27 lines
748 B
Ruby
27 lines
748 B
Ruby
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class EncodeCandidateEmails < ActiveRecord::Migration[5.0]
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def change
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sql = "select id, email from candidates;"
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candidates = ActiveRecord::Base.connection.execute(sql).to_h
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candidates.each do |id, email|
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sql = if base64?(email)
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# going down - decrypt
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"UPDATE candidates set email = '#{CryptSerializer.load email}' WHERE id = #{id};"
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else
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# going up - encrypt emails
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"UPDATE candidates set email = '#{CryptSerializer.dump email}' WHERE id = #{id};"
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end
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ActiveRecord::Base.connection.execute(sql)
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end
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end
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private
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def base64? string
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Base64.urlsafe_decode64 string
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true
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rescue ArgumentError
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false
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end
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end
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