TIL, 2017-03-29, THE MYSTERY OF THE PASTE IN VIM

THE MYSTERY OF THE PASTE IN VIM. Seriously this has bothered me for so long. If you paste stuff from outside and they are formatted, you need to :set paste, paste, then :set nopaste after. THANK YOU BASED http://vim.wikia.com/wiki/Toggle_auto-indenting_for_code_paste.
ActiveSupport: instance_values. Reference
Jekyll themes are a thing. Jekyll also needs some tweaks to make sure included posts are also compiled to HTML from markdown.
Made my own policy classes hehe.
nil.inspect for human readable specs.

module Policies
  class BasePolicy
    attr_reader :context

    def initialize(context)
      @context = context
    end

    def call
      return_error unless valid?
    end

    protected

    def return_error
      error_class.new(error_message)
    end

    def valid?
      raise 'Must implement #valid'
    end

    def error_class
      raise 'Must implement #error_class'
    end

    def error_message
      raise 'Must implement #error_message'
    end
  end
end

module ImplementsPolicies
  def pre_method_hooks
    policies.map do |klass|
      proc { klass.new(context).call }
    end
  end
end