Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Simple Dependency Injection framework for Ruby
Ruby
branch: master

Fetching latest commit…

Cannot retrieve the latest commit at this time

Failed to load latest commit information.
lib
spec
.gitignore
.rspec
Gemfile
LICENSE
README.md
Rakefile
dependo.gemspec

README.md

Dependo

Dependo is a very simple Dependency Injection framework for Ruby. Some say you don't need dependency injection when you're using Ruby. Maybe they're right, but I've come across some places where I need it.

For example, in my apps using Sinatra and Sequel, I need to be able to log, using a single Logger instance, from both my Sinatra app and from within my Sequel models. I'm not about to pass that Logger around as a parameter anywhere, and I don't want to instantiate it in every class that needs to log.

So, injecting the Logger is the easiest, best solution.

Requirements/Installation

Dependo doesn't depend on anything. In test, it relies on rspec and either rcov (Ruby 1.8) or simplecov (Ruby 1.9).

Install the gem: gem install dependo-(version).gem

Running the tests:

rake spec

Building the gem:

rake gem:build

Install gem with Rake:

rake gem:install

Usage

Register

Dependo::Registry[:log] = Logger.new(STDOUT)

Include

This makes it easy to use your injected dependencies as instance methods:

class MyThing
    include Dependo::Mixin
end

thing = MyThing.new
thing.log.info "I'm logging!"

Extend

This makes it easy to use your injected dependencies as class methods:

class MyThing
    extend Dependo::Mixin
end

MyThing.log.info "I'm logging!"

License

See the LICENSE file. Licensed under the Apache 2.0 License

Something went wrong with that request. Please try again.