ProjectX Blog

Further to my first post on using acts_as_xapian, I have been trying to make xapian work with pagination and association proxies properly

class Lesson < ActiveRecord::Base
# Index user_id as a term in xapian

    belongs_to :user
    def self.find_with_xapian(search_term, options={})
      ActsAsXapian::Search.new([self], search_term, options).results.collect{|x| x[:model]}
    end
end

class User < ActiveRecord::Base
    has_many :lessons do  #Extend this association
      # Override the method in lessons
      def self.find_with_xapian(search_term, options={})
        ActsAsXapian::Search.new([proxy_reflection.klass],
          "{proxy_reflection.primary_key_name}:#{proxy_owner.id}  #{search_term}", options)
        .results.collect{|x| x[:model]}
      end
    end
end

This will ensure that current_user.locations.find_with_xapian will find the correct number of locations, enabling us to work with pagination, etc. What’s left to do is to get the Search object out so that we can get matches_estimated out. I’ll leave out for next time.

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