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Avoid the Three-state Boolean Problem

Use null: false, default: false on boolean columns in ActiveRecord migrations to avoid NULL problems.
Gabe Berke-Williams
February 24, 2014
- Web
- PostgreSQL
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
Prevent Spoofing with Paperclip

Paperclip 4.0 and 4.1 contain security fixes to prevent spoofing. A content type or filename validation is also now required.
Jon Yurek
February 14, 2014
- Web
- Ruby
- Paperclip
- Open Source
Custom Ember Computed Properties

How to refactor your own computed properties in Ember.js.
Jason Draper
February 14, 2014
- Web
- Ember
- JavaScript
Function Currying in CoffeeScript

Convert a CoffeeScript function that takes multiple arguments into a chain of functions that take one argument each. This is called function currying, and it can make your easier to understand!
Sage Griffin
February 12, 2014
- Web
- JavaScript
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
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