Today I Learned

hashrocket A Hashrocket project

Using `up_only` in ActiveRecord migrations

The change method on migrations is great so you don't have to specify up and down and if you just want to execute a simple sql update on up then you can use the up_only method:

  def change
    add_column :products, :draft, :boolean, default: true
    up_only do
      execute "update products set draft = false"
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