---
name: "Validation::Class::Directive::Filters"
section: "3pm"
platform: "linux"
package: "libvalidation-class-perl"
version: "7.900059-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Validation::Class::Directive::Filters"
---

# Validation::Class::Directive::Filters(3pm)

Filters Directive for Validation Class Field Definitions

## NAME

Validation::Class::Directive::Filters - Filters Directive for Validation Class Field Definitions

## VERSION

version 7.900059

## SYNOPSIS

```
    use Validation::Class::Simple;
    my $rules = Validation::Class::Simple->new(
        fields => {
            user_ident => {
                filters => 'trim'
            }
        }
    );
    # set parameters to be validated
    $rules->params->add($parameters);
    # validate
    unless ($rules->validate) {
        # handle the failures
    }
```

## DESCRIPTION

Validation::Class::Directive::Filters is a core validation class field directive that specifies which filter should be executed on the associated field.

- •

  alternative argument: an-array-of-options

- •

  option: trim e.g. remove leading/trailing spaces

- •

  option: strip e.g. replace multiple spaces with one space

- •

  option: lowercase e.g. convert to lowercase

- •

  option: uppercase e.g. convert to uppercase

- •

  option: titlecase e.g. uppercase first letter of each word; all else lowercase

- •

  option: autocase e.g. uppercase first letter of each word

- •

  option: capitalize e.g. uppercase the first letter

- •

  option: alphanumeric e.g. remove non-any alphanumeric characters

- •

  option: numeric e.g. remove any non-numeric characters

- •

  option: alpha e.g. remove any non-alpha characters

- •

  option: decimal e.g. preserve only numeric, dot and comma characters

  This directive can be passed a single value or an array of values:

  ```
      fields => {
          user_ident => {
              filters => ['trim', 'strip']
          }
      }
  ```

## AUTHOR

Al Newkirk \<anewkirk@ana.io\>

## COPYRIGHT AND LICENSE

This software is copyright (c) 2011 by Al Newkirk.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.