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KensoDev/nil_user.rb

Created September 6, 2012 12:28
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nil_user.rb
class NilUser
def display_name
"Uknown user"
end
end
Raw
post.rb
class Post < ActiveRecord::Base
belongs_to: user, nil_class: NilUser
end
@krupenik
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krupenik commented Sep 9, 2012

imo you've just overlooked the purpose of the null object pattern and/or the availability of #try in rails.

@sobrinho
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class Post < ActiveRecord::Base
  belongs_to :user

  def author
    user.try(:name)
  end
end

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