DRY up kwargs using `with_options`

Rails has a really awesome helper to DRY up code which makes use of much of the same kwargs. It’s called with_options and is used like this:

class Account < ActiveRecord::Base
  has_many :customers, dependent: :destroy
  has_many :products,  dependent: :destroy
end

# Becomes this with `with_option`

class Account < ActiveRecord::Base
  with_options dependent: :destroy do
    has_many :customers
    has_many :products
  end
end

Your code is now a lil more DRY and its easier to add, or remove, pesky kwargs as needed.

Another quick example:

class AuthenticatedController < ApplicationController
  before_action :logged_in?,         only: [:show, :edit]
  before_action :create_paper_trail, only: [:show, :edit]

  # ...
end

# Becomes this with `with_option`

class AuthenticatedController < ApplicationController
  with_options only: [:show, :edit] do
    before_action :logged_in?
    before_action :create_paper_trail
  end

  # ...
end

Today I Learned

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DRY up kwargs using `with_options`