1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
# ABSTRACT: Decimal Directive for Validation Class Field Definitions
package Validation::Class::Directive::Decimal;
use strict;
use warnings;
use base 'Validation::Class::Directive';
use Validation::Class::Util;
our $VERSION = '7.900057'; # VERSION
has 'mixin' => 1;
has 'field' => 1;
has 'multi' => 0;
has 'message' => '%s requires a valid decimal number';
sub validate {
my ($self, $proto, $field, $param) = @_;
if (defined $field->{decimal} && defined $param) {
# checks for a valid decimal. Both the sign and exponent are optional
# 0 => Any number of decimal places, including none
# 1 => Any number of decimal places greater than 0, or a float|double
# 2 => Exactly that many number of decimal places
if ($field->{required} || $param) {
my $type = $field->{decimal};
my $lnum = '[0-9]+';
my $dnum = "[0-9]*[\.]${lnum}";
my $sign = '[+-]?';
my $exp = "(?:[eE]${sign}${lnum})?";
my $dre;
if ($type == 0) {
$dre = qr/^${sign}(?:${lnum}|${dnum})${exp}$/;
}
elsif ($type == 1) {
$dre = qr/^${sign}${dnum}${exp}$/;
}
else {
$type = "[0-9]\{${type}}";
$dnum = "(?:[0-9]*[\.]${type}|${lnum}[\.]${type})";
$dre = qr/^${sign}${dnum}${exp}$/;
}
$self->error($proto, $field) unless $param =~ $dre;
}
}
return $self;
}
1;
__END__
=pod
=head1 NAME
Validation::Class::Directive::Decimal - Decimal Directive for Validation Class Field Definitions
=head1 VERSION
version 7.900057
=head1 SYNOPSIS
use Validation::Class::Simple;
my $rules = Validation::Class::Simple->new(
fields => {
amount_paid => {
decimal => 1
}
}
);
# set parameters to be validated
$rules->params->add($parameters);
# validate
unless ($rules->validate) {
# handle the failures
}
=head1 DESCRIPTION
Validation::Class::Directive::Decimal is a core validation class field
directive that provides validation of floating point integers.
=over 8
=item * alternative argument: a-single-variable-value
=item * option: 0 e.g. Any number of decimal places, including none
=item * option: 1 e.g. Any number of decimal places greater than 0, or a float|double
=item * option: $n e.g. Exactly that many number of decimal places
This directive can be passed a single value only:
fields => {
amount_paid => {
decimal => 2 # 2 decimal places
}
}
=back
=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
|
