20100811211216_set_published_articles_source.rb 319 Bytes
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class SetPublishedArticlesSource < ActiveRecord::Migration
  def self.up
    update("update articles set source = (select source from articles origin where origin.id = articles.reference_article_id) where articles.type = 'PublishedArticle';")
  end

  def self.down
    say "this migration can't be reverted"
  end
end