Lazyeval
Homepage: http://github.com/vitaly/lazyeval/
This GEM allows to call methods lazily. The actual work will not be performed until the result is used. There's no promise/force semantics, just a single call (or block) is stored and executed the first time the (lazy) result is accessed.
USAGE
simple lazy call
user = User.lazy.find(:first) # will not access a db
puts user.name # this will actually perform the find and then get the name from
# the result
example for a lazy block
user_name = User.lazy { |user| user.find(:first).user_name } # no db access
puts user_name # db will be accessed here
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Add tests for it. This is important so I don't break it in a future version unintentionally.
- Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request
NOTE: do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
Copyright
Copyright (c) 2009-2013 Vitaly Kushner. See LICENSE.txt for details.