ActiveMethod

Refactor your obscure method to a method object with ActiveMethod

Installation

Install the gem and add to the application's Gemfile by executing:

$ bundle add active_method

If bundler is not being used to manage dependencies, install the gem by executing:

$ gem install active_method

Usage

Refactor Foo#bar to Bar with ActiveMethod

class Foo
  def bar(a, b, c: , d:)
    puts "a: #{a}"
    puts "b: #{b}"
    puts "c: #{c}"
    puts "d: #{d}"

    buzz
  end

  def buzs
    puts 'buzz'
  end
end

Refactor to:

class Bar < ActiveMethod::Base
  argument :a
  argument :b, default: 2
  keyword_argument :c
  keyword_argument :d, default: 4

  def call
    puts "a: #{a}"
    puts "b: #{b}"
    puts "c: #{c}"
    puts "d: #{d}"

    foo.buzz
  end
end

class Foo
  include ActiveMethod

  active_method :bar
end

Bar.call(1)
# =>  a: 1
# =>  b: 2
# =>  c: nil
# =>  d: 4
# =>  buzz

Bar.call(1, 3)
# =>  a: 1
# =>  b: 3
# =>  c: nil
# =>  d: 4
# =>  buzz

Bar.call(1, 3, c: 6)
# =>  a: 1
# =>  b: 3
# =>  c: 6
# =>  d: 4
# =>  buzz

Bar.call(1, 3, c: 4, d: 5)
# =>  a: 1
# =>  b: 3
# =>  c: 4
# =>  d: 5
# =>  buzz

Work on module

class Hi < ActiveMethod::Base
  argument :name

  def call
    "Hi, #{name}"
  end
end

module Say
  include ActiveMethod

  active_method :hi, module_function: true
end

Say.hi('John')
# => "Hi, John"

Work as a class method

class BuildARobot < ActiveMethod::Base
  argument :name

  def call
    "#{robot_factory} build a robot called #{name}"
  end
end

class RobotFactory
  include ActiveMethod

  active_method :build_a_robot, class_method: true
end

RobotFactory.build_a_robot
# => "RobotFactory build a robot called B-2"

Development

bundle install
meval rake # Run test
meval -a rake # Run tests against all Ruby versions and Rails versions

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/hoppergee/active_method. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the ActiveMethod project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.