A couple of years ago we integrated jQuery FullCalendar plugin with a rails backend. The plugin became reasonably popular and was being used in many Rails apps. Recently we upgraded it to include an efficient full-sized, drag & drop calendar functionality within a Rails Engine and release it as a gem. With Rails 4 deprecating Rails::Plugin(commit) this would come really handy. It easily blends within a rails application. Provides a great UI experience with the use of AJAX to fetch events on-the-fly for each month and hooks for user-triggered events (like clicking or dragging an event) for an easy event editing functionality. The view can be easily…