是否可以以递归方式保存Rails中的记录？

class Category< ApplicationRecord
  has_many :sub_categories, class_name: "Category", foreign_key: "parent_id"
  belongs_to :parent_category, class_name: "Category", optional: true

  accepts_nested_attributes_for :sub_categories, allow_destroy: true
end

class CategoriesController< ApplicationController
  def new
    @category = Category.new
    @category.sub_categories.build
  end

  def create
    @category = Category.new(category_params)
    if @category.save
      redirect_to @category
    else
      render :new
    end
  end

  private

  def category_params
    params.require(:category).permit(:name, :parent_id, sub_categories_attributes: [:name, :parent_id, :_destroy, sub_categories_attributes: [:name, :parent_id, :_destroy]])
  end
end

<%= form_with(model: category, local: true) do |form| %>
  <%= form.label :name %>
  <%= form.text_field :name %>

  <%= form.fields_for :sub_categories do |sub_category_form| %>
    <%= sub_category_form.label :name %>
    <%= sub_category_form.text_field :name %>
  <% end %>

  <%= form.submit "Create" %>
<% end %>