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1 | package Reaction::UI::ViewPort::Field; |
2 | |
3 | use Reaction::Class; |
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4 | use aliased 'Reaction::InterfaceModel::Object'; |
5 | use aliased 'Reaction::Meta::InterfaceModel::Object::ParameterAttribute'; |
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6 | |
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7 | use namespace::clean -except => [ qw(meta) ]; |
8 | extends 'Reaction::UI::ViewPort'; |
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9 | |
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10 | has value => (is => 'rw', lazy_build => 1); |
11 | has name => (is => 'rw', isa => 'Str', lazy_build => 1); |
12 | has label => (is => 'rw', isa => 'Str', lazy_build => 1); |
13 | has value_string => (is => 'rw', isa => 'Str', lazy_build => 1); |
14 | |
15 | has model => (is => 'ro', isa => Object, required => 1); |
16 | has attribute => (is => 'ro', isa => ParameterAttribute, required => 1); |
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17 | |
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18 | sub _build_name { shift->attribute->name }; |
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19 | |
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20 | sub _build_label { |
21 | join(' ', map { ucfirst } split('_', shift->name)); |
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22 | } |
23 | |
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24 | sub _build_value { |
25 | my ($self) = @_; |
26 | my $reader = $self->attribute->get_read_method; |
27 | return $self->model->$reader; |
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28 | } |
29 | |
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30 | sub _model_has_value { |
31 | my ($self) = @_; |
32 | my $predicate = $self->attribute->get_predicate_method; |
33 | |
34 | if (!$predicate || $self->model->$predicate |
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35 | # || ($self->attribute->is_lazy |
36 | # && !$self->attribute->is_lazy_fail) |
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37 | ) { |
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38 | # edenc -- uncommented the lazy checks above |
39 | # model->$predicate returns false if the value isn't set |
40 | # but has a lazy builder |
41 | |
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42 | # either model attribute has a value now or can build it |
43 | return 1; |
44 | } |
45 | return 0; |
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46 | } |
47 | |
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48 | sub _build_value_string { |
49 | my ($self) = @_; |
50 | # XXX need the defined test because the IM lazy builds from |
51 | # the model and DBIC can have nullable fields and DBIC doesn't |
52 | # have a way to tell us that doesn't force value inflation (extra |
53 | # SELECTs for belongs_to) so basically we're screwed. |
54 | return ($self->_model_has_value && defined($self->_build_value) |
55 | ? $self->_value_string_from_value |
56 | : $self->_empty_string_value); |
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57 | } |
58 | |
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59 | sub _value_string_from_value { |
60 | shift->value; |
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61 | } |
62 | |
63 | sub _empty_string_value { '' } |
64 | |
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65 | sub value_is_required { |
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66 | my $self = shift; |
67 | $self->model->attribute_is_required($self->attribute); |
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68 | } |
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69 | |
70 | __PACKAGE__->meta->make_immutable; |
71 | |
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72 | |
73 | 1; |
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74 | __END__; |
75 | |
76 | =head1 NAME |
77 | |
78 | Reaction::UI::ViewPort::Field |
79 | |
80 | =head1 DESCRIPTION |
81 | |
82 | =head1 ATTRIBUTES |
83 | |
84 | =head2 model |
85 | |
86 | =head2 attribute |
87 | |
88 | =head2 value |
89 | |
90 | =head2 name |
91 | |
92 | =head2 label |
93 | |
94 | =head2 value_string |
95 | |
96 | =head1 AUTHORS |
97 | |
98 | See L<Reaction::Class> for authors. |
99 | |
100 | =head1 LICENSE |
101 | |
102 | See L<Reaction::Class> for the license. |
103 | |
104 | =cut |