title: Ruby on Rails using Qr Codes
body: <p>Does anybody know of any tutorials to create a QR CODE in rails 4.0.2 ruby 1.9.3. I have found a number of qr code gems here <a href="https://www.ruby-toolbox.com/categories/QR_Codes" rel="nofollow">https://www.ruby-toolbox.com/categories/QR_Codes</a> but there is very little documentation to explain how to use them in a website. I am just looking for a simple example of how to create one and then display it. Thanks for help..</p>