Re: [html-formfu] How to best pass the resultset object to DBIC validator callbacks?

[Wolfgang Kinkeldei]

Hi,

Am 04.06.2009 um 21:40 schrieb Ascii King:

This Validator references a bit of code (validator_unique_url) that presumably calls the database to check to see if the value is unique. Would someone be able to show what this code would actually look like? I have the rest of the validator example from this thread.

Then in MyApp::Schema::ResultSet::Urls,

use base qw/MyApp::Schema::Base::ResultSet/;
sub validator_unique_url {
  my $value = shift;
  .... how do I get at the DB?
}

  - type: Text
    name: login
    label: Login
    constraints:
      - Required
      - type: Callback
        callback: 'DemoApp::Controller::Login::login_check'
        message: Already in use
    filters:
      - TrimEdges



sub login_check :Private {
    my $value = shift;

    my $result = DemoApp->model('DB::Person')
                        ->search({login => $value})
                        ->single();

    return $result ? 0 : 1;
}

I recently did almost the same and it works well. My relevant part of the form looks like this: my callback-sub is like that -- you can obtain the resultset object using your Application class name. DB is my Schema, Person my table. if you look into HTML::FormFu::Validator::Callback, you can see that the validator coderef is called with the entered value only.

Also, in the following sub, what would be an example of a context? Would it be 'MyApp::Schema' or 'MyApp::Schema::TableName'?

  sub validate_value {
      my ( $self, $value, $params ) = @_;

      my $c = $self->form->stash->{context};

      return $c->model('DBIC::Urls')->validator_unique_url($value);
  }

Regards,

Wolfgang Kinkeldei

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