Workflow::Validator::HasRequiredField - Validator to ensure certain data are in the context
This documentation describes version 1.61 of this package
# Validator is created automatically when you mark a field as
# 'is_required=yes' in the action, such as:
This is a simple validator to ensure that each of the fields you have marked with the 'is_required' property as 'yes' are indeed present before the associated action is executed.
for instance, given the configuration:
An action executed with such a context:
my $wf = FACTORY->get_workflow( $id );
$wf->context( username => 'foo' );
$wf->context( office => 'Ottumwa' );
$wf->execute_action( 'CreateUser' );
Would fail with a message:
The following fields require a value: email
You normally do not need to configure this validator yourself. It gets generated automatically when the Action configration is read in. However, if you do need to create it yourself:
Note that we do not try to match the value in the context against a set of known values or algorithm, just see if the value is defined -- using the Perl notion for defined rather than true/false, which means '0' and the empty string will both be valid.
Validates whether a given set of required fields are defined.
Takes two parameters: a workflow object and an array of names of fields.
The provided fields are matched against the workflow in question and Workflow::Exception's are thrown in case of missing fields.
Copyright (c) 2003-2022 Chris Winters. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Please see the LICENSE
Please see Workflow
To install Workflow, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.