One of the simplest tasks is creating and extracting files using tar and gzip. Yet for most new developers this...

A gem is a simple way to distribute functionality, it can be a small plugin, a Ruby library or sometimes...

For our new project it was necessary to modify our database starting id. This can be handled through migration for...

If you are using Devise gem for authentication and you have been adding custom fields to your model you’ll get...

Devise has a very useful Trackable module used to track user’s sign in count, timestamps and IP address. There are...

Note to self: here is how to upgrade Ubuntu 8.04 LTS (or any other release that is no longer supported)...

Here is a quick way to setup VirtualBox using Vagrant with Heroku-like box on Mac. Install VirtualBox from https://www.virtualbox.org/wiki/Downloads Install Vagrant...

RailsDiff is a very useful site when upgrading Rails versions (for example, from Rails 3.2 to Rails 4). It will...

Assume that you have the usual setup with model (MyFile) using simple Carrierwave uploader (MyFileUploader): To be able to test...

Here are some random Rails tips I’ve found useful: rails console sandbox – if you open console like this it...