Director.lua snippet

Director.lua

function DirectorAPI.processExport( functionContext, exportContext )
	prefs.useMetaData = exportContext.propertyTable.useMetaData
	prefs.openDirector = exportContext.propertyTable.openDirector
	
	local exportSession = exportContext.exportSession
	local nPhotos = exportSession:countRenditions()
	local album_type = exportContext.propertyTable.album_type
	local new_album_name = exportContext.propertyTable.new_album_name
	local album_id = exportContext.propertyTable.selected_album_id
	local progressScope = exportContext:configureProgress{
						title = nPhotos > 1
									and string.format("Uploading %d photos to %s", nPhotos, prefs.directorURL)
									or "Uploading one photo to " .. prefs.directorURL,
					}
	
	if album_type == 2 then
		album_id = DirectorAPI.createAlbum(new_album_name)
	end
	
	prefs.lastAlbum = album_id				
	
	for i, rendition in exportContext:renditions() do 
		-- Wait until Lightroom has finished rendering this photo. 
		local success, pathOrMessage = rendition:waitForRender() 
		local photo = rendition.photo
		
		if progressScope:isCanceled() then break end
		
		-- Do something with the rendered photo. 
		if success then 
			local title, caption, keywords
			if exportContext.propertyTable.useMetaData then
				photo.catalog:withReadAccessDo( function()
					title = photo:getFormattedMetadata 'title'
					caption = photo:getFormattedMetadata 'caption'
					keywords = photo:getFormattedMetadata 'keywordTags'
				end )
			else
				title, caption, keywords = nil
			end
			
			DirectorAPI.uploadPhoto{ filePath = pathOrMessage, album = album_id, title = title, caption = caption, tags = keywords }
		else 
			-- when success if false, pathOrMessage contains the error message 
			error( pathOrMessage ) 
		end 
	end
	
	if exportContext.propertyTable.openDirector then
		to_append = ''
		if DirectorAPI.isLocal() then
			to_append = '/index.php?'
		end
		local content_tab = 'http://' .. prefs.directorURL .. to_append .. '/albums/edit/' .. album_id .. '/content'
		LrHttp.openUrlInBrowser( content_tab )
	end
end