Hi, using elephant with a berkeley backend, how should I go about modelling tag cloud like functionality?
If I have a number of persistent classes, f.ex. Things and Items and I wish to be able to tag each Thing and each Item with one or more tags (let's use keywords f.ex.) The functionality I want is to be able to efficiently: - retrieve all Things (or Items ) tagged with any of a given set of tags/keyword as in (give-me-all-tagged 'Thing :any-of '(:foo :bar :baz)) - retrive all Things (or Items) tagged with all of a given set of tags, as in (give-my-all-tagged 'Thing :all-of '(:foo :baz)) For now I've been using b-trees with the tags as keys and done some set logic in code on top of that, but not sure how that'll work with large datasets (thousands of Things in existence). Any suggestions? Regards, Aslak
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