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# Framework
# ===========================================
module ContextAccessor
  def context
    Thread.current[:context]
  end
end

module Context
  include ContextAccessor

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# The code can be seen here: gist.github.com/2711153 (it does use a small bit 
# from the Rails framework, just for the persisted LedgerEntry and to create 
# attribute readers). Some notes about the code: 
#    - Each Role is a class, having only (public) class methods. To help 
#    avoid them being called outside of their Context, a Role Method only has 
#    access to its associated object while the role's context is the 
#    current/active global context. 
#    - Following Trygve's approach: "Roles are referenced by name. If I mean 
#    the Role I write the role name, not 'self'." 
#    - For referencing the object playing a role, I've overridden the Role's 

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# Expand print panel by default
defaults write NSGlobalDomain PMPrintingExpandedStateForPrint -bool true

# Disable the “Are you sure you want to open this application?” dialog
defaults write com.apple.LaunchServices LSQuarantine -bool false

# Enable subpixel font rendering on non-Apple LCDs
defaults write NSGlobalDomain AppleFontSmoothing -int 2

# Disable press-and-hold for keys in favor of key repeat

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#include and #extend have same effect on instances as inheritance

Let's say we have this

module A; end
module B; end
class C; end
class D < C; end

Then we modify instance

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class DashboardPresenter < ClassicPresenter::Base

  def navigation
    if context.controller_name == 'vendors'
      context.render 'shared/dashboard/vendor_navigation'
    end
  end

end

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-----------------------------------------
Boilerplate code (in rails_app_root/lib)
-----------------------------------------

module ContextAccessor
  def context
    Thread.current[:context]
  end
end

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def screenshot
  require 'capybara/util/save_and_open_page'
  now = Time.now
  p = "/#{now.strftime('%Y-%m-%d-%H-%M-%S')}-#{rand}"
  Capybara.save_page body, "#{p}.html"
  path = Rails.root.join("#{Capybara.save_and_open_page_path}" "#{p}.png").to_s
  page.driver.render path
  Launchy.open path
end

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class Organization
  def to_param
    "42"
  end
  def saved?
    rand > 0.5
  end
end

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Dear Rubyists,

I just lost a contract because of my code in a Rails project.

The specific code in question is related to a "posting a comment" feature. Here are the details:

In this project, "posting a comment" does not simply entail inserting a row into the database. It involves a procedure to yes, insert a row, but also detect its language, check for spam, send emails, and "share" it to Twitter and Facebook. I believe this algorithm should be encapsulated. I do not believe it belongs in a controller or a model. I do not believe Active Record callbacks should be used.

The "senior developer", whom is the stake holder's right hand man, said this:

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Sete Atitudes para Hackear a Indústria de Software

By Klaus Wuestefeld

1) Torne-se excelente.

Seja realmente bom em alguma coisa. Não fique só choramingando ou
querendo progredir às custas dos outros. Não pense q pq vc sentou 4
anos numa faculdade ouvindo um professor falar sobre software q vc
sabe alguma coisa. Jogador de futebol não aprende a jogar bola tendo