[html-formfu] How do I set selected option programatically?

[Carl Franks]

2009/5/15 Dennis Daupert <ddaupert at gmail.com>:
> I found the documentation on setting a Select default,
> but not on how to set 'selected' on a select option
> on the fly.
>
> My yml config file configures three selects:
>
> =====================
> ---
> # indicator is the field that is used to test for form submission
> indicator: submit
> # Start listing the form elements
> auto_fieldset:
>   legend: Add Entry
> elements:
>    - type: Select
>      name: project_id
>      label: 'Projects (optional)'
>      empty_first: 1
>      model_config:
>         resultset: Projects
>         condition:
>            active: 1
>    - type: Select
>      name: status_id
>      label: Status
>      empty_first: 1
>      model_config:
>         resultset: Statuses
>         condition:
>            active: 1
>    - type: Select
>      name: assignee
>      label: Assignee
>      empty_first: 1
>      model_config:
>         resultset: Users
>         condition:
>            active: 1
> =====================
>
> I need to set options on the fly for those selects.
>
> In my Catalyst app, I have this code (attempting to select the
> option thru the default method. If this should work, I must
> have the format wrong.):
>
>     # Pre-populate selects
>     my $fieldset = $form->get_element({ type => 'Fieldset' });
>
>     my $proj_select = $fieldset->get_element({type => 'Select',
>                                               name => 'project_id'});
>     $proj_select->default($project_id) if $project_id;
>
>     my $stat_select = $fieldset->get_element({type => 'Select',
>                                               name => 'status_id'});
>     $stat_select->default($status_id) if $status_id;
>
>     my $assign_select = $fieldset->get_element({type => 'Select',
>                                                 name => 'assignee'});
>     $assign_select->default($assignee) if $assignee;
>
> I do have confirmation that the variables are populated:
> $project_id, $status_id, $assignee.

I'm not sure what you mean by 'on the fly', but, yes,
$field->default() should do this.

The most likely thing that comes to mind, is that this is intended for
use *before* the form is submitted for the first time.
That means $form->submitted() should be false - could that be the problem?

Also, just a minor thing - use $form->get_field().
Trying to use get_element() for this kind of thing just gets messy.

Carl