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1 | package Reaction::UI::ViewPort::Field::Role::Mutable; |
2 | |
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3 | use Reaction::Role; |
4 | |
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5 | use aliased 'Reaction::InterfaceModel::Action'; |
6 | use aliased 'Reaction::Meta::InterfaceModel::Action::ParameterAttribute'; |
7 | |
8 | role Mutable, which { |
9 | has model => (is => 'ro', isa => Action, required => 1); |
10 | has attribute => (is => 'ro', isa => ParameterAttribute, required => 1); |
11 | |
12 | has value => (is => 'rw', lazy_build => 1, trigger_adopt('value')); |
13 | has needs_sync => (is => 'rw', isa => 'Int', default => 0); |
14 | has message => (is => 'rw', isa => 'Str'); |
15 | |
16 | implements adopt_value => as { |
17 | my ($self) = @_; |
18 | $self->needs_sync(1); # if $self->has_attribute; |
19 | }; |
20 | |
21 | implements sync_to_action => as { |
22 | my ($self) = @_; |
23 | return unless $self->needs_sync && $self->has_value; |
24 | my $attr = $self->attribute; |
25 | if (my $tc = $attr->type_constraint) { |
26 | my $value = $self->value; |
27 | $value = $tc->coercion->coerce($value) if ($tc->has_coercion); |
28 | my $error = $tc->validate($self->value); # should we be checking against $value? |
29 | if (defined $error) { |
30 | $self->message($error); |
31 | return; |
32 | } |
33 | } |
34 | my $writer = $attr->get_write_method; |
35 | confess "No writer for attribute" unless defined($writer); |
36 | $self->action->$writer($self->value); #should we be passing $value ? |
37 | $self->needs_sync(0); |
38 | }; |
39 | |
40 | implements sync_from_action => as { |
41 | my ($self) = @_; |
42 | return unless !$self->needs_sync; # && $self->has_attribute; |
43 | $self->message($self->action->error_for($self->attribute) || ''); |
44 | }; |
45 | |
46 | around accept_events => sub { ('value', shift->(@_)) }; |
47 | |
48 | }; |
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49 | |
50 | 1; |