KamilLelonek · December 8, 2014 08:36
diff --git a/gravatar_helper.rb b/gravatar_helper.rb
 require 'digest/md5'

 module GravatarHelper
  # previous implementation
  # ...

  def gravatar_for_email(email)
    self.class.gravatar_for_email(email)
  end
 end
diff --git a/usage.rb b/usage.rb
 [0] (pry) main: 0> user = User.new('[email protected]');
 [1] (pry) main: 0> GravatarHelper.gravatar_for_email(user.email)
 => 'http://www.gravatar.com/avatar/b58996c504c5638798eb6b511e6f49af'
diff --git a/user.rb b/user.rb
 class User
  attr_reader :email

  def initialize(email)
    @email = email
  end
 end
	require 'digest/md5'

	module GravatarHelper
	# previous implementation
	# ...

	def gravatar_for_email(email)
	self.class.gravatar_for_email(email)
	end
	end
	[0] (pry) main: 0> user = User.new('[email protected]');
	[1] (pry) main: 0> GravatarHelper.gravatar_for_email(user.email)
	=> 'http://www.gravatar.com/avatar/b58996c504c5638798eb6b511e6f49af'