state_machine

https://github.com/pluginaweek/state_machine

Ruby

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

StateMachine::Transition#pausable

Runs a block that may get paused.  If the block doesn't pause, then
execution will continue as normal.  If the block gets paused, then it
will take care of switching the execution context when it's resumed.

This will return true if the given block halts for a reason other than
getting paused.

Source | Google | Stack overflow

Edit

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

cd state_machine

open lib/state_machine/transition.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-StateMachine--Transition-pausable-for-pr

# Commit to git

git add lib/state_machine/transition.rbgit commit -m "better docs for StateMachine::Transition#pausable"

# 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--Transition-pausable-for-pr

hub pull-request

# Celebrate!