相关疑难解决方法(0)

我尝试为has_one关联创建一个嵌套的模型表单.(我正在使用Rails 4)

在我的用户和地址模型中,我有以下内容:

class User < ActiveRecord::Base
 has_one :address
 accepts_nested_attributes_for :address
end

class Address < ActiveRecord::Base
 belongs_to :user

end

我的用户控制器:

class UsersController < ApplicationController
    .
    .
    .
    def edit
      @user = User.find(params[:id]) 
      @user.build_address if @user.address.nil?
    end 

    def update
      @user = User.find(params[:id])
      if @user.update(params.require(:user).permit(:user_name, address_attributes: [:street]))
        flash[:success] = "Profile updated successfully"
        sign_in @user
        redirect_to @user
      else
         flash.now[:error] = "Cannot updating your profile"
         render 'edit'
      end
    end
end

终于在我看来我有:

= form_for(@user) do |f|
  = render 'shared/error_messages', object: f.object
  %div
    = f.label :user_name, …