Ruby On Rails

Tutorials

372 Bullet - RailsCasts

372 Bullet - RailsCasts Short Ruby on Rails screencasts containing tips, tricks and tutorials. Great for both novice and experienced web developers.Bullet will notify you of database queries that can potentially be improved through eager loading or counter cache column. ...

Routing Partials

Routing Partials The routes file can grow to be unmaintainable and messy. Learn to keep things organized by extracting out blocks of routes into their own files.

On Cleaner Controllers

On Cleaner Controllers A few days ago, I worked on a project that was mostly about serving up basic store data (modeled after Etsy) to an API.We had a few dozen end-points, and all responses were in JSON.Most of the action happened inside of our controllers, and as you ...

How to find and fix bug in JRuby and don't go crazy

How to find and fix bug in JRuby and don't go crazy Hi there. I wrote this post to show how much effort is invested in small and simple one-line pull request. I tried to show the whole process from the appearance of the problem upon fixing it and sending patch back to upstream.Other day I tried new...

How to Build a Ruby SlackBot

How to Build a Ruby SlackBot Why a Slack bot? Well, like it or not, a developer’s work has a great deal of team communication and Slack is a great platform for it. Let’s face it, we spend some time in it and it’s a great place to have a bot! Also, this platform has become mor...

Rails 5.1 does not share thread_mattr_accessor variable with subclass

Rails 5.1 does not share thread_mattr_accessor variable with subclass Rails 5.0 provides mattr_accessor to define class level variables on a per thread basis.However, the variable was getting shared with child classes as well. That meant when a child class changed value of the variable, then its effect was seen in t...

The hidden cost of the invisible queries in Rails

The hidden cost of the invisible queries in Rails Ruby on Rails is awesome, it is really awesome. It allows us to create web applications without knowing every involved technology. After all, Rails is optimized for programmers happiness and it does a terrific job.One of those technologies where R...

Integrating DynamoDB with Ruby on Rails Application

Integrating DynamoDB with Ruby on Rails Application A typical Ruby on Rails application comes with ActiveRecord, which makes using RDBMS (such as MySQL, PostgreSQL etc) cake walk. There are times, when we want to leverage power of NoSQL with our Rails application. There are many NoSQL database avai...

Fixing Unicode for Ruby Developers

Fixing Unicode for Ruby Developers We already know how Unicode works under the hood. In this final part, we’ll learn the theory and practice of handling Unicode properly.

Fighting the Hydra of N 1 queries

Fighting the Hydra of N 1 queries Let’s talk about the N 1 problem in Rails. We will go through a short intro for beginners, speak of the ways to tame the problem (specifically, using the bullet gem), ActiveSupport instrumentation, and introduce the rspec-sqlimit gem.

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