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Validation::Class::Directive::Filters(3pm) User Contributed Perl Documentation Validation::Class::Directive::Filters(3pm)


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


version 7.900057


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


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']


Al Newkirk <>


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.

2017-11-24 perl v5.26.1