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Auto-generating ids from titles
It's easy to have AT automatically generate an id from an object's title
When creating a new object the auto-generated ids are NOT something you want to appear in a url. Many times you want the id to be a normalized version of the title. For example, if a book title is "Songs of the Soul", you want the id to be "songs-of-the-soul".
Fortunately the AT authors realized this and made it easy to do beginning with AT 1.3.4. You only need one line of code in your content type class definition:
class vsLibraryBook(BaseFolder):
_at_rename_after_creation = True
That's all there is to it.