state_machine

https://github.com/pluginaweek/state_machine

Ruby

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

StateMachine::NodeCollection#update

Updates the indexed keys for the given node.  If the node's attribute
has changed since it was added to the collection, the old indexed keys
will be replaced with the updated ones.

Source | Google | Stack overflow

Edit

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

cd state_machine

open lib/state_machine/node_collection.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-StateMachine--NodeCollection-update-for-pr

# Commit to git

git add lib/state_machine/node_collection.rbgit commit -m "better docs for StateMachine::NodeCollection#update"

# 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--NodeCollection-update-for-pr

hub pull-request

# Celebrate!