Rails is a rapidly moving, open source, web development framework, and keeping up to speed with it is a big task. You might have already built applications using it, but there have been significant changes in the syntax and semantic of the Rails framework in the latest upgrade. Rails 4 Application Development Hotshot shows you how to build the most popular types of applications using Rails 4, and highlights new ways to do things. The book also closely follows lots of the best practices, gems, and popular solutions already known to the community, and tracks the changes in these. This book brings new ideas to refactor and restructure code to make it perform better in production, and enables you to write production-ready code.