Rails Foundation Contributing Member
Ruby on Rails consulting from engineers who work deep in Rails.
Saeloun helps teams modernize Rails applications, improve performance, untangle production issues, and ship product work with a senior Rails and React team in Boston and Pune.
- 604+
- engineering articles
- 2019
- founded in Boston
- Rails
- Foundation member
Latest Rails, React, and engineering articles
Field notes on framework changes, performance, upgrades, testing, and product engineering.
Rails 7.2 Blob#compose Custom Key Support
Rails 7.2 allows to add custom blob key in the ActiveStorage::Blob APIs
Ruby 3.4 Keyword Args in Index SyntaxError
Passing keyword arguments in index to an array set methods throws SyntaxError.
Explore new hooks coming up in React 19
React 19 introduces useActionState, useFormStatus, useOptimistic, and use hooks for better form handling.Rails 7.2 order Supports Hash Values
With Rails 7.2, ActiveRecord::Relation#order supports hash values where keys are table name, value is a hash of key (column name) and value (order direction).Rails 7.2 PG Adapter Date Type Casting
Rails 7.2 adds a Date decoder to the PostgreSQL adapter to type cast date columns to Ruby Date.Ruby 3.4 Block in Index SyntaxError
Passing a block as an argument in index to an array throws SyntaxError in Ruby 3.4 as it is no longer allowed.Rails 7.2 n_plus_one_only Strict Loading
In Rails 7.2, with strict loading in :n_plus_one_only mode, associations are eagerly loaded and child associations are lazy loaded.
Ruby 3.4 Deprecation Warnings for Mutable String Literals
Ruby 3.4 introduces "chilled strings" — mutable string literals that emit a deprecation warning when mutated, nudging developers toward frozen strings.Ruby 3.4 Range#size TypeError Fix
Range#size raises TypeError if the begin value of Range is a Float or Rational or Beginless.
Rails 8 adds Kamal by default.
All new applications using Rails 8 will have Kamal by default.