RubyCademy @RubyCademy
🎓 Learn Ruby → https://t.co/W5onCJ3v7Z 🛠️ Boilerplate → https://t.co/ElyZnSyYTh launchkit.codes Joined October 2018-
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@RubyCademy rails 8 launchkit with agents.md so coding agents actually understand the boring stuff
NOBODY CODES ANYMORE. So I built LaunchKit for the agents too! Rails 8, all the boring stuff already built, full documentation, and an AGENTS.md that helps your coding agent understand the entire codebase. launchkit.codes
In Rails 8, you can now access your notes directly in the browser by visiting `GET /rails/info/notes`! Small details like this are why we love @rails! 💚
✨ RUBYCADEMY CARDS ✨ Rails has a `halted_callback_hook` that fires whenever a before_* callback halts. 🤩 Super handy for debugging and logging! #rubyonrails
Two Rails 8 defaults that don't compose. rate_limit counts in your cache store. Solid Cache increments under SELECT ... FOR UPDATE, which locks nothing when there's no row yet. First hit from a new IP, two at once, both write 1. A limit of 10 admits 11. launchkit.codes/yield/rails-wi…
Rails 7.1 added a neat little upgrade to rails routes --expanded: Source Locations! 💚 Now you can instantly see exactly where each route is defined in your codebase. #rubyonrails
Ruby makes it so easy to keep user input within a safe range using `clamp()`! 💚 Perfect for forcing a value between MIN and MAX without extra ifs. 🔗 launchkit.codes
Can You Solve This Ruby Interview Question? 🔗 youtube.com/watch?v=q9lxGw…
Helpers like these are exactly why we love Rails! 💚 #rubyonrails
Done in just 7 lines of Ruby! 🤯 🔗 youtube.com/watch?v=PahRQG…
Rails 8 added `except_on:` for validations! 🤩 A clean way to say "always validate, except in this context." It is simpler than `if:` or `unless:` and perfect for drafts, multi-step forms, or any workflow where some fields can be missing! 🔗 launchkit.codes
Great question! 💚 Yep, it composes with custom contexts too. `except_on:` accepts a symbol or an array of contexts, just like `on:`. So you can do `except_on: [:draft, :some_custom_context]`. Conceptually, it’s the inverse of `on:`: the validation runs in every context except the ones you explicitly exclude. That’s what makes it nice for draft workflows. Hope this helps! 🙏
One of my favorite additions to Rails 7.1 is that you can now alias columns in `select` with a hash instead of raw SQL! 🤩 🔗 launchkit.codes
When your business rule says "exactly one record must exist", Rails has built-in methods to guarantee it. That’s what `find_sole_by` is built for! 🤩 🔗 launchkit.codes
Most SaaS ideas fail before launch, not because they’re bad, but because the founder got bored building auth and billing. 🔗 launchkit.codes
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