Learn how to handle multiple models in a single form with accepts_nested_attributes_for and learn how to add and remove nested records through JavaScript.
Adding translations into your website does not have to be hard. With Rails built in I18N functionality, we gain access to many helpers and conventions that makes it a much easier task. Learn how to add I18N into your Rails application.
Using the QuaggaJS Library, learn how to scan and decode barcodes with your Ruby on Rails application. Using provided callbacks, interact with controller actions to provide a seamless experience.
Add full text searching using Searchkick and Elasticsearch. Here I will show the steps involved in adding this search to an existing application and a sample of autocomplete functionality.