state_machine

https://github.com/pluginaweek/state_machine

Ruby

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

StateMachine::TransitionCollection#valid?

Is this a valid set of transitions?  If the collection was creating with
any +false+ values for transitions, then the the collection will be
marked as invalid.

Source | Google | Stack overflow

Edit

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

cd state_machine

open lib/state_machine/transition_collection.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-StateMachine--TransitionCollection-valid--for-pr

# Commit to git

git add lib/state_machine/transition_collection.rbgit commit -m "better docs for StateMachine::TransitionCollection#valid?"

# 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--TransitionCollection-valid--for-pr

hub pull-request

# Celebrate!