CGI::FormBuilder::Source(3) Source adapters for FormBuilder

SYNOPSIS


# Define a source adapter
package CGI::FormBuilder::Source::Whatever;
sub new {
my $self = shift;
my $class = ref($self) || $self;
my %opt = @_;
return bless \%opt, $class;
}
sub parse {
my $self = shift;
my $file = shift || $self->{source};
# open the file and parse it, or whatever
my %formopt;
open(F, "<$file") || die "Can't read $file: $!";
while (<F>) {
# ... do stuff to the line ...
$formopt{$fb_option} = $fb_value;
}
# return hash of $form options
return wantarray ? %formopt : \%formopt;
}

DESCRIPTION

This documentation describes the usage of FormBuilder sources, as well as how to write your own source adapter.

An external source is invoked by using the "source" option to the top-level "new()" method: 

    my $form = CGI::FormBuilder->new(
                    source => 'source_file.conf'
               );

This example points to a filename that contains a file following the "CGI::FormBuilder::Source::File" layout. Like with the "template" option, you can also specify "source" as a reference to a hash, allowing you to use other source adapters: 

    my $form = CGI::FormBuilder->new(
                    fields => \@fields,
                    source => {
                        type => 'File',
                        source => '/path/to/source.conf',
                    }
               );

The "type" option specifies the name of the source adapter. Currently accepted types are: 

    File  -  CGI::FormBuilder::Source::File

In addition to one of these types, you can also specify a complete package name, in which case that module will be autoloaded and its "new()" and "parse()" routines used. For example: 

    my $form = CGI::FormBuilder->new(
                    fields => \@fields,
                    source => {
                        type => 'My::Source::Module',
                        somefile => '/path/to/source.conf',
                    }
               );

All other options besides "type" are passed to the constructor for that source module verbatim, so it's up to you and/or the source module on how these additional options should be handled.

REVISION

$Id: Source.pm 100 2007-03-02 18:13:13Z nwiger $

AUTHOR

Copyright (c) Nate Wiger <http://nateware.com>. All Rights Reserved.

This module is free software; you may copy this under the terms of the GNU General Public License, or the Artistic License, copies of which should have accompanied your Perl kit.

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