Create a Unique Attribute

I have this AshPostgres resource and want to make sure the the title is unique. How can I do that?

  attributes do
    uuid_primary_key :id

    attribute :title, :string do
      allow_nil? false
    end
  end

  attributes do
    uuid_primary_key :id

    attribute :title, :string do
      allow_nil? false
    end
  end

3 Replies

identities do
  identity :unique_title, [:title]
end

identities do
  identity :unique_title, [:title]
end

you'll need to generate and perform a migration for it to take effect I think

Thank you!

Ash HQ

Read the "Identities" guide on Ash HQ