On Mon, Sep 11, 2006 at 10:11:22PM +0200, Ian Zabel wrote: > Thanks for the update, Jens! > > How can I get more_like_this to work? Do I have to have my fields > stored? > > I'm getting this error when I try to run it with fields stored or not: > > >> t = Topic.find(:first) > >> t.more_like_this > NoMethodError: You have a nil object when you didn't expect it! > You might have expected an instance of Array. > The error occured while evaluating nil.each
oh, you'll have to specify an array of the fields you want to use for the similarity search: t.more_like_this(:fields => [ :content, :title ]) The query that is constructed to find similar topics will then be built from relevant terms found in those fields of t. more_like_this doesn't need stored field contents, it even can work without term vectors in the index, In this case it takes the contents from the db and builds the term information on the fly. ferret's term vectors will be much faster than that, of course. Stored Term vectors are the default with aaf, so no need to worry about that. cheers, Jens -- webit! Gesellschaft für neue Medien mbH www.webit.de Dipl.-Wirtschaftsingenieur Jens Krämer [EMAIL PROTECTED] Schnorrstraße 76 Tel +49 351 46766 0 D-01069 Dresden Fax +49 351 46766 66 _______________________________________________ Ferret-talk mailing list [email protected] http://rubyforge.org/mailman/listinfo/ferret-talk
