Is Elixir a scripting language?
Elixir is known for being a language made for building distributed applications that scale, are massively concurrent, and have self-healing properties. All of these adjectives paint Elixir in a grandiose light. And for good reasons! But is Elixir also a language that can be used for the more mundane tasks of this world like scripting? I think the answer is a definite yes. To see this, let’s take a
Deprecating Paperclip
In its eleventh year as an open source project, we have decided to halt work on Paperclip. This comes from a combination of already slowed work on the project, a constantly growing list of issues and pull requests that we struggle to keep on top of, and most recently the release of ActiveStorage in Rails 5.2. Migrating For moving from Paperclip to ActiveStorage, please see the migration guide. As
Renaming Cocaine to Terrapin
Photo by NCWRC and courtesy of Ohio University. Licensed CC-BY-NC. Cocaine was originally extracted from how Paperclip handled shelling out its commands to ImageMagick. I named it “Cocaine” because, one, I really enjoy puns and, two, I fully didn’t expect anyone else to use it. But, as they say, no matter what you assume, people will do something differently. Is that what they say? Anyway, point i
Designing Lucky: Rock Solid Actions & Routing
Lucky catches bugs, returns responses quickly, and helps you write maintainable code. Lucky’s actions help you to process requests and return responses as reliably and productively as possible. To make Lucky actions rock solid, we looked at the problems we often experience while building apps. Problems that we wanted to solve with Lucky These issues often slow down development or cause embarrassin
Why Factories?
These days, most Rails projects use some form of factories in their test set up. What problem do they solve and why are they needed? Too much info Given a User model with first_name, last_name, and location fields, we could write a test like: describe "#full_name" do it "combines first and last name" do user = User.new( first_name: "Joël", last_name: "Quenneville", location: "Boston" ) expect(user
factory_bot
We’re renaming factory_girl to factory_bot (and factory_girl_rails to factory_bot_rails). All the same functionality of factory_girl, now under a different name. Initial Rollout After the rename of the gem, we rolled out version 4.8.2 of all of factory_girl, factory_girl_rails, factory_bot, and factory_bot_rails on October 20, 2017. We decided on a patch-level release because after internal testin
How Do You Decide When a Design is "Finished"?
When dealing with code, it’s usually apparent when it’s time to move on to the next feature or wrap up the project. Once the code works and it’s written well you can typically call it a day. In design however, drawing that line can be tricky and has the tendency to be very subjective. While others may look at a design and think it’s up to par, sometimes there’s an uneasy feeling that it’s not quit
Rapid cross-platform mobile development with React Native
In this article, we examine a few features of React Native that helped us ship a cross-platform iOS and Android app in 8 weeks, without sacrificing user experience on either platform. First, we’ll see how code reuse and a fast feedback cycle let us move really quickly and help us rapidly iterate on our designs. Then, we’ll learn about the framework’s flexbox-based layout system and evaluate a few
Acceptance Tests with Subdomains
You’re excited about building a new application which allows users to sign up and host their own blog. You decide that each blog will have their own space by providing a subdomain. Let’s start off with a feature spec. require "rails_helper" feature "user views a blog" do scenario "homepage" do blog = create( :blog, subdomain: "bobloblaw", title: "Bob Loblaw's Law Blog", description: "Welcome to my
Elixir for Rubyists
Some aspects look different at a first glance. For example, Elixir code looks a bit more verbose than Ruby code. Module names are spelled out in most function calls. Modules being used in the current file are explicitly included. State is passed into functions as arguments. Before explaining how macros can extend the language, its documentation page explicitly discourages its use. Elixir can indee
How We Replaced React with Phoenix
About a year and a half ago we built an internal tool for company-wide announcements. We had originally built the back-end in Phoenix and the front-end in React, taking advantage of Redux and Phoenix channels to deliver updates to the browser in real-time. This made for a great real-time experience but it also slowed down the pace of development and caused fewer people to contribute. About three m
thoughtbot Ruby Open Source is Ready for Rails 5
Ruby on Rails 5.0 was just announced! Rails continues to be secure, productive, extensible, stable, and makes us happy thanks to the consistent work of the core team and hundreds of contributors. To all of you who helped triage an issue with Rails or its ecosystem, contributed any new issue, improved documentation, or submitted code: thank you! Writing Ruby is fun and productive thanks to your wor
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