小编Gle*_*res的帖子

我正在关注教程:http://www.amooma.de/screencasts/2015-01-22-nested_forms-rails-4.2/

我正在使用Rails 5.0.0.1

但是当我注册酒店时,似乎酒店类别必须存在.

1错误禁止此酒店被保存:类别酒店必须存在

我的酒店型号:

class Hotel < ApplicationRecord
    has_many :categories, dependent: :destroy
    validates :name, presence: true
    accepts_nested_attributes_for :categories, reject_if: proc { |attributes| attributes['name'].blank? }, allow_destroy: true
end

我的分类型号:

class Category < ApplicationRecord
  belongs_to :hotel
  validates :name, presence: true
end

我的酒店管理员:

def new
    @hotel = Hotel.new
    @hotel.categories.build
end

def hotel_params
   params.require(:hotel).permit(:name, categories_attributes: [ :id,:name])
end

结束我的_form.html.erb

<%= f.fields_for :categories do |category| %>  
    <div class="room_category_fields">  
      <div class="field">
        <%= category.label :name %><br>
        <%= category.text_field :name %>
      </div>
    </div> …

我尝试了以下但返回为空。

<?php

namespace App\Providers;

use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Facades\Route;
use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;

class AuthServiceProvider extends ServiceProvider {
    public function boot() {

        $routeList = Route::getRoutes();

        foreach ($routeList as $value) {
            dd($value->getPath());
        }

    }

}

我的路线文件：

<?php    
Route::namespace('admin')->group(function () {
    Route::get('admin/post', 'PostController@index')->name('posts');
    Route::get('admin/post/new', 'PostController@new')->name('post_new');
    Route::post('admin/post/save', 'SubjectController@save')->name('post_save');
});

我尝试了几种方法，但无法列出在 web.php 路由文件中创建的路由