my %sections_by_id = map { ($_->{id} => $_) } @{ $sections };
$sections_by_id{ $_->{id} }->update_attributes(order_part_id => $_->{order_part_id}) for @{ $section_attrs };
my %sections_by_id = map { ($_->{id} => $_) } @{ $sections };
$sections_by_id{ $_->{id} }->update_attributes(order_part_id => $_->{order_part_id}) for @{ $section_attrs };