gist: 132597


  
    
      application_helper.rb
    
    
      
      
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                # A handy way to display lists from  collection
  def list(stuff, options = {}, &block)
    return content_tag(:p, "None") if stuff.nil? || stuff.empty?
    content_tag(:ul, stuff.map { |thingie| content_tag(:li, yield(thingie)) }, options)
  end