##acts_as_xapian tip - using with association proxies

##Named scope
class Lesson < ActiveRecord::Base
    named_scope :find_with_xapian, lambda { |*args| {:conditions => ["lessons.id in (?)", ActsAsXapian::Search.new([Lesson], args.to_s).results.collect{|x| x[:model].id}]}}
end

##But if we do this instead, we can now do association proxies
class Lesson < ActiveRecord::Base
    def self.find_with_xapian(search_term, options={})
      ActsAsXapian::Search.new([self], search_term, options).results.collect{|x| x[:model]}.compact
    end
end

current_user.lessons.find_with_xapian "something"

##That would automatically scope and return lessons that belong to the current user only. Awesome!

###
#=> Overbryd
# Without compact this leaves sometimes some nil elements in the array, compact returns the array without nil elements.