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|
# ABSTRACT: Multiples Directive for Validation Class Field Definitions
package Validation::Class::Directive::Multiples;
use strict;
use warnings;
use base 'Validation::Class::Directive';
use Validation::Class::Util;
our $VERSION = '7.900057'; # VERSION
has 'mixin' => 0;
has 'field' => 1;
has 'multi' => 0;
has 'message' => '%s does not support multiple values';
# ensure most core directives execute before this one
has 'dependencies' => sub {{
normalization => [],
validation => [qw(
alias
between
depends_on
error
errors
filtering
filters
label
length
matches
max_alpha
max_digits
max_length
max_sum
min_alpha
min_digits
min_length
min_sum
mixin
mixin_field
name
options
pattern
readonly
required
toggle
)]
}};
sub after_validation {
my $self = shift;
my ($proto, $field, $param) = @_;
if (defined $field->{multiples} && defined $param) {
$self->after_validation_delete_clones($proto, $field, $param);
}
return $self;
}
sub after_validation_delete_clones {
my $self = shift;
my ($proto, $field, $param) = @_;
my $name = $field->name;
# this will add additional processing overhead which we hate, but is how we
# will currently prevent the reaping of strangely named fields that appear
# to be clones/clonable but are not in-fact ... so we'll check if the field
# is in the clones array
return unless grep { defined $_ and $name eq $_ }
@{$proto->stash->{'directive.validation.clones'}}
;
my ($key, $index) = $name =~ /^(.*)\:(\d+)$/;
if ($key && defined $index) {
my $value = $proto->params->delete($name);
$proto->params->{$key} ||= [];
$proto->params->{$key}->[$index] = $value;
# inherit errors from clone
if ($proto->fields->has($key) && $proto->fields->has($name)) {
$proto->fields->get($key)->errors->add(
$proto->fields->get($name)->errors->list
);
}
# remove clone permenantly
$proto->fields->delete($name);
delete $proto->stash->{'directive.validation.clones'}->[$index];
}
return $self;
}
sub before_validation {
my $self = shift;
my ($proto, $field, $param) = @_;
if (defined $field->{multiples} && defined $param) {
$self->before_validation_create_clones($proto, $field, $param);
}
return $self;
}
sub before_validation_create_clones {
my $self = shift;
my ($proto, $field, $param) = @_;
# clone fields to handle parameters with multi-values
if (isa_arrayref($param)) {
# is cloning allowed? .. in the U.S it is currently illegal :}
return $self->error(@_) if ! $field->{multiples};
# clone deterministically
my $name = $field->name;
for (my $i=0; $i < @{$param}; $i++) {
my $clone = "$name:$i";
$proto->params->add($clone => $param->[$i]);
my $label = ($field->label || $name);
my $options = {label => "$label #".($i+1), multiples => 0};
$proto->clone_field($name, $clone => $options);
# add clones to field list to be validated
push @{$proto->stash->{'validation.fields'}}, $clone
if grep { $_ eq $name } @{$proto->stash->{'validation.fields'}}
;
# record clones (to be reaped later)
push @{$proto->stash->{'directive.validation.clones'}}, $clone;
}
$proto->params->delete($name);
# remove the field the clones are based on from the fields list
@{$proto->stash->{'validation.fields'}} =
grep { $_ ne $name } @{$proto->stash->{'validation.fields'}}
if @{$proto->stash->{'validation.fields'}}
;
}
return $self;
}
sub normalize {
my $self = shift;
my ($proto, $field, $param) = @_;
# set a default value for the multiples directives
# ... the default policy is deny,allow
$field->{multiples} = 0 if ! defined $field->{multiples};
return $self;
}
1;
__END__
=pod
=head1 NAME
Validation::Class::Directive::Multiples - Multiples Directive for Validation Class Field Definitions
=head1 VERSION
version 7.900057
=head1 SYNOPSIS
use Validation::Class::Simple;
my $rules = Validation::Class::Simple->new(
fields => {
user_options => {
multiples => 1
}
}
);
# set parameters to be validated
$rules->params->add($parameters);
# validate
unless ($rules->validate) {
# handle the failures
}
=head1 DESCRIPTION
Validation::Class::Directive::Multiples is a core validation class field
directive that validates whether the associated parameters may contain a
multi-value (an array of strings).
=head1 AUTHOR
Al Newkirk <anewkirk@ana.io>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Al Newkirk.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|
