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Ruby on Rails: Compress the complexity of modern web apps

Safer to_i coercion, custom to_fs formats, and more! This Week in Rails: May 16, 2026 This Week in Rails: May 8, 2026 This Week in Rails: May 1, 2026 Active Record gets better every week Great big Rails World 2026 update: CFP, Corporate Support tickets, workshops Query command for database queries and more Explicit query: and body: kwargs for integration tests and more! Speedup ActiveRecord::LogSubscriber#sql_color and more! This Week in Rails: March 27, 2026 Rails Versions 8.0.5 and 8.1.3 have been released! Rails Versions 7.2.3.1, 8.0.4.1, and 8.1.2.1 have been released! This Week in Rails: March 20, 2026 Validate URI scheme in Action Text and more This Week in Rails: March 6, 2026 Planning Center is the newest Rails Foundation Contributing member Action Text gets Markdown conversion, editor links in devcontainers, and more! BARRA seeks Rails developer Joe Agliozzo is looking for a Rails developer The rise of lighttpd as the alternative web server When longer is better and more is more Snowdevil: First e-tailer on Rails Natural selection for frameworks in Ruby vs Java Address book tutorial in Portuguese Becoming a better programmer with Rails 10 Things Every Java Programmer Should Know About Ruby Really Getting Started in Rails Off the Treadmill, Onto the Rails Rails 0.9.5: A world of fixes and tweaks Rich clients with Rails and XUL
This week in Rails: Connection Pool, Responsive Site, Oh my!
David Heinemeier Hansson · 2015-05-15 · via Ruby on Rails: Compress the complexity of modern web apps

Friday, May 15, 2015
Posted by kaspth

Hey everyone, cough this is cough Kasper.

I’ve been cough sick most of the week and am cough-ing my way through this.

Feel free to insert cough’s through the rest of this, as long as you remember not to snooze on a sneeze or two too.

Alright, cough ‘em up.

This Week’s Rails Contributors

Look at these 31 people and how they’ve hammered away at their keyboards, as if possessed by a different sickness. One of radness that is, my duderinos and duderinas.

Active Record: Connection Pool is More Concurrent

Active Record keeps a pool of database connections. To keep the pool safe from people trying to cannonball queries at once we need to lock it. The pull request slims down what happens when locking, so you can quicker release the lock. Basically more people can go splash, because the diving board is free earlier.

Holy Ruby on Rails on Responsive Website, Batman!

Are you on your phone? Are you on your watch? Are you on the toi… eh, anyway, the Rails website is now responsive.

Just to tide you over until the website redesign will be revealed. That’ll surely be a royal flush.

New Stuff

The Tragoedia and Comoedia of Integers

This week integers gained introspection methods that makes a select a tad easier to read. They are the gangbuster team of negative? and positive?. And hopefully the polarity shockwaves will rock the Ruby world too.

Fixed

Don’t Add to Local Assigns without an Object

If you rendered a partial like <%= render partial: 'spruce_goose' %>, Rails would spruce up local_assigns with the name of the partial. That goose chase ended this week.

One More Thing™

One More Chance to Review Rails API

The option to generate API only Rails apps is almost done. But there’s still a chance to help out by reviewing it. Give it a shot of love!

That’s a wrap

That’s all for This week in Rails. As always, there are more changes than we have room to cover here, but feel free to check them out yourself!

P.S. If you enjoyed this newsletter, why not share it with your friends? :) If you wish to be part of this project please don’t hesitate to contact Godfrey – there’re a lot of ways you could help make this newsletter more awesome!