未定義のメソッド 'ネストされた属性'モデル

Question

私は2種類のアドレスを作成しようとしています。これを行うために、リスティングと注文に関連付けられた多態的なアドレスモデルを作成しました。私は、リストに新しいアドレスを作成し、フィールドを使用してビューを注文したいと思います。何らかの理由で、これは、リストを作成するときにのみ動作します。注文を作成しようとすると、モデルの注文のために未定義のメソッド 'アドレス'が取得されます。

注：以下のスニペットでは、無関係なコードは省略されています。私は

アプリ/ビュー/リストを持っている私のフォームビューで

address.rb

class Address < ApplicationRecord 
belongs_to :addressable, polymorphic: true, optional: true 
end 

listing.rb

class Listing < ApplicationRecord 
has_many :orders 
has_one :pickup_address, as: :addressable, class_name: "Address", dependent: :destroy 

accepts_nested_attributes_for :pickup_address 
end 

order.rb

class Order < ApplicationRecord 
belongs_to :listing 
has_one :delivery_address, as: :addressable, class_name: "Address", dependent: :destroy 

accepts_nested_attributes_for :delivery_address 
end 

/_form.h私はリストから順序を構築するため、機能のform_forために、私は角括弧を使用することを

<%= form_for(setup_listing(@listing)) do |f| %> 
<%= f.label :description %> 
<%= f.text_area :description, class: 'form-control' %> 

<%= f.label :price %> 
<%= f.text_field :price, class: 'form-control' %> 

<%= f.fields_for :pickup_address do |u| %> 

    <%= u.label :city %> 
    <%= u.text_field :city, class: 'form-control' %> 

    <%= u.label :sector %> 
    <%= u.text_field :sector, class: 'form-control' %> 

    <%= u.label :line_1 %> 
    <%= u.text_field :line_1, class: 'form-control' %> 

    <%= u.label :line_2 %> 
    <%= u.text_field :line_2, class: 'form-control' %> 

    <% end %> 
<%= f.submit "submit", class: "btn btn-primary" %> 
<%end%> 

アプリ/ビュー/受注/ _form.html.erb

<%= form_for([@listing, setup_order(@order)]) do |f| %> 
    <%= f.fields_for :delivery_address do |u| %> 

    <%= u.label :city %> 
    <%= u.text_field :city, class: 'form-control' %> 

    <%= u.label :sector %> 
    <%= u.text_field :sector, class: 'form-control' %> 

    <%= u.label :line_1 %> 
    <%= u.text_field :line_1, class: 'form-control' %> 

    <%= u.label :line_2 %> 
    <%= u.text_field :line_2, class: 'form-control' %> 

    <% end %> 
<%= f.submit "submit", class: "btn btn-primary" %> 
<%end%> 

ノートtml.erb 。

routes.rbを

Rails.application.routes.draw do 
    resources :listings do 
    resources :orders 
    end 
end 

setup_order /機能を一覧表示すること

私は新しいを作成するために使用する

module FormHelper 

    def setup_listing(listing) 
     listing.build_pickup_address if listing.pickup_address.nil? 
     listing 
    end 

    def setup_order(order) 
     order.build_delivery_address if order.delivery_address.nil? 
     order 
    end 

end 

form_helper.rb

アプリ/ヘルパー/から来ていますこの場合は、で提案されているように10。

私が作成し、アドレスがコントローラ再び

listings_controller.rb

def create 
    @listing = current_user.listings.build(listing_params) 
    if @listing.save 
     flash[:success] = "listing created!" 
     redirect_to @listing 
    else 
     render 'new' 
    end 
    end 
    . 
    . 

    private 

    def listing_params 
    params.require(:listing).permit(pickup_address_attributes: [:city, :sector,:line_1, :line_2]) 
    end 

orders_controller.rb

. 
    . 
    def create 
    @listing = Listing.find(params[:listing_id]) 
    @order = @listing.orders.build(order_params) 
    if @order.save 
     redirect_to listings_path 
    else 
     render 'new' 
    end 
    end 
    . 
    . 
    private 

    def order_params 
    params.require(:order).permit(delivery_address_attributes: [:city, :sector, :line_1, :line_2]) 
    end 

