[Catalyst] RFC: Catalyst::Controller::RHTMLO

[Zbigniew Lukasiak]

On Mon, Feb 2, 2009 at 7:59 PM, Jason Gottshall <jgottshall at capwiz.com> wrote:
> Zbigniew Lukasiak wrote:
>>
>> Maybe I am just being lazy now - but before I start digging too deep -
>> did you take into accout that some forms require loading stuff from
>> the DB?  It can happen in to cases:
>>
>> 1) loading SELECT choices lists - this one is easy - because it can be
>> done at initialisation as it does not depend on th request.
>>
>> 2) loading related forms for one to many relations - where you don't
>> know how many related forms you need until you have the main object -
>> i.e. until request time.  See Rose::HTML::Form::Repeatable.
>
> Yes, I'm actually thinking of doing
>
>  my $form = $class->new( app => $c );
>
> so that the form can access model-related stuff as necessary. (This is safe
> because RHTMLO automatically weakens any value passed to ->app). Would
> something like that address your cases?

Hmm - I thought you mentioned something about caching the form objects
between requests?  Passing $c to the creator means you create the
forms on per request basis.   If you like the caching idea - then what
would be needed is a kind of two phase initialisation.  First you
create a prototype - and then you add the necessary repeatable
sub-forms on per request basis to it (of course this is only needed if
you use repeatable sub-forms).

Cheers,
Zbigniew
http://brudnopis.blogspot.com/
http://perlalchemy.blogspot.com/