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class Hoge
  def call_with_args(message)
    p messge
  end
  
  def call_without_args
    p "引数なしのメソッド"
  end
end

hoge = Hoge.new
method = bol ? [:call_with_args, "引数あり" ] : [:call_without_args]
hoge.send(*method)

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class ApiController < ActionController::Base
  rescue_from Exception, with: :system_error 

  def system_error(ex)
    logger.error(ex.message)
    logger.error(ex.backtrace)
    render json: @data , :status => 500
  end
end

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PROMPT="$PROMPT"'$([ -n "$TMUX" ] && tmux setenv TMUXPWD_$(tmux display -p "#D" | tr -d %) "$PWD")'

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# config.label_text = lambda { |label, required| "#{required} #{label}" }

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config.label_text = lambda { |label, required| "#{label} #{required}" }

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ja:
  simple_form:
    "yes": 'Yes'
    "no": 'No'
    required:
      html: '<abbr title="required">[必須]</abbr>'

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#Gemfile
gem "erb2haml", :group => :development

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bundle install   
rake haml:convert_erbs
 
ERROR:  Could not find html2haml in your PATH. Aborting.

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#Gemfile
group :development do
  gem 'html2haml'
  gem 'erb2haml'
end

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rake haml:convert_erbs
Looking for ERB files to convert to Haml...
Converting: app/views/devise/confirmations/new.html.erb... Done!
Converting: app/views/devise/mailer/confirmation_instructions.html.erb... Done!
Converting: app/views/devise/mailer/reset_password_instructions.html.erb... Done!
Converting: app/views/devise/mailer/unlock_instructions.html.erb... Done!
Converting: app/views/devise/passwords/edit.html.erb... Done!
Converting: app/views/devise/passwords/new.html.erb... Done!
Converting: app/views/devise/registrations/edit.html.erb... Done!
Converting: app/views/devise/registrations/new.html.erb... Done!
Converting: app/views/devise/sessions/new.html.erb... Done!

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[Wed Feb 20 2013 17:35:57 GMT+0900 (JST)] DEBUG nack worker 2833 spawned
[Wed Feb 20 2013 17:35:57 GMT+0900 (JST)] WARNING Could not find i18n-0.6.1 in any of the sources
[Wed Feb 20 2013 17:35:57 GMT+0900 (JST)] WARNING Try running `bundle install`.
[Wed Feb 20 2013 17:35:57 GMT+0900 (JST)] DEBUG nack worker exited

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/Users/user_name/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.

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rvm pkg install libyaml

Fetching yaml-0.1.4.tar.gz to /Users/user_name/.rvm/archives
Extracting yaml to /Users/user_name/.rvm/src/yaml-0.1.4
Configuring yaml in /Users/user_name/.rvm/src/yaml-0.1.4.
Compiling yaml in /Users/user_name/.rvm/src/yaml-0.1.4.
Installing yaml to /Users/user_name/.rvm/usr

Please note that it's required to reinstall all rubies:
  rvm reinstall all --force

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rvm reinstall all --force

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gem install http_machinegun

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# 一回だけgetリクエスト発行
http_machinegun fire -u http://localhost

# 80番ポートにabcdeという文字列のpostリクエストを10回とばす
http_machinegun fire -u http://localhost -p 80 -t 10  -d abcde