Rails根据用户输入创建多个记录

<%= form_with url: products_path, method: :post do |form| %>
  <%= form.fields_for :products do |product_form| %>
    <%= product_form.label :name %>
    <%= product_form.text_field :name %><br>

    <%= product_form.label :price %>
    <%= product_form.text_field :price %><br>
  <% end %>

  <%= submit_tag "Submit Products" %>
<% end %>

class ProductsController < ApplicationController
  def create
    Product.transaction do
      params[:products].each do |product_params|
        Product.create!(product_params)
      end
    end

    redirect_to products_path, notice: 'Products were successfully created.'
  end
end

class ProductsController < ApplicationController
  def create
    @products = []
    params[:products].each do |product_params|
      product = Product.new(product_params)
      if product.save
        @products << product
      else
        @errors = product.errors.full_messages
      end
    end

    if @errors.present?
      render :new
    else
      redirect_to products_path, notice: 'Products were successfully created.'
    end
  end
end

class ProductsController < ApplicationController
  def create
    product_records = params[:products].map do |product_params|
      { name: product_params[:name], price: product_params[:price] }
    end

    Product.insert_all(product_records)

    redirect_to products_path, notice: 'Products were successfully created.'
  end
end