ag_preferences.pl

 cliopatria:user_preference_db(?Property:atom, ?Value:rdf_object) is nondet[multifile]

Query properties for the current user/session. This mechanism allows code to access information about the user/session without committing to a particular implementation. The predicate and values are compatible with RDF to allow implementing the user database in RDF, typically using the OpenID as subject.

 cliopatria:user_preference_default(?Property:atom, ?Value:rdf_object) is nondet[multifile]

Provides defaults for the user_preference/2.

See also

- user_preference_db/2