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Using Arel to Compose SQL Queries

Use composition to build more complex SQL queries in Ruby using ActiveRelation’s API.
Sage Griffin
February 17, 2014
- Web
- Rails
How to Evaluate Your Rails JSON API for Performance Improvements

Before adding database indexes, eager loading, and caches, spend a few minutes at the whiteboard with your team to rethink the high-level requirements for your JSON API.
Laila Winner
February 10, 2014
- Web
- Performance
- Rails
Back to Basics: HTTP Requests in Rails Apps

An in-depth look at HTTP requests and how Ajax works in Rails.
Britt Ballard
February 5, 2014
- Web
- Back To Basics
- HTTP
- Rails
Automatically Wait for AJAX with Capybara

How to use Capybara’s wait_for_ajax helper.
Gabe Berke-Williams
February 4, 2014
- Web
- Rails
- Testing
ActiveRecord's where.not

Make clunky negation queries in ActiveRecord easier to read.
Gabe Berke-Williams
January 24, 2014
- Web
- Rails
How we test Rails applications

We use RSpec feature and specs heavily, controller and view specs more judiciously, FactoryBot for test data, JavaScript integration specs with Poltergeist or Capybara Webkit, like test doubles and test spies but not test mocks, and we stub external requests with Webmock.
Josh Steiner
January 14, 2014
- Web
- Rails
- Testing
Handling Associations on Null Objects

How to use ActiveRecord’s NullRelation.
Sage Griffin
January 10, 2014
- Web
- Rails
Rendering Collections in Rails

Partials are a great way to break down complex view into more manageable...
Joël Quenneville
December 31, 2013
- Web
- Rails
Using Polymorphism to Make a Better Activity Feed in Rails

You won’t find “polymorphic partials” in Rails’ API documentation. However,...
Dan Croak
December 2, 2013
- Web
- Rails
A Tour of Rails’ jQuery UJS

If you have a look at the default application.js file generated by Rails,...
Derek Prior
November 9, 2013
- Web
- Rails
- JavaScript
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