validating-workflow

Validating-Workflow is a finite-state-machine-inspired API for modeling and interacting with what we tend to refer to as 'workflow'. * nice DSL to describe your states, events and transitions * robust integration with ActiveRecord and non relational data stores * various hooks for single transitions, entering state etc. * convenient access to the workflow specification: list states, possible events for particular state * state and transition dependent validations for ActiveModel