package Reaction::UI::ViewPort::Field;
use Reaction::Class;
+use aliased 'Reaction::InterfaceModel::Object';
+use aliased 'Reaction::Meta::InterfaceModel::Object::ParameterAttribute';
+
+use namespace::clean -except => [ qw(meta) ];
+extends 'Reaction::UI::ViewPort';
+
+has value => (is => 'rw', lazy_build => 1);
+has name => (is => 'rw', isa => 'Str', lazy_build => 1);
+has label => (is => 'rw', isa => 'Str', lazy_build => 1);
+has value_string => (is => 'rw', isa => 'Str', lazy_build => 1);
+
+has model => (is => 'ro', isa => Object, required => 1);
+has attribute => (is => 'ro', isa => ParameterAttribute, required => 1);
+
+sub _build_name { shift->attribute->name };
+
+sub _build_label {
+ join(' ', map { ucfirst } split('_', shift->name));
+}
+
+sub _build_value {
+ my ($self) = @_;
+ my $reader = $self->attribute->get_read_method;
+ return $self->model->$reader;
+}
+
+sub _model_has_value {
+ my ($self) = @_;
+ my $predicate = $self->attribute->get_predicate_method;
+
+ if (!$predicate || $self->model->$predicate
+ # || ($self->attribute->is_lazy
+ # && !$self->attribute->is_lazy_fail)
+ ) {
+ # edenc -- uncommented the lazy checks above
+ # model->$predicate returns false if the value isn't set
+ # but has a lazy builder
+
+ # either model attribute has a value now or can build it
+ return 1;
+ }
+ return 0;
+}
+
+sub _build_value_string {
+ my ($self) = @_;
+ # XXX need the defined test because the IM lazy builds from
+ # the model and DBIC can have nullable fields and DBIC doesn't
+ # have a way to tell us that doesn't force value inflation (extra
+ # SELECTs for belongs_to) so basically we're screwed.
+ return ($self->_model_has_value && defined($self->_build_value)
+ ? $self->_value_string_from_value
+ : $self->_empty_string_value);
+}
+
+sub _value_string_from_value {
+ shift->value;
+}
+
+sub _empty_string_value { '' }
+
+sub value_is_required {
+ my $self = shift;
+ $self->model->attribute_is_required($self->attribute);
+}
+
+__PACKAGE__->meta->make_immutable;
-class Field is 'Reaction::UI::ViewPort', which {
-
- has name => (
- isa => 'Str', is => 'rw', required => 1
- );
-
- has action => (
- isa => 'Reaction::InterfaceModel::Action',
- is => 'ro', required => 0, predicate => 'has_action',
- );
-
- has attribute => (
- isa => 'Reaction::Meta::InterfaceModel::Action::ParameterAttribute',
- is => 'ro', predicate => 'has_attribute',
- );
-
- has value => (
- is => 'rw', lazy_build => 1, trigger_adopt('value'),
- clearer => 'clear_value',
- );
-
- has needs_sync => (
- isa => 'Int', is => 'rw', default => 0
- );
-
- has label => (isa => 'Str', is => 'rw', lazy_build => 1);
-
- has message => (
- isa => 'Str', is => 'rw', required => 1, default => sub { '' }
- );
-
- implements BUILD => as {
- my ($self) = @_;
- if (!$self->has_attribute != !$self->has_action) {
- confess "Should have both action and attribute or neither";
- }
- };
-
- implements build_label => as {
- my ($self) = @_;
- return join(' ', map { ucfirst } split('_', $self->name));
- };
-
- implements build_value => as {
- my ($self) = @_;
- if ($self->has_attribute) {
- my $reader = $self->attribute->get_read_method;
- my $predicate = $self->attribute->predicate;
- if (!$predicate || $self->action->$predicate) {
- return $self->action->$reader;
- }
- }
- return '';
- };
-
- implements adopt_value => as {
- my ($self) = @_;
- $self->needs_sync(1) if $self->has_attribute;
- };
-
- implements sync_to_action => as {
- my ($self) = @_;
- return unless $self->needs_sync && $self->has_attribute && $self->has_value;
- my $attr = $self->attribute;
- if (my $tc = $attr->type_constraint) {
- my $value = $self->value;
- if ($tc->has_coercion) {
- $value = $tc->coercion->coerce($value);
- }
- my $error = $tc->validate($self->value);
- if (defined $error) {
- $self->message($error);
- return;
- }
- }
- my $writer = $attr->get_write_method;
- confess "No writer for attribute" unless defined($writer);
- $self->action->$writer($self->value);
- $self->needs_sync(0);
- };
-
- implements sync_from_action => as {
- my ($self) = @_;
- return unless !$self->needs_sync && $self->has_attribute;
- $self->message($self->action->error_for($self->attribute)||'');
- };
-
- override accept_events => sub { ('value', super()) };
-
-};
1;
+__END__;
=head1 NAME
=head1 DESCRIPTION
-This viewport is the base class for all field types.
-
=head1 ATTRIBUTES
-=head2 name
-
-=head2 action
-
-L<Reaction::InterfaceModel::Action>
+=head2 model
=head2 attribute
-L<Reaction::Meta::InterfaceModel::Action::ParameterAttribute>
-
=head2 value
-=head2 needs_sync
+=head2 name
=head2 label
-User friendly label, by default is based on the name.
-
-=head2 message
-
-Optional string relating to the field.
-
-=head1 SEE ALSO
-
-=head2 L<Reaction::UI::ViewPort>
-
-=head2 L<Reaction::UI::ViewPort::DisplayField>
-
-=head2 L<Reaction::UI::ViewPort::Field::Boolean>
-
-=head2 L<Reaction::UI::ViewPort::Field::ChooseMany>
-
-=head2 L<Reaction::UI::ViewPort::Field::ChooseOne>
-
-=head2 L<Reaction::UI::ViewPort::Field::DateTime>
-
-=head2 L<Reaction::UI::ViewPort::Field::File>
-
-=head2 L<Reaction::UI::ViewPort::Field::HiddenArray>
-
-=head2 L<Reaction::UI::ViewPort::Field::Number>
-
-=head2 L<Reaction::UI::ViewPort::Field::Password>
-
-=head2 L<Reaction::UI::ViewPort::Field::String>
-
-=head2 L<Reaction::UI::ViewPort::Field::Text>
-
-=head2 L<Reaction::UI::ViewPort::Field::TimeRange>
+=head2 value_string
=head1 AUTHORS
projects / catagits/Reaction.git / blobdiff