Programmatically Adding Image Content in Generic Setup

Have you been sitting around for the last hour thinking "man, it would sure be great if I could add Images to my site on install but I just can't find a code example"? I know I was. Consider it documented!

There will be a slideshow in the Plone Conference 2011 website (it's coming soon I swear!) that we wanted to work on install since it was 1. on the front page and 2. a PITA to set up every time. The code below gives "a" way to do this, although it could be taken to a much more abstracted level (what couldn't?!?).

This assumes that there is a folder called images in your generic setup profile folder, which is likely to be in ... > profiles > default > images. The nice thing is that it doesn't rely on the magical, mystical .content jiggery. I won't rehash the code comments, but if you are using the slideshow product then maybe this cantation is for you!

	import StringIO
	import transaction
	def setupVarious(context):
	if context.readDataFile('ploneconf2011.theme_default.txt') is None:
	return
	# set the default front page property of layout to be a new view
	site = context.getSite()
	front = site.get('front-page')
	if front:
	front.layout = 'home_page_view'
	# set the initial images
	slide = site.get('slideshow-folder')
	if slide:
	# only add if this is a first time setup
	if not slide.getChildNodes():
	# XXX: this would be fun if it was reading a metadata file instead :)
	# dreams for another day I guess...
	addMe = [
	("ss-sprint.jpg", "Contribute Back", "Sprint | November 7-8"),
	("ss-conf.jpg", "Catch Up", "Conference | November 3-6"),
	("ss-training.jpg", "Get Learned", "Training | November 1-2"),
	]
	for (location, title, description) in addMe:
	imageId = location.split(".")[0]
	imageFile = context.openDataFile(location, 'images')
	if imageFile:
	transaction.begin() # in case this list is big
	slide.invokeFactory(id=imageId, type_name='Image')
	newImage = slide.get(imageId)
	newImage.setImage(imageFile.read())
	imageFile.close()
	newImage.setTitle(title)
	newImage.setDescription(description)
	# required for title/desc to be in catalog
	newImage.reindexObject()
	transaction.commit()

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