で私のparamsに属性を追加することを確認しましたリストは完璧に機能します。新しい注文を作成しようとすると問題が発生します。ありがとうございました！

完全なトレース

activemodel (5.0.0) lib/active_model/attribute_methods.rb:433:in `method_missing' 
activemodel (5.0.0) lib/active_model/validator.rb:149:in `block in validate' 
activemodel (5.0.0) lib/active_model/validator.rb:148:in `each' 
activemodel (5.0.0) lib/active_model/validator.rb:148:in `validate' 
activesupport (5.0.0) lib/active_support/callbacks.rb:405:in `public_send' 
activesupport (5.0.0) lib/active_support/callbacks.rb:405:in `block in make_lambda' 
activesupport (5.0.0) lib/active_support/callbacks.rb:169:in `block (2 levels) in halting' 
activesupport (5.0.0) lib/active_support/callbacks.rb:547:in `block (2 levels) in default_terminator' 
activesupport (5.0.0) lib/active_support/callbacks.rb:546:in `catch' 
activesupport (5.0.0) lib/active_support/callbacks.rb:546:in `block in default_terminator' 
activesupport (5.0.0) lib/active_support/callbacks.rb:170:in `block in halting' 
activesupport (5.0.0) lib/active_support/callbacks.rb:454:in `block in call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:454:in `each' 
activesupport (5.0.0) lib/active_support/callbacks.rb:454:in `call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:101:in `__run_callbacks__' 
activesupport (5.0.0) lib/active_support/callbacks.rb:750:in `_run_validate_callbacks' 
activemodel (5.0.0) lib/active_model/validations.rb:408:in `run_validations!' 
activemodel (5.0.0) lib/active_model/validations/callbacks.rb:113:in `block in run_validations!' 
activesupport (5.0.0) lib/active_support/callbacks.rb:126:in `call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:506:in `block (2 levels) in compile' 
activesupport (5.0.0) lib/active_support/callbacks.rb:455:in `call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:101:in `__run_callbacks__' 
activesupport (5.0.0) lib/active_support/callbacks.rb:750:in `_run_validation_callbacks' 
activemodel (5.0.0) lib/active_model/validations/callbacks.rb:113:in `run_validations!' 
activemodel (5.0.0) lib/active_model/validations.rb:338:in `valid?' 
activerecord (5.0.0) lib/active_record/validations.rb:65:in `valid?' 
activerecord (5.0.0) lib/active_record/validations.rb:82:in `perform_validations' 
activerecord (5.0.0) lib/active_record/validations.rb:44:in `save' 
activerecord (5.0.0) lib/active_record/attribute_methods/dirty.rb:22:in `save' 
activerecord (5.0.0) lib/active_record/transactions.rb:319:in `block (2 levels) in save' 
activerecord (5.0.0) lib/active_record/transactions.rb:395:in `block in with_transaction_returning_status' 
activerecord (5.0.0) lib/active_record/connection_adapters/abstract/database_statements.rb:232:in `block in transaction' 
activerecord (5.0.0) lib/active_record/connection_adapters/abstract/transaction.rb:189:in `within_new_transaction' 
activerecord (5.0.0) lib/active_record/connection_adapters/abstract/database_statements.rb:232:in `transaction' 
activerecord (5.0.0) lib/active_record/transactions.rb:211:in `transaction' 
activerecord (5.0.0) lib/active_record/transactions.rb:392:in `with_transaction_returning_status' 
activerecord (5.0.0) lib/active_record/transactions.rb:319:in `block in save' 
activerecord (5.0.0) lib/active_record/transactions.rb:334:in `rollback_active_record_state!' 
activerecord (5.0.0) lib/active_record/transactions.rb:318:in `save' 
activerecord (5.0.0) lib/active_record/suppressor.rb:41:in `save' 
app/controllers/orders_controller.rb:45:in `create' 
actionpack (5.0.0) lib/action_controller/metal/basic_implicit_render.rb:4:in `send_action' 
actionpack (5.0.0) lib/abstract_controller/base.rb:188:in `process_action' 
actionpack (5.0.0) lib/action_controller/metal/rendering.rb:30:in `process_action' 
actionpack (5.0.0) lib/abstract_controller/callbacks.rb:20:in `block in process_action' 
activesupport (5.0.0) lib/active_support/callbacks.rb:126:in `call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:506:in `block (2 levels) in compile' 
activesupport (5.0.0) lib/active_support/callbacks.rb:455:in `call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:101:in `__run_callbacks__' 
activesupport (5.0.0) lib/active_support/callbacks.rb:750:in `_run_process_action_callbacks' 
activesupport (5.0.0) lib/active_support/callbacks.rb:90:in `run_callbacks' 
actionpack (5.0.0) lib/abstract_controller/callbacks.rb:19:in `process_action' 
actionpack (5.0.0) lib/action_controller/metal/rescue.rb:20:in `process_action' 
actionpack (5.0.0) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action' 
activesupport (5.0.0) lib/active_support/notifications.rb:164:in `block in instrument' 
