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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 Pedrosa on Rails vs WebWork: 'Language DOES matter' 'Ruby on Rails is unbelievably good' Celebrating six months anniversary! Speeding up CGI access to Gem Rails CD Baby leaves PHP behind for Ruby on Rails "I think Ruby on Rails is way over hyped" Programmer needed for JSP to Rails conversion Beyond the 10,000th gem install of Rails 'That application is so stupid' Matz takes note of Ta-da and Rails Rails tutorial on O'Reilly's ONLamp Welcome Slashdotters! Ta-da goes international with UTF-8 Make your Ta-da list today Rails 0.9.4.1: Cleaning up the mess Rails 0.9.4: Caching, filters, SQLite3... An unusual high presence of Macs Having problems running tests under 1.8.2? It\'s all about the applications But what does Rails go web services with XML-RPC prototype Rails runs through XP Cincinnati RedHanded out-evangelizes the evangelizer Rails on Lighttpd with FastCGI Have a codefest and collect cash from RubyCentral Jamis Buck is working on Basecamp S5 Presents competes with SoapBX 3,000 people are doing 10,804 things... Using the Rails to impress potential employers Brian discovers the default logging goodness SoapBX: Presentations powered by S5, Textile, Rails Road Map: The rails leading to 1.0 Tracks: A Getting Things Done implementation Nicholas presents the Directors Rails 0.9.3: Optimistic locking, dynamic finders, 1.8.2 Ruby on the German Rails 43things in 5,204 lines of Ruby on Rails Watch for huge requests on default FCGI How the redesign of the website came to be Are you watching the health of your software? "Some amazing web apps appear on Ruby on Rails" Learning Ruby on Rails with 43things The Robot Co-op takes 43things.com live! Giving up on Java for lack of love Setting up EliteJournal on TextDrive without a vhost Celebrating 219 applied patches since 0.7 Escaping Java but not its thinking "Simple design that even my grandma can understand" Rails logo remixed by Olivier Hericord Rake 0.4.14 includes fix for Ruby 1.8.2 Splitting off the research patches Running rake tests with Ruby 1.8.2 Marten opens Epilog for Trac'ing Drew McLellan predicts Rails celebrates more than 10,000 downloads Variations on a railed theme Securing your Rails: Keep it secret, keep it safe Available for hire? Collaboa and EliteJournal joins the Trac Playing Active Records on MS SQLServer and DB2 Open sourcing the Rails logo Rails: Technology of the Year #1 Reacting to customer requests in real time Extracting missing content from wiki backups Ruby on Rails has its web presence overhauled 43 things makes The Seattle Times 5.gets David Heinemeier Hansson Ruby 1.8.2 finally sees the light of day Rails 0.9: Fast development, breakpoints, validations Rails 0.9.1: Small, but important bugfix for Action Pack
Model Missing Attributes, SQLite Immediate Transactions, and CVV/CVC Parameter Filtering by default
David Heinemeier Hansson · 2024-07-26 · via Ruby on Rails: Compress the complexity of modern web apps

Hi, it’s zzak. This is a short week, but let’s jump in.

Drop Hash#except core extension
Rails 8.0 will be Ruby 3.1 or greater only except natively got added in Ruby 3.0 so this is dead code now.

Introduce ActiveModel::AttributeAssignment#attribute_writer_missing
Provide instances with an opportunity to gracefully handle assigning to an unknown attribute:

class Rectangle
  include ActiveModel::AttributeAssignment

  attr_accessor :length, :width

  def attribute_writer_missing(name, value)
    Rails.logger.warn "Tried to assign to unknown attribute #{name}"
  end
end

rectangle = Rectangle.new
rectangle.assign_attributes(height: 10)
  # => Logs "Tried to assign to unknown attribute 'height'"

Add “cvv” and “cvc” as default parameters to filter out in new apps
For new apps, this PR adds cvv and cvc to the defaults for ActiveSupport::ParameterFilter.

Ensure SQLite transaction default to IMMEDIATE mode
This PR updates the SQLite adapter to use IMMEDIATE mode whenever possible in order to improve concurrency support and avoid busy exceptions.

You can view the whole list of changes here. We had 15 contributors to the Rails codebase this past week!

Until next time!

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