construct_conditions

# File activerecord/lib/active_record/associations/through_association_scope.rb, line 21
      def construct_conditions
        table_name = @reflection.through_reflection.quoted_table_name
        conditions = construct_quoted_owner_attributes(@reflection.through_reflection).map do |attr, value|
          "#{table_name}.#{attr} = #{value}"
        end
        conditions << sql_conditions if sql_conditions
        "(" + conditions.join(') AND (') + ")"
      end