HTML::FormFu::Constraint::File - File Upload Constraint

HTML-FormFu documentation Contained in the HTML-FormFu distribution.

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NAME

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HTML::FormFu::Constraint::File - File Upload Constraint

DESCRIPTION

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Ensure the submitted value is a file upload.

This Constraint is not needed if you use any of the File::* Constraints, as they all make the same check as this Constraint does.

LIMITATIONS

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This can only verify that your CGI backend (CGI, Catalyst, CGI::Simple) thinks it was a file upload. If the user submits a filename which doesn't exist on their system, you will probably get a valid HTML::FormFu::Upload object, with a valid filehandle, but no Content-Length. This Constraint would still see this as a valid uploaded file - if you want to ensure that you get a file with content, instead use HTML::FormFu::Constraint::File::Size with min set to 1.

SEE ALSO

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Is a sub-class of, and inherits methods from HTML::FormFu::Constraint

HTML::FormFu

AUTHOR

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Carl Franks, cfranks@cpan.org

LICENSE

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This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.

HTML-FormFu documentation Contained in the HTML-FormFu distribution. 
package HTML::FormFu::Constraint::File;

use Moose;
extends 'HTML::FormFu::Constraint';

use Scalar::Util qw( blessed );

sub constrain_value {
    my ( $self, $value ) = @_;

    return 1 if !defined $value || $value eq '';

    return blessed($value) && $value->isa('HTML::FormFu::Upload');
}

__PACKAGE__->meta->make_immutable;

1;

__END__