gistfile1.rb

# The best approach depends on how you define a blog entry. If you think
# of a blog article the same way I do, that means "all pages with a date".
#
# In Ruby you can re-open a class and redefine its methods. Normally, this
# would be a horrific thing to do (as others could be very confused by
# your code) but in the context of a typical Nesta site I don't think it's
# particularly bad news, and its very convenient.
#
# So, in app.rb, add this (which is very similar to the default):

module Nesta
  class Page
    def template
      default = date.nil? ? 'layout_blog' : 'layout'
      (metadata('layout') || default).to_sym
    end
  end
end