書きぶり検討

example.rb

# frozen_string_literal: true

@media_website_id = 2_136

def before_labels
  registered_labels = []
  MediaWebsite.eager_load(media_website_labels: :label)
      .where(id: @media_website_id).first
      .media_website_labels.each do |media_website_label|
    label = media_website_label.label
    parent_label = media_website_label.label.parent
    registered_labels.push(media_website_label_id: media_website_label.id,
                           id: label.id,
                           name: label.name,
                           parent_id: parent_label.try(:id),
                           parent_name: parent_label.try(:name) || '-')
  end
  registered_labels
end

def after_labels
  media_website = MediaWebsite.eager_load(media_website_labels: :label).find(@media_website_id)
  media_website.media_website_labels.map do |media_website_label|
    label = media_website_label.label
    registered_label = {
      media_website_label_id: media_website_label.id,
      id: label.id,
      name: label.name,
      parent_id: nil,
      parent_name: '-'
    }
    next registered_label if label.root?
    registered_label.merge!(
      parent_id: label.parent.id,
      parent_name: label.parent.name
    )
  end
end

def main
  ap before_labels == after_labels
  ap before_labels
  ap after_labels
end

main

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