On 28 January 2010 16:37, Oskari 'Okko' Ojala <okko+for...@frantic.com> wrote:
> Consider this:
>
> - type: Checkbox
> name: email_permission
> constraints:
> - type: Callback
> message: 'You cannot turn this off when you have pending orders.'
> name: orders_blocking
> - type: Callback
> message: 'You cannot turn this off when you have pending questions.'
> name: questions_blocking
>
>
> I'd like to reference one of multiple callbacks by name to be able to define
> the error messages in YAML and to define the complicated database checks in
> code. The name would be needed to match the correct Callback, like
>
> $form
> ->get_constraint({
> name => 'orders_blocking',
> type => 'Callback',
> })
> ->force_errors(1);
>
>
> but at the moment name is not allowed for Callbacks:
> "cannot use name() as a setter at ..../_Field.pm"
>
> Is there some other method to match a correct Callback if there are many?
Constraints already have a name() method - it just returns:
$constraint->field->name()
You could achieve this with:
package HTML::FormFu::Constraint::My::Callback;
use base 'HTML::FormFu::Constraint::Callback';
__PACKAGE__->mk_item_accessors( 'my_name' );
1;
Which you'd use like:
constraints:
- type: 'My::Callback'
message: 'You cannot turn this off when you have pending orders.'
my_name: orders_blocking
Carl
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