This week in #dev (Feb 21, 2025)

Welcome to another edition of This Week in #dev, a series of posts where we bring some of our most interesting Slack conversations to the public.

URL-Safe serialization for any Ruby object

Matheus Richard shares a gem called Universal ID that can serialize any Ruby object into a URL-safe string. This is a generalization of Rails’ Global ID.

uri = URI::UID.build(:demo).to_s
#=> "uid://universalid/iwKA1gBkZW1vAw#CwWAkccHf6ZTeW1ib2wD"

Configuring Rails Generators to Use FactoryBot with Minitest

Louis Antonopoulos provides guidance for Minitest users on configuring Rails’ generators to use FactoryBot instead of fixtures.

To set up:

• Add gem "minitest-rails", "~> 8.0.0" to the :test group in your Gemfile, matching your Rails version.
• Update config/application.rb with:

# Use FactoryBot instead of fixtures when using Rails generators
config.generators do |g|
  g.test_framework :minitest, spec: false, fixture: false
  g.fixture_replacement :factory_bot, dir: "test/factories"
end

Running rails g model tomato will now:

• Add a :tomato factory to test/factories.rb
• Avoid generating test/fixtures/tomatoes.yml

Thanks

This edition was brought to you by Louis Antonopoulos and Matheus Richard. Thanks to all contributors! 🎉