[jifty-devel] Action params at run time

[Salih Gönüllü]

Jesse Vincent wrote:
>
> On May 11, 2007, at 3:53 AM, Salih Gönüllü wrote:
>
>>
>> Hi all,
>>
>> Is it possible to 'declare' Action params at  runtime just before using
>> them ? something like:
>>
>> In MyApp::Action::MyAction
>>
>>     my %new_params = declare {
>>           param 'foo' => ... ;
>>           param 'bar'=> ... ;
>>     };
>>     $self->merge_with_params(\%new_params);  # or another method
>
> I'm not sure it's possible. (I'm not sure it's not.) Can you describe
> what you're really trying to do?
>
> Jesse
>

Some of my params update some external datasource which has sort of a
dynamic schema (different params for different roles, ACLs, params could
change etc..)
for this now I am doing the following in the template:

<%args>
$runtime_params
<%/args>

<%init>
  my $action = Jifty::web->new_action(class  => 'MyAction');
</%init>

% my @fields = sort {..}keys %$runtime_params
%  foreach my $field ( @fields  ) {
     $value = ...;
    <% $action->form_field( $field, default_value => $value,    
render_as => $runtime_params->{$field}{render_as})
....
% }

In the case of a 'Select' field, I couldn't give the available values to
the form_field method ( I had to override available_values in  MyAction ).
With form_field(), I cannot profit from the ajax
validation/canonicalization neither.

Thanks in advance,

          -salih