shallow copying req->params

[catagits/Reaction.git] / lib / Reaction / UI / ViewPort / Field.pm

diff --git a/lib/Reaction/UI/ViewPort/Field.pm b/lib/Reaction/UI/ViewPort/Field.pm
index b88c98b..ff89075 100644 (file)
--- a/lib/Reaction/UI/ViewPort/Field.pm
+++ b/lib/Reaction/UI/ViewPort/Field.pm
@@ -4,44 +4,71 @@ use Reaction::Class;
 use aliased 'Reaction::InterfaceModel::Object';
 use aliased 'Reaction::Meta::InterfaceModel::Object::ParameterAttribute';
 
-class Field is 'Reaction::UI::ViewPort', which {
+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;
 
-  has value        => (is => 'rw', lazy_fail => 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);
-
-  implements adopt_value => as {};
-
-  implements _build_name => as { shift->attribute->name };
-
-  implements _build_value_string => as {
-    my($self) = @_;
-    return $self->has_value? $self->value : '';
-  };
-
-  implements _build_label => as {
-    join(' ', map { ucfirst } split('_', shift->name));
-  };
-
-  implements BUILD => as {
-    my($self) = @_;
-    my $reader = $self->attribute->get_read_method;
-    my $predicate = $self->attribute->predicate;
-
-    if (!$predicate || $self->model->$predicate
-        || ($self->attribute->is_lazy
-            && !$self->attribute->is_lazy_fail)
-      ) {
-      $self->value($self->model->$reader);
-    }
-
-  };
-
-};
 
 1;
 __END__;