ShopProfiles中的ActionController :: UrlGenerationError＃index

我是rails新手。我已經用於shop_products索引定義控制器如下ShopProfiles中的ActionController :: UrlGenerationError＃index

shop_profile.rb

class ShopProfile < ActiveRecord::Base 
    has_and_belongs_to_many :users 
    has_one :shop_inventory_detail 
end

shop_product.rb

class ShopProduct < ActiveRecord::Base 
    belongs_to :shop_profile 
end

shop_products_controller.rb

class ShopProductsController < ApplicationController 
    def index 
    @shop_profile = ShopProfile.find(params[:shop_profile_id]) 
    @products = @shop_profile.shop_products 
    end 
end

index.html.erb在shopprofiles

<%= link_to 'All Products', shop_profile_shop_products_path(@shop_profile) ,class: 'btn btn-primary' %>

在此行中我得到錯誤

ActionController::UrlGenerationError in ShopProfiles#index 
Showing /home/mindfire/Desktop/project/training/Rails/grocery-shop/app/views/shop_profiles/index.html.erb where line #4 raised: 

No route matches {:action=>"index", :controller=>"shop_products", :shop_profile_id=>nil} missing required keys: [:shop_profile_id]

路線

shop_profile_shop_products  GET /users/shop_profiles/:shop_profile_id/shop_products(.:format)   shop_products#index 
           POST /users/shop_profiles/:shop_profile_id/shop_products(.:format)   shop_products#create 
new_shop_profile_shop_product GET /users/shop_profiles/:shop_profile_id/shop_products/new(.:format)  shop_products#new 
edit_shop_profile_shop_product GET /users/shop_profiles/:shop_profile_id/shop_products/:id/edit(.:format) shop_products#edit 
    shop_profile_shop_product GET /users/shop_profiles/:shop_profile_id/shop_products/:id(.:format)  shop_products#show 
           PATCH /users/shop_profiles/:shop_profile_id/shop_products/:id(.:format)  shop_products#update 
           PUT /users/shop_profiles/:shop_profile_id/shop_products/:id(.:format)  shop_products#update 
           DELETE /users/shop_profiles/:shop_profile_id/shop_products/:id(.:format)  shop_products#destroy

當我通過shop_profile_id手動我ge t所需的頁面。在此先感謝您的幫助。

shop_profiles_controller.rb

class ShopProfilesController < ApplicationController 
before_action :authenticate_user!, except: :show 
after_action :verify_authorized, only: :shop_index 

def new 
    @shop = ShopProfile.new 
end 

def index 
    @shops = current_user.shop_profiles 
end 

def show 
    @shop_profile = ShopProfile.find_by(id: params[:id]) 
    @items = @shop_profile.shop_products.group(:category_id).where(category_id: params[:category_id]) 
end 

def create 
    @shop = ShopProfile.new(shop_params) 
    @shop.build_address(address_params_shopkeeper) 
    if current_user.shop_profiles << @shop 
     flash[:success] = 'Shop Details added' 
     redirect_to root_path 
    else 
     flash[:error] = 'Shop Details not added' 
     render 'new' 
    end 
end 

def edit 
    @shop = current_user.shop_profiles.find_by(id: params[:id]) 
end 

def update 
    @shop = current_user.shop_profiles.find_by(id: params[:id]) 
    if @shop.update_attributes(shop_params) and @shop.address.update_attributes(address_params_shopkeeper) 
     flash[:success] = 'Updated Successfully' 
     redirect_to shop_profiles_path 
    else 
     flash[:danger] = 'Shop Details not Updated' 
     render 'edit' 
    end 
end 
end

但我認爲這無關shop_profiles_controller。我從那裏打電話給shop_product索引頁。 @Зелёный

從你的錯誤日誌

錯誤日誌

Started GET "https://stackoverflow.com/users/shop_profiles" for 127.0.0.1 at 2016-03-31 16:36:34 +0530 
Processing by ShopProfilesController#index as HTML 
User Load (0.4ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 ORDER BY `users`.`id` ASC LIMIT 1 
Rendered shop_profiles/index.html.erb within layouts/application (2.3ms) 
Completed 500 Internal Server Error in 8ms (ActiveRecord: 0.4ms) 

ActionView::Template::Error (No route matches {:action=>"index", :controller=>"shop_products", :shop_profile_id=>nil} missing required keys: [:shop_profile_id]): 
1: <div> 
2:  <%= link_to 'Add Shop' ,new_shop_profile_path, class: 'btn btn-primary' %> 
3:  <%= link_to 'Add New Product', new_product_path, class: 'btn btn-primary', method: :get %> 
4:  <%= link_to 'All Products', shop_profile_shop_products_path(@shop_profile) ,class: 'btn btn-primary' %> 
5: </div> 
6: <div> 
7:  <% if [email protected]? %> 
app/views/shop_profiles/index.html.erb:4:in `_app_views_shop_profiles_index_html_erb___2474323268141556614_25251260' 


Rendered /home/mindfire/.rvm/gems/[email protected]/gems/actionpack-4.2.5.1/lib/action_dispatch/middleware/templates/rescues/_source.erb (9.0ms)............

來源

2016-03-31 Bikram Sao

你確定'@ shop_profile'不是'nil'嗎，你是否嘗試過直接傳遞一個ID'shop_profile_shop_products_path（@ shop_profile.id）'？ –

試試這個'shop_profile_shop_products_path（shop_profile_id：@ shop_profile.id）' – illusionist

'ShopProfiles＃index'中的ActionController :: UrlGenerationError - 你的錯誤說這個問題出現在ShopProfilesController中。你可以發佈你的ShopProfilesController控制器嗎？ – dp7

謝謝，看起來你試圖發送一個在shop_profile_shop_products_pathnil這是造成問題。

確保@shop_profile不是nil。

<%= link_to 'All Products', shop_profile_shop_products_path(@shop_profile) ,class: 'btn btn-primary' if @shop_profile.present? %>

希望能解決你的問題：

，如果你想避免這個問題，你可以做以下！

來源

2016-03-31 12:26:11 dp7

謝謝大家的回覆。問題是用戶可以擁有多個商店配置文件。因此，我遍歷所有商店配置文件並調用索引方法並獲得所需的頁面。

來源

2016-04-01 04:30:13

ShopProfiles中的ActionController :: UrlGenerationError＃index

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