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dry-struct v1.3.0 Release Notes

Release Date: 2020-02-10 // about 4 years ago

  • ➕ Added

    • Nested structures will reuse type and key transformations from the enclosing struct (@flash-gordon)
      class User < Dry::Struct
    transform_keys(&:to_sym)

    attribute :name, Types::String
    attribute :address do
      # this struct will inherit transform_keys(&:to_sym)
      attribute :city, Types::String
    end

    # nested struct will _not_ transform keys because a parent
    # struct is given
    attribute :contacts, Dry::Struct do
      attribute :email, Types::String
    end
  end
    • Dry::Struct::Constructor finally acts like a fully-featured type (@flash-gordon)
    • 0️⃣ Dry::Struct.abstract declares a struct class as abstract. An abstract class is used as a default superclass for nested structs (@flash-gordon)
    • Dry::Struct.to_ast and struct compiler (@flash-gordon)
    • Struct composition with Dry::Struct.attributes_from. It's more flexible than inheritance (@waiting-for-dev + @flash-gordon)
      class Address < Dry::Struct
    attribute :city, Types::String
    attribute :zipcode, Types::String
  end

  class Buyer < Dry::Struct
    attribute :name, Types::String
    attributes_from Address
  end

  class Seller < Dry::Struct
    attribute :name, Types::String
    attribute :email, Types::String
    attributes_from Address
  end

    🔄 Changed

    • 📇 [internal] metadata is now stored inside schema (@flash-gordon)

    Compare v1.2.0...v1.3.0