This will give you the string that appears most often in an array:

names = %w[ foo foo bar bar bar baz ]
names.group_by(&:to_s).values.max_by(&:size).try(:first)
=> "bar"

This is very similar to the linked StackOverflow thread, but does not break on empty arrays.

Note that try is provided by ActiveSupport (Rails). You could explicitly load activesupport or use andand on plain Ruby.

If you specify different ports, you can run multiple local webricks with rails server --port=300X at the same time.

If you were using Dusen for its query parsing and LIKE queries, we recommend to migrate to Minidusen, which extracts those parts from Dusen. Minidusen is compatible with MySQL, PostgreSQL and Rails 3.2, 4.2 and 5.0.

If you are looking for a full text indexing solution, we recommend to use PostgreSQL with pg_search.

When there's a Gemfile.lock in your working directory that you cannot remove by either checkout, reset [--hard], stash, probably Rails' Spring is the culprit and not Bundler itself.

Fix

spring stop

The author of the linked Stackoverflow post supposes Spring re-writes the Gemfile.lock on change to ensure all Spring processes are using the same gem versions. Meh.

Lightweight Angular JS directive to upload files

Includes polyfills for old IEs. Unfortunately, their auto-loading mechanism may not work properly on your Rails application due to the asset pipeline. They use FileAPI, so you could just include it manually for old browsers, or when you want to use FileAPI's toolkit anyway.

assignable_values now supports Rails 4.1 and Ruby 2.1.0.

The Rails community has been abuzz with object-oriented programming, SOLID principles, laws, design patterns, and other principles, practices, and patterns. We’ve (re)discovered new tools and techniques to separate and reuse logic, making code easier to test, understand, and maintain. Now that we’ve learned about all these new tools, when do we use them?

Presentation about optimizing Ruby on Rails apps.

From Nico Hagenburger (homify's lead frontend developer).

When ActiveRecord child objects are autosaved in Rails.

Databound provides Javascript a simple API to the Ruby on Rails CRUD.

Tries to expose a full model CRUD as an API. Not sure if this is useful for more refined requirements.

Now supports Rails 4.1 and Ruby 2.1.

Rails 4.0 introduced a helpful new method for ActiveRecord queries: where.not. It can make clunky queries easier to read.

Chrome extension that shows all info from your rails log (like parameters, response times, view rendering times, DB requests) inside a chrome panel.

New WYSIWYG editor that claims to be lighter and prettier than TinyMCE and CKEditor. Has some Rails integration, too.

I’ve worked on huge applications in Ruby and Rails before. I very much want to believe in DCI, but I’m having a hard time accepting the promises of Clean Ruby when it seems like the work on this paradigm is half-done. If it weren’t so oversold and hyped, I think I’d be more patient, but right now I’m just frustrated and confused.

A number of issues concerning Sass/SCSS autocompletion and syntax highlighting were submitted as a feedback for RubyMine 4.5. Web development with Rails can’t do without Sass/SCSS code writing so we’ve decided to fix the most annoying bugs as soon as possible.

For custom Rake tasks, you shouldn't need to modify them after the original definition. However, if you want to add behavior to some vendor tasks (such as those defined with Rails), this blog post will cover how to do that.

How to make class_attribute behave like class_inheritable_attribte which no longer exists in Rails.

Slides presenting ways to integrate the ideas of Aspect-Oriented Programming in Ruby.

Outline

• Why Aspect-Oriented Programming?
• AOP in Java and AspectJ (a Review).
• AOP in Ruby.
  • What you can do today.
  • Example AOP-isms in Ruby on Rails.
• Aspect-Oriented Design.
• The AOP Promise for Tomorrow.

A small library to provide the Rails I18n translations in Javascript clients.

Our rcov:all task for aggregated RSpec/Cucumber coverage was overhauled extensively. Among other things it now works for Rails 2 and 3 and has an option to ignore shared traits.