Avoid several `.try` in your rails code

try_chain.rb

# https://www.mobomo.com/2010/11/calling-methods-on-potential-nil-objects-in-rails/
# http://tony.pitluga.com/2011/08/08/destructuring-with-ruby.html

module ActiveSupport 
  refine Object do
    def try_chain(*args)     
      args.size > 1 ? eval("self.try(args[0]).try_chain(#{args[1..-1].inspect[1..-2]})") : self.try(args[0])   
    end 
  end 
end 


# sample usage 

class FoosControlloer < ApplicationsController 
  using ActiveSupport 
  
  def baz
    "Don'tRepeatYourselfs ".try_chain(:underscore, :capitalize, :chop!, :chop!) 
  end 
end