Controller

        public ContentVirtualPathProvider(IPersister persister, ContentPartTemplateProvider partTemplateProvider)
        {
            _persister = persister;
            _partTemplateProvider = partTemplateProvider;
        }