+package SL::Controller::PartsGroup;
+
+use strict;
+
+use parent qw(SL::Controller::Base);
+
+use SL::Helper::Flash;
+use SL::Locale::String;
+use SL::DB::Default;
+use SL::DB::Manager::PartsGroup;
+
+use Rose::Object::MakeMethods::Generic (
+  scalar                  => [ qw(partsgroup) ],
+  'scalar --get_set_init' => [ qw(all_partsgroups) ],
+);
+
+__PACKAGE__->run_before('check_auth');
+__PACKAGE__->run_before('load_partsgroup', only => [ qw(edit update delete) ]);
+
+#
+# actions
+#
+
+sub action_list {
+  my ($self) = @_;
+
+  $self->render('partsgroup/list',
+                title   => t8('Partsgroups'),
+               );
+}
+
+sub action_new {
+  my ($self) = @_;
+
+  $self->partsgroup( SL::DB::PartsGroup->new );
+  $self->render('partsgroup/form',
+                 title => t8('Add partsgroup'),
+               );
+}
+
+sub action_edit {
+  my ($self) = @_;
+
+  $self->render('partsgroup/form',
+                 title   => t8('Edit partsgroup'),
+                );
+}
+
+sub action_create {
+  my ($self) = @_;
+
+  $self->partsgroup( SL::DB::PartsGroup->new );
+  $self->create_or_update;
+}
+
+sub action_update {
+  my ($self) = @_;
+  $self->create_or_update;
+}
+
+sub action_delete {
+  my ($self) = @_;
+
+  if ( !$self->partsgroup->orphaned ) {
+    flash_later('error', $::locale->text('The partsgroup has been used and cannot be deleted.'));
+  } elsif ( eval { $self->partsgroup->delete; 1; } ) {
+    flash_later('info',  $::locale->text('The partsgroup has been deleted.'));
+  } else {
+    flash_later('error', $::locale->text('The partsgroup has been used and cannot be deleted.'));
+  };
+  $self->redirect_to(action => 'list');
+}
+
+sub action_reorder {
+  my ($self) = @_;
+
+  SL::DB::PartsGroup->reorder_list(@{ $::form->{partsgroup_id} || [] });
+  $self->render(\'', { type => 'json' });
+}
+
+#
+# filters
+#
+
+sub check_auth {
+  $::auth->assert('config');
+}
+
+sub load_partsgroup {
+  my ($self) = @_;
+
+  $self->partsgroup( SL::DB::PartsGroup->new(id => $::form->{id})->load );
+}
+
+sub init_all_partsgroups { SL::DB::Manager::PartsGroup->get_all_sorted }
+
+#
+# helpers
+#
+
+sub create_or_update {
+  my ($self) = @_;
+  my $is_new = !$self->partsgroup->id;
+
+  my $params = delete($::form->{partsgroup}) || { };
+
+  $self->partsgroup->assign_attributes(%{ $params });
+
+  my @errors = $self->partsgroup->validate;
+
+  if (@errors) {
+    flash('error', @errors);
+    $self->render('partsgroup/form',
+                   title => $is_new ? t8('Add partsgroup') : t8('Edit partsgroup'),
+                 );
+    return;
+  }
+
+  $self->partsgroup->save;
+
+  flash_later('info', $is_new ? t8('The partsgroup has been created.') : t8('The partsgroup has been saved.'));
+  $self->redirect_to(action => 'list');
+}
+
+1;
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+SL::Controller::PartsGroup - CRUD controller for partsgroups
+
+=head1 SYNOPSIS
+
+A new controller to create / edit / delete partsgroups.
+
+Partsgroups can only be deleted if they haven't been used anywhere.
+
+=head1 OBSOLETE PARTSGROUPS
+
+A partsgroup can be deleted if it hasn't been used anywhere / is orphaned.
+
+A partsgroup can be set to obsolete, which means new items can't be assigned
+that partsgroup, but old items with that partsgroup can keep it. And you can
+also still filter for these obsolete partsgroups in reports.
+
+=head1 ISSUES
+
+Unlike the old version (pe.pl/PE.pm), there is no way to filter/search the
+partsgroups in the overview page, it always shows the complete (ordered) list,
+ordered by sortkey.
+
+=head1 AUTHOR
+
+G. Richardson E<lt>grichardson@kivitendo-premium.deE<gt>
+
+=cut