1 files changed, 124 insertions, 0 deletions
diff --git a/lib/Reaction/UI/ViewPort/Role/FieldArgs.pm b/lib/Reaction/UI/ViewPort/Role/FieldArgs.pm
new file mode 100644
index 0000000..0a2aa51
--- /dev/null
+++ b/lib/Reaction/UI/ViewPort/Role/FieldArgs.pm
@@ -0,0 +1,124 @@
+package Reaction::UI::ViewPort::Role::FieldArgs;
+
+use Reaction::Role;
+use namespace::clean -except => [ qw(meta) ];
+
+has field_order => ( is => 'ro', isa => 'ArrayRef', lazy_build => 1);
+has excluded_fields => ( is => 'ro', isa => 'ArrayRef', lazy_build => 1);
+has included_fields => ( is => 'ro', isa => 'ArrayRef', lazy_build => 1);
+has computed_field_order => (is => 'ro', isa => 'ArrayRef', lazy_build => 1);
+
+has _raw_field_labels => (
+  is => 'rw',
+  isa => 'HashRef',
+  init_arg => 'field_labels',
+  default => sub { {} },
+);
+
+has field_labels => (
+  is => 'ro',
+  isa => 'HashRef',
+  lazy_build => 1,
+  init_arg => undef,
+);
+
+sub _build_field_labels {
+  my $self = shift;
+  my %labels = %{$self->_raw_field_labels};
+  for my $field ( @{$self->computed_field_order}) {
+    next if defined $labels{$field};
+    $labels{$field} = join(' ', map{ ucfirst } split('_', $field));
+  }
+  return \%labels;
+}
+
+sub _build_field_order { [] }
+
+sub _build_excluded_fields { [] }
+
+sub _build_included_fields { [] }
+
+#this is a total clusterfuck and it sucks we should just eliminate it and have
+# the grid members not render ArrayRef or Collection fields
+sub _build_computed_field_order {
+  my ($self) = @_;
+  my %excluded = map { $_ => undef } @{ $self->excluded_fields };
+  my %included = map { $_ => undef } @{ $self->included_fields };
+  #treat _$field_name as private and exclude fields with no reader
+  my @names = grep { $_ !~ /^_/ &&  (!%included || exists( $included{$_}) )
+    && !exists($excluded{$_})} map { $_->name }
+    grep {
+      !($_->has_type_constraint &&
+        ($_->type_constraint->is_a_type_of('ArrayRef') ||
+         eval {$_->type_constraint->name->isa('Reaction::InterfaceModel::Collection')} ||
+         eval { $_->_isa_metadata->isa('Reaction::InterfaceModel::Collection') }
+        )
+       )  }
+      grep { defined $_->get_read_method }
+        $self->current_collection->member_type->parameter_attributes;
+
+  return $self->sort_by_spec($self->field_order, \@names);
+}
+
+around _build_members => sub {
+  my $orig = shift;
+  my $self = shift;
+  $self->member_args->{computed_field_order} ||= $self->computed_field_order;
+  my $members = $self->$orig(@_);
+
+  return $members;
+};
+
+1;
+
+__END__;
+
+=head1 NAME
+
+Reaction::UI::ViewPort::Role::FieldOptions
+
+=head1 DESCRIPTION
+
+=head1 ATTRIBUTES
+
+=head2 field_order
+
+=head2 excluded_fields
+
+List of field names to exclude.
+
+=head2 included_fields
+
+List of field names to include. If both C<included_fields> and
+C<excluded_fields> are specified the result is those fields which
+are in C<included_fields> and not in C<excluded_fields>.
+
+=head2 included_fields
+
+List of field names to include. If both C<included_fields> and
+C<excluded_fields> are specified the result is those fields which
+are in C<included_fields> and not in C<excluded_fields>.
+
+=head2 field_labels
+
+=head2 computed_field_order
+
+=head1 INTERNAL METHODS
+
+These methods, although stable, are subject to change without notice. These are meant
+to be used only by developers. End users should refrain from using these methods to
+avoid potential breakages.
+
+=head1 SEE ALSO
+
+L<Reaction::UI::ViewPort::Collection>
+
+=head1 AUTHORS
+
+See L<Reaction::Class> for authors.
+
+=head1 LICENSE
+
+See L<Reaction::Class> for the license.
+
+=cut