activesupport (5.0.0) lib/active_support/notifications/instrumenter.rb:21:in `instrument' 
activesupport (5.0.0) lib/active_support/notifications.rb:164:in `instrument' 
actionpack (5.0.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
actionpack (5.0.0) lib/action_controller/metal/params_wrapper.rb:248:in `process_action' 
searchkick (1.3.5) lib/searchkick/logging.rb:153:in `process_action' 
activerecord (5.0.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
actionpack (5.0.0) lib/abstract_controller/base.rb:126:in `process' 
actionview (5.0.0) lib/action_view/rendering.rb:30:in `process' 
actionpack (5.0.0) lib/action_controller/metal.rb:190:in `dispatch' 
actionpack (5.0.0) lib/action_controller/metal.rb:262:in `dispatch' 
actionpack (5.0.0) lib/action_dispatch/routing/route_set.rb:50:in `dispatch' 
actionpack (5.0.0) lib/action_dispatch/routing/route_set.rb:32:in `serve' 
actionpack (5.0.0) lib/action_dispatch/journey/router.rb:39:in `block in serve' 
actionpack (5.0.0) lib/action_dispatch/journey/router.rb:26:in `each' 
actionpack (5.0.0) lib/action_dispatch/journey/router.rb:26:in `serve' 
actionpack (5.0.0) lib/action_dispatch/routing/route_set.rb:725:in `call' 
rack (2.0.1) lib/rack/etag.rb:25:in `call' 
rack (2.0.1) lib/rack/conditional_get.rb:38:in `call' 
rack (2.0.1) lib/rack/head.rb:12:in `call' 
rack (2.0.1) lib/rack/session/abstract/id.rb:222:in `context' 
rack (2.0.1) lib/rack/session/abstract/id.rb:216:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/cookies.rb:613:in `call' 
activerecord (5.0.0) lib/active_record/migration.rb:552:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/callbacks.rb:38:in `block in call' 
activesupport (5.0.0) lib/active_support/callbacks.rb:97:in `__run_callbacks__' 
activesupport (5.0.0) lib/active_support/callbacks.rb:750:in `_run_call_callbacks' 
activesupport (5.0.0) lib/active_support/callbacks.rb:90:in `run_callbacks' 
actionpack (5.0.0) lib/action_dispatch/middleware/callbacks.rb:36:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/executor.rb:12:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/remote_ip.rb:79:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:49:in `call' 
web-console (3.1.1) lib/web_console/middleware.rb:131:in `call_app' 
web-console (3.1.1) lib/web_console/middleware.rb:20:in `block in call' 
web-console (3.1.1) lib/web_console/middleware.rb:18:in `catch' 
web-console (3.1.1) lib/web_console/middleware.rb:18:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call' 
railties (5.0.0) lib/rails/rack/logger.rb:36:in `call_app' 
railties (5.0.0) lib/rails/rack/logger.rb:24:in `block in call' 
activesupport (5.0.0) lib/active_support/tagged_logging.rb:70:in `block in tagged' 
activesupport (5.0.0) lib/active_support/tagged_logging.rb:26:in `tagged' 
activesupport (5.0.0) lib/active_support/tagged_logging.rb:70:in `tagged' 
railties (5.0.0) lib/rails/rack/logger.rb:24:in `call' 
sprockets-rails (3.1.1) lib/sprockets/rails/quiet_assets.rb:13:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/request_id.rb:24:in `call' 
rack (2.0.1) lib/rack/method_override.rb:22:in `call' 
rack (2.0.1) lib/rack/runtime.rb:22:in `call' 
activesupport (5.0.0) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/executor.rb:12:in `call' 
actionpack (5.0.0) lib/action_dispatch/middleware/static.rb:136:in `call' 
rack (2.0.1) lib/rack/sendfile.rb:111:in `call' 
railties (5.0.0) lib/rails/engine.rb:522:in `call' 
puma (3.4.0) lib/puma/configuration.rb:224:in `call' 
puma (3.4.0) lib/puma/server.rb:569:in `handle_request' 
puma (3.4.0) lib/puma/server.rb:406:in `process_client' 
puma (3.4.0) lib/puma/server.rb:271:in `block in run' 
puma (3.4.0) lib/puma/thread_pool.rb:114:in `block in spawn_thread' 

Answer 1

私の問題のためにどんな答えを見つけていない後、私はそのエラーかどうかを確認するために、デフォルトの属性名を設定し、has_manyのににhas_oneから関係を変更するdicededは変わった。

class Order < ApplicationRecord 

    belongs_to :listing 
    has_many :addresses, as: :addressable, dependent: :destroy 

    accepts_nested_attributes_for :delivery_address 

end 

私も自分のコントローラとビューの変更をしたが、再び私はこの方法の代わりに、それはあったはずと「アドレス」の「アドレス」を取得しませんでした。 @eeeeeeanが示唆したように、実際に検証（私はそれらを無関係に検討するための質問では省略した）で検索したので、アドレスの検証はまだありません。ここではモデルの実際のコードです。

class Order < ApplicationRecord 
    validates :address, :seller_id, :buyer_id, :listing_id, presence: true 

    belongs_to :listing 
    belongs_to :buyer, class_name: "User" 
    belongs_to :seller, class_name: "User" 

    has_one :delivery_address, as: :addressable, class_name: "Address", dependent: :destroy 

    accepts_nested_attributes_for :delivery_address 

    enum status: [ :ordered, :shipped, :delivered, :rated ] 

end 

質問でコードを省略したり、通常そうしない場所を確認してください。