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package Reaction::InterfaceModel::Action;
use Reaction::Meta::InterfaceModel::Action::Class;
use metaclass 'Reaction::Meta::InterfaceModel::Action::Class';
use Reaction::Meta::Attribute;
use Reaction::Class;
use namespace::clean -except => [ qw(meta) ];
sub _debug { $ENV{REACTION_IM_ACTION_DEBUG} }
has error_message => (
is => 'rw',
isa => 'Str',
metaclass => 'Reaction::Meta::Attribute'
);
has target_model => (
is => 'ro',
required => 1,
metaclass => 'Reaction::Meta::Attribute'
);
has ctx => (
isa => 'Catalyst',
is => 'ro',
lazy_fail => 1,
metaclass => 'Reaction::Meta::Attribute',
weak_ref => 1,
);
sub parameter_attributes {
shift->meta->parameter_attributes;
}
sub parameter_hashref {
my ($self) = @_;
my %params;
foreach my $attr ($self->parameter_attributes) {
my $reader = $attr->get_read_method;
my $predicate = $attr->get_predicate_method;
warn "${\$attr->name} has default: ${\$attr->has_default}" if _debug();
next if defined($predicate) && !$self->$predicate
&& ($attr->is_lazy_fail || !$attr->has_default);
$params{$attr->name} = $self->$reader;
}
return \%params;
}
sub can_apply {
my ($self) = @_;
foreach my $attr ($self->parameter_attributes) {
my $predicate = $attr->get_predicate_method;
if ($self->attribute_is_required($attr)) {
confess "No predicate for required attribute ${\$attr->name} for ${self}"
unless $predicate;
if( !$self->$predicate && ($attr->is_lazy_fail || !$attr->has_default) ) {
warn "${\$attr->name} is required but hasn't been set" if _debug();
return 0;
}
}
if ($attr->has_valid_values) {
unless ($predicate && !($self->$predicate)) {
my $reader = $attr->get_read_method;
unless( $attr->check_valid_value($self, $self->$reader) ) {
warn "\${\$self->$reader} isn't a valid value for ${\$attr->name}" if _debug();
return 0;
}
}
}
}
return 1;
};
sub error_for {
my ($self, $attr) = @_;
confess "No attribute passed to error_for" unless defined($attr);
unless (ref($attr)) {
my $meta = $self->meta->find_attribute_by_name($attr);
confess "Can't find attribute ${attr} on $self" unless $meta;
$attr = $meta;
}
return $self->error_for_attribute($attr);
};
sub error_for_attribute {
my ($self, $attr) = @_;
my $reader = $attr->get_read_method;
my $predicate = $attr->get_predicate_method;
if ($self->attribute_is_required($attr)) {
unless ($self->$predicate) {
return $attr->name." is required";
}
}
if ($self->$predicate && $attr->has_valid_values) {
unless ($attr->check_valid_value($self, $self->$reader)) {
return "Not a valid value for ".$attr->name;
}
}
return; # ok
};
sub attribute_is_required {
my ($self, $attr) = @_;
return $attr->is_required;
};
sub sync_all { }
__PACKAGE__->meta->make_immutable;
1;
=head1 NAME
Reaction::InterfaceModel::Action
=head1 SYNOPSIS
=head1 DESCRIPTION
=head2 target_model
=head2 ctx
=head2 parameter_attributes
=head1 SEE ALSO
L<Reaction::Meta::Attribute>
=head1 AUTHORS
See L<Reaction::Class> for authors.
=head1 LICENSE
See L<Reaction::Class> for the license.
=cut
|
