Contents

# frozen_string_literal: true

module Lcms
  module Engine
    class CurriculumResourceSerializer < ActiveModel::Serializer
      self.root = false

      attributes :children, :id, :lesson_count, :module_count, :module_sizes,
                 :resource,  :type, :unit_count, :unit_sizes

      def initialize(object, options = {})
        super(object, options)
        @depth = options[:depth] || 0
        @depth_branch = options[:depth_branch]
      end

      def resource
        ResourceDetailsSerializer.new(object).as_json
      end

      def type
        object.curriculum_type
      end

      def children
        return [] if !module? && @depth.zero?
        return [] if !module? && @depth_branch && !@depth_branch.include?(object.id)

        object.children
          .includes(:copyright_attributions)
          .eager_load(:standards)
          .ordered.map do |res|
          CurriculumResourceSerializer.new(
            res,
            depth: @depth - 1,
            depth_branch: @depth_branch
          ).as_json
        end
      end

      def lesson_count
        count = descendants.select(&:lesson?).count
        object.assessment? ? count + 1 : count
      end

      def unit_count
        descendants.select(&:unit?).count
      end

      def module?
        type.casecmp('module').zero?
      end

      def module_count
        descendants.select(&:module?).count
      end

      def module_sizes
        descendants.select(&:module?).map { |r| r.self_and_descendants.lessons.count }
      end

      def unit_sizes
        descendants.select(&:unit?).map do |r|
          count = r.self_and_descendants.lessons.count
          r.assessment? ? count + 1 : count
        end
      end

      def descendants
        @descendants ||= object.self_and_descendants.ordered
      end
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
lcms-engine-0.1.4	app/serializers/lcms/engine/curriculum_resource_serializer.rb
lcms-engine-0.1.3	app/serializers/lcms/engine/curriculum_resource_serializer.rb
lcms-engine-0.1.2	app/serializers/lcms/engine/curriculum_resource_serializer.rb
lcms-engine-0.1.0	app/serializers/lcms/engine/curriculum_resource_serializer.rb