One of our requirement is that if a url content item is deleted, all the related content items to whose slots this url content item is added to, should also be deleted.
The way I was thinking to implement is to write an extension. Couple of issues I am running into:
a). Can we write an extension that is invoked when the action on the associated item is purge(delete)? If so, is it different from the post process?
b). Is there any API to purge content items?