my $ret =
$self->input_tag($name, (ref $value && $value->can('id') ? $value->id : ''), class => "@classes", type => 'hidden', id => $id) .
- join('', map { $params{$_} ? $self->input_tag("", delete $params{$_}, id => "${id}_${_}", type => 'hidden') : '' } qw(part_type unit convertible_unit)) .
+ join('', map { $params{$_} ? $self->input_tag("", delete $params{$_}, id => "${id}_${_}", type => 'hidden') : '' } qw(part_type classification_id unit convertible_unit)) .
$self->input_tag("", ref $value ? $value->displayable_name : '', id => "${id}_name", %params);
$::request->layout->add_javascripts('autocomplete_part.js');