search for: questions_tags

I am currently using acts_as_ferret to search on a Posts table (title and content fields). These posts also have tags (with has_many :tags, :through => :questions_tags). I can''t figure out how to get acts_as_ferret to work with that relationship and allow searching of title, content, And tags at the same time (with the ability to set boost as well). Can this be done? -- Posted via http://www.ruby-forum.com/.