socialforge/app/api/mobile/entities/syllabus.rb

module Mobile
  module Entities
    class Syllabus < Grape::Entity
      expose :title
      expose :id
      expose :can_setting, if: lambda { |instance, options| options[:user] } do |instance, options|
        current_user = options[:user]
        can_setting = instance[:user_id] == current_user.id ? true : false
        can_setting = false if instance[:id].nil?
        can_setting
      end
      expose :courses, using: Mobile::Entities::Course
    end
  end
end