I want to prepend a string to the uuid generated by PostgreSQL's gen_random_uuid() to use as the uuid for one of my models (it won't be the primary key).
Think like Stripe's price and customer ids - "price_xxxx..."
and "cus_xxxx..."
Currently I'm using gen_random_uuid() like so:
t.uuid "uuid", default: -> { "gen_random_uuid()" }, null: false
Is it possible to do something like,
t.uuid "uuid", default: -> { "xxx" + "gen_random_uuid()" }, null: false
?
Solving it at the model level could be an option
class MyModel < ApplicationRecord
attribute :uuid, default: -> { "xxx_#{SecureRandom.uuid}" }
end