Ruby On Rails

Tutorials

WriteCodeEveryday/flynn_auto_scale: Let your Rails apps on Flynn scale to your business needs.

WriteCodeEveryday/flynn_auto_scale: Let your Rails apps on Flynn scale to your business needs. A gem that allows your Rails apps to self-scale as they need more and more resources under Flynn. Comes with an automated mode that can be used for "day to day" web hosting operations and a manual mode where you can control when scaling operations...

WriteCodeEveryday/darnbrokenrails: An attempt at a cybersecurity / code quality teaching tool for Rails.

WriteCodeEveryday/darnbrokenrails: An attempt at a cybersecurity / code quality teaching tool for Rails. An attempt at a cybersecurity / code quality teaching tool for Rails.The 'sqlite3' gem is used to prevent this Rails project being hosted in most major online hosts, but this application is 'insecure by design', so care should be taken when enabli...

Ruby Memoization: ||= vs. defined? - Ruby on Rails and Ember.js consultant

Ruby Memoization: ||= vs. defined? - Ruby on Rails and Ember.js consultant In the majority of the Rails applications or even Ruby gems you can find a lot of use cases where you need to memoize a result of some computation for performance benefits and to not compute it again if this result has already been computed. Seems...

Writing Ruby gems with Rust and Helix

Writing Ruby gems with Rust and Helix For the last couple of years I've been hearing how Rust can be useful to write faster Ruby gems. Last year, when Godfrey Chan gave his presentation about rewriting String.

Integrate a scratchpad file into your Rails dev workflow

Integrate a scratchpad file into your Rails dev workflow As Rails developers, it is imperative that we be comfortable and productive in the console. The console is where we have the shortest feedback cycles, making it perfect for learning and tinkering. The Rails console is useful in debugging code, man...

Fragment Caching with Rails 5.1

Fragment Caching with Rails 5.1 I cover all in depth in my Ruby on Rails 5.1 book. In this post I’d like to give a quick overview of Fragment Caching which is the most used caching method. Often it is the lowest hanging fruit. But I’ve seen plenty of Rails projects where it was ...

Assert Multiple Differences in Minitest with assert_differences

Assert Multiple Differences in Minitest with assert_differences There have been many times in my coding career that I've needed to test that multiple values change during an event.Maybe you want to check that a User, their Settings, and Posts all get deleted when a user removes their account. Technically you s...

Replacing Eval with Object.send and a self written Parser · Ramblings of a build engineer

Replacing Eval with Object.send and a self written Parser · Ramblings of a build engineer A while ago, I was added as a curator for a Gem called JsonPath. It’s a small but very useful and brilliant gem. It had a couple of problems which I fixed, but the hardest to eliminate proved to be a series of evals throughout the code.You could o...

Demystifying the IO Monad for Rubyists

Demystifying the IO Monad for Rubyists There is a terrible cycle which exists in the lifecycle of functional programmers. Monads are confusing at first so the programmer will read many articles explaining how monads are actually easy---which will fail to achieve any pedagogical goals d...

Using React Inside Your Rails Apps

Using React Inside Your Rails Apps I have never felt as productive as I do in Rails. Yet, with front-end seemingly moving further away from server-rendered views toward React, Angular, Vue, and Ember, I was unsure where Rails fit into this picture. Would it be relegated only to app...

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