Ruby On Rails

Tutorials

Optimizing the Wrong Code

Optimizing the Wrong Code Today I was going through some of our worst queries on Skylight and trying to find some low-hanging fruit to improve performance with the least effort possible. I like Skylight because it's a tool designed to reduce noise. Whenever you get into th...

Rails' CurrentAttributes considered harmful - Ryan Bigg

Rails' CurrentAttributes considered harmful - Ryan Bigg Very briefly, it makes program state unpredictable.To elaborate, imagine you have a couple of objects that both use the same global variable. Assuming you're not using a source of randomness anywhere within either module, then the output of a part...

Why you should probably avoid mixins

Why you should probably avoid mixins As you might have heard inheritance is evil. I won’t argue, but indeed often inheritance is used improperly. The only legitimate usage of inheritance is creating more specific entity, not sharing the code. In this blog post I’ll assume that inheri...

7 ways to evaluate gems, and 1 crazy idea

7 ways to evaluate gems, and 1 crazy idea I remember late nights browsing support forums ready for any answer to help. Writing a post, pleading for help, hitting refresh, and waiting for someone to reply was not efficient. But when that's all you know to do, it had to work.Sleepless night...

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 ...

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