validate_collection_association

# File activerecord/lib/active_record/autosave_association.rb, line 249
    def validate_collection_association(reflection)
      if association = association_instance_get(reflection.name)
        if records = associated_records_to_validate_or_save(association, new_record?, reflection.options[:autosave])
          records.each { |record| association_valid?(reflection, record) }
        end
      end
    end