Empty Collections in Jupiter

empty_collections.rb

empty_collections = Collection.find_each.filter {|collection| collection.member_objects.size == 0 }
CSV.open('empty_collections.csv', 'wb') do |csv|
  csv << ['Community', 'Collection', 'url']
  empty_collections.each do |collection|
    community_title = Community.find(collection.community_id)
    url = Rails.application.routes.url_helpers.community_collection_url(collection.community_id, collection.id)
    csv << [community_title, collection.title, url]
  end
end