Orphaned Tags

[steverecio]

I've noticed orphaned tags starting to accumulate when all their references are deleted. Would it make sense to auto-delete tags that aren't attached to anything?

[rtpg]

It might make sense to have (for example) a management task that does this. Though To be honest this is very dependent on the use case (for example you might set up your tags, and for now there are no usages but you'll want it later. Kinda like labels on github issues!)

Kind of a hard thing to solve in a non-ad-hoc way, so this might be a "Write up something for the FAQ" thing

[rtpg]

#111 is related

[chgad]

How about a keyword argument in the TaggableManager for instance delete_orphans=False, which is handed over to the through-model that actually handles the deletion?

This way we can define a standard method to delete orphans or by using a custom through model the user can even override this mention.

Another idea would be to hand a deletion_function=None to the TaggableManager which registers the function in place for the post_delete signal (inspired by #111).

I guess my first idea is a lot cleaner than the second one...