T.J. Mather > HTML-FillInForm-2.00 > HTML::FillInForm

Download:
HTML-FillInForm-2.00.tar.gz

Dependencies

Annotate this POD

Related Modules

HTML::Template
CGI::Application
Class::DBI
CGI::FormBuilder
CGI::Session
Template::Alloy
HTML::Parser
CGI::Carp
Data::Dumper
HTML::Entities
more...
By perlmonks.org

CPAN RT

New  2
Open  3
View/Report Bugs
Module Version: 2.00   Source   Latest Release: HTML-FillInForm-2.21

NAME ^

HTML::FillInForm - Populates HTML Forms with data.

DESCRIPTION ^

This module fills in an HTML form with data from a Perl data structure, allowing you to keep the HTML and Perl separate.

Here are two common use cases:

1. A user submits an HTML form without filling out a required field. You want to redisplay the form with all the previous data in it, to make it easy for the user to see and correct the error.

2. You have just retrieved a record from a database and need to display it in an HTML form.

SYNOPSIS ^

Fill HTML form with data.

  $output = HTML::FillInForm->fill( \$html,   $q );
  $output = HTML::FillInForm->fill( \@html,   [$q1,$q2] );
  $output = HTML::FillInForm->fill( \*HTML,   \%data );
  $output = HTML::FillInForm->fill( 't.html', [\%data1,%data2] );

The HTML can be provided as a scalarref, arrayref, filehandle or file. The data can come from one or more hashrefs, or objects which support a param() method, like CGI.pm, Apache::Request, etc.

fill ^

The basic syntax is seen above the Synopsis. There are a few additional options.

Options

target => 'form1'

Suppose you have multiple forms in a html file and only want to fill in one.

  $output = HTML::FillInForm->fill(\$html, $q, target => 'form1');

This will fill in only the form inside

  <FORM name="form1"> ... </FORM>

fill_password => 0

Passwords are filled in by default. To disable:

  fill_password => 0

ignore_fields => []

To disable the filling of some fields:

    ignore_fields => ['prev','next']

disable_fields => []

To disable fields from being edited:

    disable_fields => [ 'uid', 'gid' ]

File Upload fields

File upload fields cannot be supported directly. Workarounds include asking the user to re-attach any file uploads or fancy server-side storage and referencing. You are on your own.

Clearing Fields

Fields are cleared if you set their value to an empty string or empty arrayref but not undef:

  # this will leave the form element foo untouched
  HTML::FillInForm->fill(\$html, { foo => undef });

  # this will set clear the form element foo
  HTML::FillInForm->fill(\$html, { foo => "" });

It has been suggested to add a option to change the behavior so that undef values will clear the form elements. Patches welcome.

Old syntax ^

You probably need to read no further. The remaining docs concern the 1.x era syntax, which is still supported.

new

Call new() to create a new FillInForm object:

  $fif = HTML::FillInForm->new;
  $fif->fill(...);

In theory, there is a slight performance benefit to calling new() before fill() if you make multiple calls to fill() before you destroy the object. Benchmark before optimizing.

fill ( old syntax )

Instead of having your HTML and data types auto-detected, you can declare them explicitly in your call to fill():

HTML source options:

    arrayref  => @html
    scalarref => $html
    file      => \*HTML 
    file      => 't.html'

Fill Data options:

    fobject   => $data_obj  # with param() method
    fdat      => \%data

Additional methods are also available:

    fill_file(\*HTML,...);
    fill_file('t.html',...);
    fill_arrayref(\@html,...);
    fill_scalarref(\$html,...);

CALLING FROM OTHER MODULES ^

Apache::PageKit

To use HTML::FillInForm in Apache::PageKit is easy. It is automatically called for any page that includes a <form> tag. It can be turned on or off by using the fill_in_form configuration option.

Apache::ASP v2.09 and above

HTML::FillInForm is now integrated with Apache::ASP. To activate, use

  PerlSetVar FormFill 1
  $Response->{FormFill} = 1

HTML::Mason

Using HTML::FillInForm from HTML::Mason is covered in the FAQ on the masonhq.com website at http://www.masonhq.com/?FAQ:HTTPAndHTML#h-how_can_i_populate_form_values_automatically_

VERSION ^

This documentation describes HTML::FillInForm module version 2.00

SECURITY ^

Note that you might want to think about caching issues if you have password fields on your page. There is a discussion of this issue at

http://www.perlmonks.org/index.pl?node_id=70482

In summary, some browsers will cache the output of CGI scripts, and you can control this by setting the Expires header. For example, use -expires in CGI.pm or set browser_cache to no in Config.xml file of Apache::PageKit.

TRANSLATION ^

Kato Atsushi has translated these docs into Japanese, available from

http://perldoc.jp

BUGS ^

Please submit any bug reports to tjmather@maxmind.com.

NOTES ^

Requires Perl 5.005 and HTML::Parser version 3.26.

I wrote this module because I wanted to be able to insert CGI data into HTML forms, but without combining the HTML and Perl code. CGI.pm and Embperl allow you so insert CGI data into forms, but require that you mix HTML with Perl.

There is a nice review of the module available here: http://www.perlmonks.org/index.pl?node_id=274534

AUTHOR ^

(c) 2005 TJ Mather, tjmather@maxmind.com, http://www.maxmind.com/

All rights reserved. This package is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO ^

HTML::Parser, Data::FormValidator, HTML::Template, Apache::PageKit

CREDITS ^

Fixes, Bug Reports, Docs have been generously provided by:

  Tatsuhiko Miyagawa            Joseph Yanni
  Boris Zentner                 Philip Mak
  Dave Rolsky                   Jost Krieger
  Patrick Michael Kane          Gabriel Burka
  Ade Olonoh                    Bill Moseley
  Tom Lancaster                 James Tolley
  Martin H Sluka                Dan Kubb
  Mark Stosberg                 Alexander Hartmaier
  Jonathan Swartz               Paul Miller
  Trevor Schellhorn             Anthony Ettinger
  Jim Miner                     Simon P. Ditner
  Paul Lindner                  Michael Peters
  Maurice Aubrey                Trevor Schellhorn
  Andrew Creer                

Thanks!

syntax highlighting: