This gem just includes fullcalendar and scheduler as an asset in rails applications or other ruby frameworks Fullcaledar-scheduler is not free for commercial use, so make sure you have a valid license to use scheduler.

Fullcalendar JavaScript depends on jQuery and moment js. If you're using Rails 5.1+, add the jquery-rails gem to your Gemfile:

gem 'jquery-rails'
gem 'momentjs-rails'

Add this line to your application's Gemfile:

gem 'fullcalendar'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fullcalendar

rails g fullcalendar:install 

this generator will:

• 1. append //= require calendar add app/assets/javascripts/application.js
• 2. append *= require calendar add app/assets/stylesheets/application.css
• 3. create calendar.js in app/assets/javascripts/
• 4. create calendar.scss in app/assets/stylesheets/

Include the JavaScript in your app/assets/javascripts/application.js:

//= require jquery
//= require calendar

create new file app/assets/javascripts/calendar.js

//Core component
//= require fullcalendar
// optional locale
//= require fullcalendar/locale/ms

//Optional addon scheduler
//= require fullcalendar/scheduler

Include the stylesheet in your app/assets/stylesheets/application.css:

*= require calendar

or if you using scss

Include the stylesheet in your app/assets/stylesheets/application.scss:

@import 'calendar';

Create new file app/assets/stylesheets/calendar.scss

@import 'fullcalendar';
@import 'fullcalendar/scheduler';

Where needed in your JavaScripts, initialize your fullcalendar:

$(document).ready(function() {
  $("#calendar").fullcalendar();
});

see fullcalendar documentations here

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/fullcalendar. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.
Fullcalendar and Scheduler, which makes up the majority of this gem, has its own, separate licensing agreement.

• Fullcalendar Read license
• Scheduler Read license

Everyone interacting in the Fullcalendar project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.