Ruby On Rails

Tutorials

Using Optimizer Hints in Rails

Using Optimizer Hints in Rails An execution plan describes a recommended method of execution for a SQL statement. The query optimizer attempts to generate the most optimal execution plan for a SQL statement.The optimizer chooses the plan with the lowest cost in terms of I/O, CP...

Custom Exception Handling in Ruby

Custom Exception Handling in Ruby In Ruby, like in most languages, an exception is a way to convey that something went wrong. While some languages only use exceptions for truly exceptional circumstances, like run-time errors, Ruby uses exceptions for a wide variety of errors and u...

Understanding webpacker.yml

Understanding webpacker.yml Though Webpacker adds a layer of "convention over configuration" in regards to webpack integration with Rails, the need for configuration remains. In this post, I'll describe the role of the webpacker.yml file for Webpacker configuration.One of We...

Mocking in Ruby with Minitest

Mocking in Ruby with Minitest Mocking is used to improve the performance of your tests. This tutorial will show you how to use mocks and stubs in Ruby with Minitest.In this tutorial, we will learn how to test Ruby on Rails applications with Minitest. We’ll cover how to do use ...

Testing Ruby decorators with super_method

Testing Ruby decorators with super_method Have you ever wondered how you can properly test the behavior of a method overridden by Module.

Improve code readability with closures in Ruby

Improve code readability with closures in Ruby Code readability is a very critical parameter for any project maintainability. Serious business needs reacting to failures and fixing bugs as soon as possible. That allows not to lose old clients and make the service more attractive for new ones.B...

How to handle with remote services in tests

How to handle with remote services in tests The main idea is to override implementation dynamically during the call of external service. In other words, to use different sources for receiving data for different environments. Suppose for production environments the data will be pulled from a...

A hands-on tutorial to debugging your code with pry-byebug

A hands-on tutorial to debugging your code with pry-byebug Like most new developers, I first started as a puts debugger. I would write puts everywhere to see what’s what - something I’m still doing when debugging Javascript 1.One day, I had the chance to spend some time with Cecile Varin, who showed me th...

Upgrading Rails: Tracking down deprecated callbacks in Rails 5.0

Upgrading Rails: Tracking down deprecated callbacks in Rails 5.0 We’re in the process of upgrading some of our Rails apps at Clio from Rails 5.0 to 5.1 (and onwards to 6 in the coming months 🚀). Part of our upgrade strategy involves addressing the deprecation warnings that Rails helpfully provides, in order to ...

Our Rails Upgrade Process: How to Bundle Update Rails

Our Rails Upgrade Process: How to Bundle Update Rails We know that there are many challenges involved in a Rails upgrade project. Depending on how big your application is, how old your Rails version is and how well structured your code is, it can be difficult to perform that job and keep your sanity....

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