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我有用户和用户有一个地址。我需要创建一个表单，就像编辑个人资料页面一样。这将节省少量用户的字段并保存用户的地址。但是每次我提交表单时，用户的数据都正确地保存在数据库中，但是对于地址，每次使用正确的user_id值创建新记录，而其他字段值为空。Rails 4 - 保存/更新嵌套记录
查询：如何在数据库中保存地址？
class User < ActiveRecord::Base
has_one :address
accepts_nested_attributes_for :address
end
class Address < ActiveRecord::Base
belongs_to :user
belongs_to :country
attr_accessor :city, :zip_code, :street_address, :state
end
形式
<%= form_for @user, url: {controller: :profiles, action: :update} do |f| %>
<%= f.text_field :first_name, autofocus: true, :placeholder => 'First Name' %>
<%= f.text_field :last_name, :placeholder => 'Last Name' %>
<%= f.fields_for :address do |address_fields| %>
<%= address_fields.select :country_id, options_for_select(["Select One", "Cell", "Work", "Office", "Home", "Other"],:disabled => ["Select One"]) %>
<%= address_fields.select :state, options_for_select(["Select One", "Cell", "Work", "Office", "Home", "Other"],:disabled => ["Select One"]) %>
<%= address_fields.text_field :city, :placeholder => 'City' %>
<%= address_fields.text_area :street_address, :placeholder => 'Street Address' %>
<%= address_fields.text_field :zip_code, :placeholder => 'Zip Code' %>
<% end %>
<%= f.submit "Update", :class => 'btn btn-primary' %>
控制器
class ProfilesController < ApplicationController
def edit
@user = current_user
@user.build_address if @user.address.nil?
end
def update
@user = current_user
respond_to do |format|
if @user.update(user_params)
format.html { redirect_to welcome_url, notice: 'Your Profile was successfully updated.' }
format.json { render :show, status: :ok, location: @user }
else
format.html { render :edit }
format.json { render json: @user.errors, status: :unprocessable_entity }
end
end
end
private
def set_user
@user = User.find(params[:id])
end
def user_params
params.require(:user).permit(:first_name, :last_name, :email, :phone_number, :date_of_birth, address_attributes: [ :id, :city, :country_id, :zip_code, :street_address, :state])
end
end