[html-formfu] set multiple values to hidden element?

[Hu Hailin]

Hi,

Wow, I didn't know the part of that.
How kind of you, Carl.

Finally, I decided to add hidden fields dynamically in perl codes like this:

my $form = $c->stash->{ form };
my $position = $form->get_element({ type => 'Submit'});
my @hidden = qw( foo bar );
foreach my $hidden ( @hidden ) {
  for ( $c->req->param( $hidden ) ) {
    my $element = $form->element({ type => 'Hidden', name => $hidden,
value=> $_ });
    $form->insert_after( $element, $position );
  }
}

I would build urls according to hidden fields' value using jQuery and
I think multiple value field is easier to handle.

Thank you all the same.

On Tue, Jun 22, 2010 at 6:19 PM, Carl Franks <fireartist at gmail.com> wrote:
> Hi,
>
> There's already a HTML::FormFu::Filter::Spit that can deserialize a
> submitted value.
> e.g, this will turn "a,b,c" into a perl array [ 'a', 'b', 'c' ].
>    filter:
>        - type: Split
>          regex: ','
>
> It would be simple to write a custom Deflator that could do the
> serialization for you...
>
> package MyApp::FormFu::Deflator::JoinIDs
> use base 'HTML::FormFu::Deflator';
> use HTML::FormFu::Constants qw( $EMPTY_STR );
> use Try::Tiny;
>
> sub deflator {
>    my ( $self, $value ) = @_;
>
>    return if !defined $value || $value eq $EMPTY_STR;
>
>    my $flat_value;
>
>    try {
>        $flat_value = join ',', @$value;
>    } catch {
>        return $value;
>    };
>
>    return $flat_value;
> }
> 1;
>
> If you add that deflator to the Hidden field, it would let you do:
>    $field->default( \@department_ids );
>
> Carl
>
>
> On 22 June 2010 09:45, Hu Hailin <i at h2l.name> wrote:
>> Hi,
>>
>> Let me try to make an example:
>>
>> a employee search page and can be searched by department.
>> Suppose there are hundreds of departments, showing a very long
>> multiple selectable select element seems not a good idea.
>> I try to make the page only take departments' id from query and
>> display the departments' info in the page.
>>
>> Even if use a block element, hundreds of departments info have to be
>> listed in page, right?
>>
>> Well, it seems I have to serialize data...
>>
>> Thank you, guys.
>>
>> On Tue, Jun 22, 2010 at 5:08 PM, Carl Franks <fireartist at gmail.com> wrote:
>>> Hi,
>>>
>>> A hidden field won't support multiple values, so you'd need to
>>> serialize them yourself - for example with JSON.
>>>    $field->default( encode_json( $value ) );
>>>
>>> I'd recommend though, just using Block elements, as it's very easy to
>>> attach IDs or class-names, which your JavaScript can target to
>>> show/hide the blocks.
>>>
>>> Carl
>>>
>>>
>>> On 22 June 2010 08:19, Hu Hailin <i at h2l.name> wrote:
>>>> Hi
>>>>
>>>> My situation is that I have so large a form that I try to split some
>>>> condition out to display them in a collapsible div with javascript.
>>>> So I am trying to pass data using Element::Hidden, but it accepts
>>>> first value and fills it in form in multiple values' case.
>>>> I also glanced at Element::Repeatable which seems not the one I want...
>>>>
>>>> Yes, it might be implemented using blocks but a little too complex.
>>>> Any advice for implementing a repeatable hidden element?
>>>>
>>>> Thanks.
>>>> --
>>>> islue
>>>>
>>>> _______________________________________________
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>>>> http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/html-formfu
>>>>
>>>
>>> _______________________________________________
>>> HTML-FormFu mailing list
>>> HTML-FormFu at lists.scsys.co.uk
>>> http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/html-formfu
>>>
>>
>>
>>
>> --
>> islue
>>
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>>
>
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-- 
islue