更新rails中的嵌套属性

class User < ApplicationRecord
  has_one :address
  accepts_nested_attributes_for :address
end

<%= form_for @user do |f| %>
  <%= f.text_field :name %>
  
  <%= f.fields_for :address do |address_fields| %>
    <%= address_fields.text_field :street %>
    <%= address_fields.text_field :city %>
    <%= address_fields.text_field :country %>
  <% end %>
  
  <%= f.submit %>
<% end %>

class UsersController < ApplicationController
  def update
    @user = User.find(params[:id])
    if @user.update(user_params)
      redirect_to @user
    else
      render 'edit'
    end
  end
  
  private
  
  def user_params
    params.require(:user).permit(:name, address_attributes: [:street, :city, :country])
  end
end