Perl Fomfu:HTML:：FormFu:：Constraint:：Callback

我想检查“开始”日期字段是否与“结束”日期字段不同。所以我有这个文件：

config.yml：

type: Text
      name: to
      label: To
      constraints:
          - type: DateTime
            parser:
                strptime: '%Y-%m-%d %H:%M:%S'
          - type: Callback
            callback: "check_date"

type: Text
      name: to
      label: To
      constraints:
          - type: DateTime
            parser:
                strptime: '%Y-%m-%d %H:%M:%S
      validators:
        - '+folder::Validators::Validator' # don't  forget the '+' ;)

my_controller.pm：

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

        return 1; //juste fel testing
}

sub index : Path :Args(0) :FormConfig('config.yml'){
     ..........

     my $field = $form->get_element({type => 'Text', 'name' => 'to'});
      $field->constraint({
        type => 'Callback',
        callback =>  \&check_date,
    });


    ...........
}

---

但是它没有检测到“check_date”函数。这是答案：我使用了“validators”而不是“constrant”：我遵循了这个文档

config.yml：

type: Text
      name: to
      label: To
      constraints:
          - type: DateTime
            parser:
                strptime: '%Y-%m-%d %H:%M:%S'
          - type: Callback
            callback: "check_date"

type: Text
      name: to
      label: To
      constraints:
          - type: DateTime
            parser:
                strptime: '%Y-%m-%d %H:%M:%S
      validators:
        - '+folder::Validators::Validator' # don't  forget the '+' ;)

Validator.pm（我有validate start和end date表单字段；））