NAME Spark Form - A simple yet powerful forms validation system that promotes reuse. SYNOPSIS use Spark::Form; use CGI; #Because it makes for a quick and oversimplistic example use Third::Party::Field; $form = Spark::Form->new(plugin_ns => 'MyApp::Field'); # Add a couple of inbuilt modules $form->add('email','email',confirm_field => 'email-confirm') ->add('email','email-confirm') ->add('password','password',regex => qr/^\S{6,}$/), #This one will be autoloaded from MyApp::Field::Username ->add('username','username') # And this shows how you can use a third party field of any class name ->add(Third::Party::Field->new(name => 'blah')); #Pass in a hashref of params to populate the virtual form with data $form->data(CGI->new->params); #And do the actual validation if ($form->validate) { print "You are now registered"; } else { print join "\n", $form->errors; } and over in MyApp/Field/Username.pm... package MyApp::Form::Field::Username; use base Spark::Form::Field; sub validate { my ($self,$v) = @_; if (length $v < 6 or length $v > 12) { $self->error("Usernames must be 6-12 characters long"); } elsif ($v =~ /[^a-zA-Z0-9_-]/) { $self->error("Usernames may contain only a-z,A-Z,0-9, _ and -"); } else { $self->error(undef); } $self->valid(!!$self->error()); } DEPENDENCIES Moose. I've dropped using Any::Moose. If you need the performance increase, perhaps it's time to start thinking about shifting off CGI. METHODS import (%options) Allows you to set some options for the forms class. class => String Optional, gives the basename for searching for form plugins. Given 'MyApp', it will try to load form plugins from MyApp::Form::Field::* source => String Optional, names a plugin to try and extract form data from. If unspecified, you will need to call $form->data(\%data); add ($thing,@rest) If $thing is a string, attempts to instantiate a plugin of that type and add it to the form. Requires the second argument to be a string name for the field to identify it in the form. Rest will become %kwargs If it is an arrayref, it loops over the contents (Useful for custom fields, will probably result in bugs for string field names).@rest will be passed in each iteration. If it looks sufficiently like a field (implements Spark::Form::Field), then it will add it to the list of fields. @rest will just become %kwargs Uses 'field name' to locate it from the data passed in. This is a streaming interface, it returns the form itself. validate Validates the form. Sets "valid" and then also returns the value. data Allows you to pass in a hashref of data to populate the fields with before validation. Useful if you don't use a plugin to automatically populate the data. This is a streaming interface, it returns the form itself. BUILD Moose constructor. Test::Pod::Coverage made me do it. Adds "class" to the search path for field modules. get (Str) Returns the form field of that name Docs? Source? AUTHOR James Laver. . Thanks to the Django Project, whose forms module gave some inspiration. SEE ALSO The FAQ: Spark::Form::FAQ LICENSE Copyright (C) 2009 James Laver This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.