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Encrypting database columns with Rails 7

In Rails 7, Active Record includes the option to encrypt database columns. To start run bin/rails db:encryption:init, then copy the resulting keys to your app’s credentials.yml. Now in your model, you can tell Active Record to encrypt a column by using the encrypts which takes a db column name as an argument. For example:

class User < ApplicationRecord
  encrypts :super_secret_data
end

Active record will automatically decrypt the data upon retrieval. See more here.

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