state_machine

https://github.com/pluginaweek/state_machine

Ruby

Adds support for creating state machines for attributes on any Ruby class

StateMachine::Event#draw

Draws a representation of this event on the given graph.  This will
create 1 or more edges on the graph for each branch (i.e. transition)
configured.

Configuration options:
* <tt>:human_name</tt> - Whether to use the event's human name for the
  node's label that gets drawn on the graph

Source | Google | Stack overflow

Edit

git clone [email protected]:pluginaweek/state_machine.git

cd state_machine

open lib/state_machine/event.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-StateMachine--Event-draw-for-pr

# Commit to git

git add lib/state_machine/event.rbgit commit -m "better docs for StateMachine::Event#draw"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-StateMachine--Event-draw-for-pr

hub pull-request

# Celebrate!