Holm @judofyr@ruby.social

thought for today:

Form field validation is very different to error cases in business logic.

validates :password, length: { minimum: 8 }
validates :email, uniqueness: true

These two validations appear to be the same kind of thing, but are actually very different in terms of performance, correctness (race conditions), dependencies, etc.

Rails does not differentiate, so we slap messages on `x.errors[:base]` as a bandaid solution, because there is no proper place to put them.

🔍 Different people read code differently. Some people prefer a top-down approach, while others prefer a bottom-up approach.

Top-down readers prefer understanding the broader picture before diving into the details of what’s happening.

Bottom-up readers don’t really care about the big picture at first - they prefer reading all the details up front. They construct their mental model as they go through them.

Which type of code reader are you?

Turn children into orphans:

"👨‍👩‍👧‍👦".chars.last(3).join

# => "👧‍👦"

Full writeup on my destructuring experiment in Ruby:

https://medium.com/@baweaver/destructuring-in-ruby-9e9bd2be0360

💬 Try to avoid comments describing _what_ the code is doing. Instead, spend some time improving code readability by improving your variable and method names and by extracting complex expressions into clearly named methods. Try making your top-level code as easy to read as plain english.

This way you avoid having outdated comments in your code base, while keeping the code easy to understand.

Anyone got a good tutorial on using elm to front end a rails app? I'm bored and need something to tinker on.

Github migrated 3.2 to 5.2, wow: https://githubengineering.com/upgrading-github-from-rails-3-2-to-5-2/

@judofyr yeah, I'm in the process of converting all of our REST api to GraphQL

I love the flexibility and simplicity it is giving on the front-end. There are a bunch of things we had to figure out on the back-end (e.g. we dynamically generate the API from our models, we have rate limiting and concurrency limiting using redis, we integrated it with our permissions system, etc.)

Create DXOpal sample, working in Ruby on Rails!

https://github.com/S-H-GAMELINKS/DXOpalOnRails