Rails Sunspot/Solr: Ordering on multiple-value field

问题

I'm trying to do a priority "order by" on a multiple-value field using solr - any idea how I can accomplish the below?

searchable do
  integer :skill_ids, :multiple => true
end

def self.filter_using_solr(opts={})
  Sunspot.search(JobApplication) do |s|
    opts[:order_skill_ids].each do |skill_id|
        s.order_by(:skill_ids, skill_id)
      end
    end
  end
end

I get the following exception "skill_ids cannot be used for ordering because it is a multiple-value field" - but not sure on the alternate path.

回答1:

Perhaps what you're looking for is Solr's faceted search.

There are several posts on this subject including How do I set up a facet search with a many to many relationship using Sunspot?

Naturally, the Solr docs are also useful.

来源：https://stackoverflow.com/questions/8188456/rails-sunspot-solr-ordering-on-multiple-value-field