build_join_query

# File activerecord/lib/active_record/relation/query_methods.rb, line 1006
      def build_join_query(manager, buckets, join_type)
        buckets.default = []

        association_joins         = buckets[:association_join]
        stashed_association_joins = buckets[:stashed_join]
        join_nodes                = buckets[:join_node].uniq
        string_joins              = buckets[:string_join].map(&:strip).uniq

        join_list = join_nodes + convert_join_strings_to_ast(manager, string_joins)

        join_dependency = ActiveRecord::Associations::JoinDependency.new(
          @klass,
          association_joins,
          join_list
        )

        join_infos = join_dependency.join_constraints stashed_association_joins, join_type

        join_infos.each do |info|
          info.joins.each { |join| manager.from(join) }
          manager.bind_values.concat info.binds
        end

        manager.join_sources.concat(join_list)

        manager
      end