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|
package HTML::FormFu::Constraint::File::Size;
use Moose;
use MooseX::Attribute::Chained;
use MooseX::Aliases;
extends 'HTML::FormFu::Constraint';
use Carp qw( croak );
use Scalar::Util qw( blessed );
has minimum => (
is => 'rw',
alias => 'min',
traits => ['Chained'],
);
has maximum => (
is => 'rw',
alias => 'max',
traits => ['Chained'],
);
*min_kilobyte = \&minimum_kilobyte;
*max_kilobyte = \&maximum_kilobyte;
*min_megabyte = \&minimum_megabyte;
*max_megabyte = \&maximum_megabyte;
sub constrain_value {
my ( $self, $value ) = @_;
return 1 if !defined $value || $value eq '';
return if !blessed($value) || !$value->isa('HTML::FormFu::Upload');
my $min = $self->minimum;
my $max = $self->maximum;
my $size = $value->size || 0;
if ( defined $min ) {
return 0 if $size < $min;
}
if ( defined $max ) {
return 0 if $size > $max;
}
return 1;
}
sub _localize_args {
my ($self) = @_;
return $self->min, $self->max;
}
sub minimum_kilobyte {
my ( $self, $kb ) = @_;
croak "minimum_kilobyte() cannot be used as a getter"
if @_ != 2;
return $self->minimum( $kb * 1024 );
}
sub minimum_megabyte {
my ( $self, $kb ) = @_;
croak "minimum_megabyte() cannot be used as a getter"
if @_ != 2;
return $self->minimum( $kb * 1_048_576 );
}
sub maximum_kilobyte {
my ( $self, $kb ) = @_;
croak "maximum_kilobyte() cannot be used as a getter"
if @_ != 2;
return $self->maximum( $kb * 1024 );
}
sub maximum_megabyte {
my ( $self, $kb ) = @_;
croak "maximum_megabyte() cannot be used as a getter"
if @_ != 2;
return $self->maximum( $kb * 1_048_576 );
}
__PACKAGE__->meta->make_immutable;
1;
__END__
=head1 NAME
HTML::FormFu::Constraint::File::Size - File Size Constraint
=head1 DESCRIPTION
Ensure that an uploaded file meets minimum or maximum size constraints.
=head1 METHODS
=head2 minimum
=head2 min
Optional.
The minimum file size in bytes.
L</min> is an alias for L</minimum>.
=head2 maximum
=head2 max
Optional.
The maximum file size in bytes.
L</max> is an alias for L</maximum>.
=head2 minimum_kilobyte
=head2 min_kilobyte
Shortcut for C<< $constraint->minimum( $value * 1024 ) >>.
L</min_kilobyte> is an alias for L</minimum_kilobyte>.
=head2 maximum_kilobyte
=head2 max_kilobyte
Shortcut for C<< $constraint->maximum( $value * 1024 ) >>.
L</max_kilobyte> is an alias for L</maximum_kilobyte>.
=head2 minimum_megabyte
=head2 min_megabyte
Shortcut for C<< $constraint->minimum( $value * 1_048_576 ) >>.
L</min_megabyte> is an alias for L</minimum_megabyte>.
=head2 maximum_megabyte
=head2 max_megabyte
Shortcut for C<< $constraint->maximum( $value * 1_048_576 ) >>.
L</max_megabyte> is an alias for L</maximum_megabyte>.
=head1 SEE ALSO
Is a sub-class of, and inherits methods from L<HTML::FormFu::Constraint>
L<HTML::FormFu>
=head1 AUTHOR
Carl Franks, C<cfranks@cpan.org>
=head1 LICENSE
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
|
