state_machine

https://github.com/pluginaweek/state_machine

Ruby

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

StateMachine::TransitionCollection#perform

Runs each of the collection's transitions in parallel.

All transitions will run through the following steps:
1. Before callbacks
2. Persist state
3. Invoke action
4. After callbacks (if configured)
5. Rollback (if action is unsuccessful)

If a block is passed to this method, that block will be called instead
of invoking each transition's action.

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-perform-for-pr

# Commit to git

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

# 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-perform-for-pr

hub pull-request

# Celebrate!