036_add_published_field_to_article.rb
608 Bytes
class AddPublishedFieldToArticle < ActiveRecord::Migration
def self.up
add_column :articles, :published, :boolean, :default => true
execute('update articles set published = (1>0)')
add_column :article_versions, :published, :boolean, :default => true
end
def self.down
if self.select('select id from articles where not published').size > 0
raise ActiveRecord::IrreversibleMigration, 'cannot remove published column, there are articles marked as not published'
else
remove_column :articles, :published
remove_column :article_versions, :published
end
end
end