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

Note on Patches/Pull Requests

• Fork the project.
• Make your feature addition or bug fix.
• Add tests for it. This is important so I don't break it in a future version unintentionally.
• Commit, 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)
• Send me a pull request. Bonus points for topic branches.

Copyright

Copyright (c) 2010 Vitaly Kushner. See LICENSE for details.