在Rails中如何在一次查询中创建多条连接表记录？

class User < ApplicationRecord
  has_many :posts
  accepts_nested_attributes_for :posts
end

class UsersController < ApplicationController
  def create
    @user = User.new(user_params)
    @user.posts.build(posts_params) # 构建多个连接表记录

    if @user.save
      # 保存成功的逻辑
    else
      # 保存失败的逻辑
    end
  end

  private

  def user_params
    params.require(:user).permit(:name, :email)
  end

  def posts_params
    params.require(:user).permit(posts_attributes: [:title, :content])
  end
end

<%= form_for @user do |f| %>
  <%= f.label :name %>
  <%= f.text_field :name %>

  <%= f.label :email %>
  <%= f.text_field :email %>

  <%= f.fields_for :posts do |p| %>
    <%= p.label :title %>
    <%= p.text_field :title %>

    <%= p.label :content %>
    <%= p.text_area :content %>
  <% end %>

  <%= f.submit "Create User" %>
<% end %>