CPAN::Groonga

side and JSON will be used to send the form parameters. What to do? 
Well CPAN to the rescue. Install the TT filter for JSON, along with the 
JSON.pm module. Now create a template named json.tt like 

this:

    [% USE JSON %]
    [% view.data.json %]

Change the froms template from form.tt to json.tt and add the following 
statement:

    $self->content_type('application/json');

You are now sendi

ng your form as a JSON datastream.

=item cancel_action (a code ref)

Called with:

    your self object
    the data you passed to add, edit or deltet
    the action (add, edit or delete)
    the use