DemoMailForm - Demo of CGI::Portable that implements an e-mail submission form with unlimited questions.


Perl Version


Standard Modules

        Net::SMTP 2.15 (earlier versions may work)

Nonstandard Modules

        CGI::Portable 0.50
        CGI::Portable::AppStatic 0.50
        CGI::MultiValuedHash 1.09
        HTML::FormTemplate 2.021


Use Default Question

        use strict;
        use warnings;

        require CGI::Portable;
        my $globals = CGI::Portable->new();

        require CGI::Portable::AdapterCGI;
        my $io = CGI::Portable::AdapterCGI->new();
        $io->fetch_user_input( $globals );

        $globals->default_application_title( 'Demo Email Form' );
        $globals->default_maintainer_name( 'Tony Simons' );
        $globals->default_maintainer_email_address( '' );

        my %CONFIG = ();

        $globals->set_prefs( \%CONFIG );
        $globals->call_component( 'DemoMailForm' );

        $io->send_user_output( $globals );


Use Custom Questions Defined Here

        my %CONFIG = (
                custom_fd => 1,
                field_defn => [
                                visible_title => "What's your age?",
                                type => 'textfield',
                                name => 'age',
                                is_required => 1,
                                validation_rule => '\d',
                                error_message => 'You must enter a number.',
                        }, {
                                visible_title => "What's the combination?",
                                type => 'checkbox_group',
                                name => 'words',
                                'values' => ['eenie', 'meenie', 'minie', 'moe'],
                                default => ['eenie', 'minie'],
                                labels => [qw( This That And Another )],
                        }, {
                                visible_title => "Who do you love?",
                                type => 'textfield',
                                name => 'name',
                        }, {
                                visible_title => "What's your favorite colour?",
                                type => 'popup_menu',
                                name => 'color',
                                'values' => ['red', 'green', 'blue', 'chartreuse'],

Use Custom Questions Defined In Perl File

        use Cwd;
        $globals->file_path_root( cwd() );  # let us default to current working dir
        $globals->file_path_delimiter( $^O=~/Mac/i ? ":" : $^O=~/Win/i ? "\\" : "/" );

        my %CONFIG = (
                custom_fd => 1,
                field_defn => 'survey_questions.txt',  # do Perl code to make array ref

Use Custom Questions Defined In simple Boulder File

        use Cwd;
        $globals->file_path_root( cwd() );  # let us default to current working dir
        $globals->file_path_delimiter( $^O=~/Mac/i ? ":" : $^O=~/Win/i ? "\\" : "/" );

        my %CONFIG = (
                custom_fd => 1,
                field_defn => 'survey_questions.txt',  # file in simple Boulder format
                fd_in_seqf => 1,

Customize Subject Of Your Emails

        my %CONFIG = (
                email_subj => 'Another Survey Response',

Customize Webpage Intro Text

        my %CONFIG = (
                msg_new_title => 'Leave A Message',  # custom title for new messages
                msg_new_head => <<__endquote,   # custom heading for new messages
        <h1>Leave A Message</h1>
        <p>Please leave a message after the beep.  Answer the questions as faithfully
        and truthfully as you can, as we have a lie detector set up and any false 
        answers will be met with spam.</p>


This Perl 5 object class is part of a demonstration of CGI::Portable in use. It is one of a set of "application components" that takes its settings and user input through CGI::Portable and uses that class to send its user output. This demo module set can be used together to implement a web site complete with static html pages, e-mail forms, guest books, segmented text document display, usage tracking, and url-forwarding. Of course, true to the intent of CGI::Portable, each of the modules in this demo set can be used independantly of the others.


This class does not export any functions or methods, so you need to call them using object notation. This means using Class->function() for functions and $object->method() for methods. If you are inheriting this class for your own modules, then that often means something like $self->method().


main( GLOBALS )

You invoke this method to run the application component that is encapsulated by this class. The required argument GLOBALS is an CGI::Portable object that you have previously configured to hold the instance settings and user input for this class. When this method returns then the encapsulated application will have finished and you can get its user output from the CGI::Portable object.


This POD is coming when I get the time to write it.

        custom_fd   # if true, we use a custom list of 
                # questions in the form; otherwise, we simply have a "message" field.
        field_defn  # instruc for how to make form fields
                # If array ref, this is taken literally as list of definitions.
                # Otherwise, this is name of a file containing the definitions.  
                # Field definitions are processed by HTML::FormTemplate, so please see 
                # its POD to know what options you have in your forms.
        fd_in_seqf  # if true, above file is of the 
                # format that is a simplified form of Boulder; else it is Perl code

        email_subj  # if set, use when sending e-mails

        msg_new_title  # custom title for new messages
        msg_new_head   # custom heading for new messages


Copyright (c) 1999-2004, Darren R. Duncan. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. However, I do request that this copyright information and credits remain attached to the file. If you modify this module and redistribute a changed version then please attach a note listing the modifications. This module is available "as-is" and the author can not be held accountable for any problems resulting from its use.

I am always interested in knowing how my work helps others, so if you put this module to use in any of your own products or services then I would appreciate (but not require) it if you send me the website url for said product or service, so I know who you are. Also, if you make non-proprietary changes to the module because it doesn't work the way you need, and you are willing to make these freely available, then please send me a copy so that I can roll desirable changes into the main release.

Address comments, suggestions, and bug reports to


perl(1), CGI::Portable, CGI::Portable::AppStatic, HTML::FormTemplate, CGI::MultiValuedHash, Net::SMTP, Fcntl, Symbol, Boulder, CGI::Portable::AdapterCGI.