if @availabilities
  json.(@availabilities) do |availability|
    json.availability_id availability[:availability_id]
    json.start availability[:start]
    json.end availability[:end]
  end
end

if @other_user_availabilities
  json.(@other_user_availabilities) do |availability|
    json.availability_id availability[:availability_id]
    json.start availability[:start]
    json.end availability[:end]
  end
end

unless @class_schedules.blank?
  json.(@class_schedules) do |schedule|
    json.group_id schedule.group.id
    json.label schedule.name
    json.path class_schedule_path(schedule)
    json.status_label 'my-course'
    json.start schedule.start_time(@start_date)
    json.end schedule.end_time(@start_date)
    json.type 'class_schedule'
  end
end