Rails Active Admin: from config File to Admin Portal


This blog post is a continuation of part 1 that had focused on the the installation process of Active Admin. In the current post, we show how Active Admin can be used to migrate from a configuration file based approach by an admin portal based approach. We start with a configuration file a la figaro, and migrate a boolean-like variable to Active … More Rails Active Admin: from config File to Admin Portal

Rails Active Admin Installation Experiences / HowTo


In this post, I have recorded my experiences with ActiveAdmin, a Rails Engine that has following goals (copied from their readme file): Enable developers to quickly create good-looking administration interfaces. Build a DSL for developers and an interface for businesses. Ensure that developers can easily customize every nook and cranny. The path to success is described … More Rails Active Admin Installation Experiences / HowTo

Upgrading Rails to 4.2.x and Ruby to 2.2.x — an end to end Example


In this post, I have recorded my experiences when upgrading my hobby Web Application, a ProvisioningEngine front end from Rails 4.1.x to Rails 4.2.x and ruby from 2.1.x to 2.2.x. The upgrade went relatively smoothly, apart from an additional gem needed (‘test-unit’) and a test failure due to changes in the Rails Url helpers. v1: 2016-01-26: … More Upgrading Rails to 4.2.x and Ruby to 2.2.x — an end to end Example

Docker Performance Tests for Ruby on Rails


In a series of performance tests, we could show that a (Rails) web application has 50% higher performance on docker (installed on Windows/boot2docker) than the same application run natively on Windows, no matter whether or not the database and program code is located on a shared volume. However, if such a shared volume is auto-mounted to one of the Windows C:\Users folders, the performance drops by a factor of almost ten. … More Docker Performance Tests for Ruby on Rails