Hello everyone! This is Greg, with the latest news about Ruby on Rails!

This Week’s Contributors

13 awesome people contributed to Rails this past week!
If you’d like to be included here, why not check out the list of open issues?

Raise exception when column is already defined

With this change, migrations will raise an exception when defining an already defined column.

Align Time.zone.at method signature with that of Time::at

ActiveSupport::TimeZone#at now accepts an optional second argument, containing (fractional) microseconds, just like Ruby’s Time::at does.

Avoid allocating column names where possible

When requesting columns names from database adapters, ActiveRecord:Result used to dup/freeze column names. This change prefers using fstrings, which cuts down on repeat allocations.

Parent record should not get saved with duplicate children records

Before this fix a duplicated child relations validation error didn’t propagate to the parent record, but now it is all fixed.

As always, there were many more changes to the Rails codebase than we can cover here - if you’re interested, you can check out the full listing of commits from this past weeks. Until next week!