Add tags to ferret index

Sometimes you want to add some related information to a model. It is for example a good idea to add authors name to the Ferret document which indexes a book.

To achieve this, you only have to declare a new method in your model which return the data you want to index. Then you need to add this method to the acts_as_ferret field arguments. Let’s see an exemple :

Class Book < ActiveRecord::Base

  acts_as_taggable :authors

  acts_as_ferret :field=>[:title, :description, :authors_for_ferret]


  def authors_for_ferret

    author_names.join(' ')

  end

end

Class Author < ActiveRecord::Base

end

Now you can make full text search on your library with author included.