Convert 'favorite' to AVU

[michael-conway]

Currently Metalnx makes user favorites (stars) a database entry. This proposal is to make a favorite an AVU

• A favorite on a file or collection is a standard tag that includes the user who favorites the item
• The favorites database can be removed from irods-ext
• A conversion migration can be added to support this transition

This benefits by removing a source of drift and inaccuracy and makes favorites more generally useful among clients

[trel]

Need to define the specifics of A, V, and U.

Cloud browser currently uses...

A “Starred from Cloud Browser”
V <username>
U “iRODSUserTagging:Star”

Note the username does not use the “#Zone” notation, so potentially could create a namespace collision when used via Federation. I’d propose including the “#Zone”.

[michael-conway]

Yes, MetaLnx should operate across federations. This will be eventually very important so that virtual collections can be formed across federation boundaries!