Using custom type in schema

1

I’m trying to define a custom type to be used in multiple schemas but can’t get the validations to work. When I define the rules directly, errors are produced as expected. When I define a custom type, the rules provided in the type do not produce errors. What am I’m doing wrong here? Any help would be greatly appreciated.

module Types
  include Dry::Types()

  SSN = Types::Strict::String.constrained(size: 9, format: /\d{9}/)
end

module Schemas
  SsnSearch = Dry::Schema.Params do
    # vvv THIS WORKS vvv
    # required(:ssn).filled(:string, size?: 9, format?: /\d{9}/)

    # vvv THIS FAILS on "must be 9 characters" and "must be only numeric" vvv
    required(:ssn).filled(Types::SSN)
  end
end

RSpec.describe Schemas::SsnSearch do
  specify "ssn is required" do
    schema = described_class.call({})

    expect(schema.errors.fetch(:ssn)).to include(/missing/)
  end

  specify "ssn is required" do
    schema = described_class.call(ssn: nil)

    expect(schema.errors.fetch(:ssn)).to include(/must be filled/)
  end

  specify "ssn must be a string" do
    schema = described_class.call(ssn: 123456789)

    expect(schema.errors.fetch(:ssn)).to include(/must be a string/)
  end

  specify "ssn must be 9 characters" do
    schema = described_class.call(ssn: "1" * 8)

    expect(schema.errors.fetch(:ssn)).to include(/must be 9/)
  end

  specify "ssn must be only numeric characters" do
    schema = described_class.call(ssn: "12E4S6789")

    expect(schema.errors.fetch(:ssn)).to include(/format/)
  end
end
2

Works for me. Make sure you’re using latest versions of the gems.

3

That was it! Thanks.