2009/3/5 Dan Dascalescu <ddascalescu+for...@gmail.com>:
[snip]
> 1. Is this the best way to achieve the goal of doing some DB-related
> validation in a callback? If so, I'll be happy to document this in the
> Validator::Callback.pm, which is painfully empty at the moment.
>
> 2. Is it best practice to put the callback information in the form
> config file, or to modify the form in the controller code?
To be honest, I don't think Callbacks are a very maintainable
approach, and I never use them.
For me, a normal application's directory would contain:
lib/HTML/FormFu/Constraint/MyApp/
lib/HTML/FormFu/Validator/MyApp/
lib/HTML/FormFu/Plugin/MyApp/
etc.
So the config file would just need something like:
validator: 'MyApp::UniqueURL'
And the class would be something like this:
package HTML::FormFu::Validator::MyApp::UniqueURL;
use strict;
use warnings;
use base 'HTML::FormFu::Validator';
sub validate_value {
my ( $self, $value, $params ) = @_;
my $c = $self->form->stash->{context};
return $c->model('DBIC::Urls')->validator_unique_url($value);
}
1;
It's not much setup once you've got your first to copy/paste from ++
it keeps the code out of the controller ++
and it's very reusable ++
Hope this helps!
Carl
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