NAME

Workflow::Context - Data blackboard for Workflows, Actions, Conditions and Validators

SYNOPSIS

 # Create your own context and merge it with one that may already be
 # in a workflow
 
 my $context = Workflow::Context->new();
 $context->param( foo => 'bar' );
 $context->param( current_user => User->fetch( 'foo@bar.com' ) );
 $wf->context( $context );
 
 # In a Condition get the 'current_user' back out of the workflow's context
 
 sub evaluate {
     my ( $self, $wf ) = @_;
     my $current_user = $wf->context->param( 'current_user' );
     ...
 }
 
 # Set values directly into a workflow's context
 
 $wf->context->param( foo => 'bar' );
 $wf->context->param( news => My::News->fetch_where( 'date = ?', DateTime->now ) );

DESCRIPTION

Holds information to pass between your application and a Workflow, including its Actions, Conditions and Validators.

OBJECT METHODS

merge( $other_context )

Merges the values from $other_context into this object. If there are duplicate keys in this object and $other_context, $other_context wins.

SEE ALSO

Workflow

COPYRIGHT

Copyright (c) 2003-2006 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.

AUTHORS

Jonas B. Nielsen (jonasbn) <jonasbn@cpan.org>, current maintainer.

Chris Winters <chris@cwinters.com>, original author.