osem-fcy/app/views/schedules/vertical_schedule.haml

.container#program
  = render 'schedule_tabs', active: 'vertical_schedule'

  %h1.text-center
    Vertical Schedule for
    = @conference.title

  #calendar

:javascript
  document.addEventListener('DOMContentLoaded', function() {
    var calendarEl = document.getElementById('calendar');

    var calendar = new FullCalendar.Calendar(calendarEl, {
      timeZone: 'UTC',
      initialView: 'resourceTimeGridDay',
      resources: "<%= @rooms >",
      events: "<%= @event_schedules >"
    });

    calendar.render();
  });