Rails - Sep 2008 - Group By / Filters with UltraSphinx

Hi,

I use last version of UltraSphinx but filters dont work...

In my model :
is_indexed  :fields => [''content'',
''titre'', ''created_at'', {:field =>
''lang'', :facet => true, :as =>
''lang''}],
                :delta => true
or
is_indexed  :fields => [''content'',
''titre'', ''created_at'',
''lang''],
                :delta => true

In my controller :
@search = Ultrasphinx::Search.new(:query =>
get_query_by_subject(@subject.id),
                                        :sort_mode =>
''descending'',
                                        :sort_by =>
''created_at'',
                                        :weights =>
{''titre'' => 5.0,
''content'' => 2.0},
                                        :page => params[:page] || 1,
                                        :filters => {"lang" =>
"fr"})

Result :
UsageError : field "lang" is invalid

:conditions => {"lang" => "fr"} doesnt work too.

I want to filter my results (lang, country, date, etc...) and group by
title. Ultrasphinx doc doesnt speak about that. Just query work ^^

And I dont really understand what are "facets". Can you help me
please ?

Thank you,
Florian

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