1
我的「辦公室」視圖顯示在產品數據庫中找到的辦公室產品。此視圖中顯示了多個產品，因此我希望用戶能夠點擊辦公室產品，然後轉到顯示該產品詳情的「展示」視圖。將產品信息從一個視圖傳遞到另一個視圖
我的存儲控制器是這樣的： -
class StoreController < ApplicationController
def index
@products = Product.all
end
def show
@products = Product.find_by(:id)
if @products.nil?
redirect_to action: :index
end
end
end
辦公室視圖內的link_to代碼如下所示： -
<p class="showArticle"><%= link_to 'Show Article', store_show_path %></p>
爲在Show View產品的代碼看起來是這樣的： -
<%= @products.title(:id) %>
辦公室產品在辦公室視圖中正確顯示。當點擊產品link_to時，瀏覽器使用action: :index重定向，因爲@products.nil?被評估爲true。
我應該如何將這些產品的詳細信息傳遞到show view以便看到產品細節？
以下是我的routes.rb文件： -
Easygifts::Application.routes.draw do
get "store/index"
get "store/writing"
get "store/office"
get "store/time"
get "store/home"
get "store/wellness"
get "store/travel"
get "store/bags"
get "store/leisure"
get "store/show"
resources :products
# The priority is based upon order of creation: first created -> highest priority.
# See how all your routes lay out with "rake routes".
# You can have the root of your site routed with "root"
root 'store#index', as: 'store'
# Example of regular route:
# get 'products/:id' => 'catalog#view'
# Example of named route that can be invoked with purchase_url(id: product.id)
# get 'products/:id/purchase' => 'catalog#purchase', as: :purchase
# Example resource route (maps HTTP verbs to controller actions automatically):
# resources :products
# Example resource route with options:
# resources :products do
# member do
# get 'short'
# post 'toggle'
# end
#
# collection do
# get 'sold'
# end
# end
# Example resource route with sub-resources:
# resources :products do
# resources :comments, :sales
# resource :seller
# end
# Example resource route with more complex sub-resources:
# resources :products do
# resources :comments
# resources :sales do
# get 'recent', on: :collection
# end
# end
# Example resource route with concerns:
# concern :toggleable do
# post 'toggle'
# end
# resources :posts, concerns: :toggleable
# resources :photos, concerns: :toggleable
# Example resource route within a namespace:
# namespace :admin do
# # Directs /admin/products/* to Admin::ProductsController
# # (app/controllers/admin/products_controller.rb)
# resources :products
# end
end
以下是應用程序佈局： -
<!DOCTYPE html>
<html>
<head>
<title>Easy Gifts UK Ltd - Home of promotional gifts</title>
<%= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true %>
<%= javascript_include_tag "application", "data-turbolinks-track" => true %>
<%= csrf_meta_tags %>
</head>
<body class='<%= controller.controller_name %>'>
<div id="wrapper">
<div id="branding">
<%=link_to(image_tag("easyGiftsLogo.jpg", :width => "210", :height => "70", :alt => "Easy Gifts UK Logo"), store_path) %>
<div id="search2">
<p>search field</p>
</div>
</div>
<div id="content">
<%= yield %>
</div>
<div id="mainNav">
<ul>
<li><%= link_to_unless_current('Writing', { action: 'writing' }) %></li>
<li><%= link_to_unless_current('Office', { action: 'office' }) %></li>
<li><%= link_to_unless_current('Time', { action: 'time'}) %></li>
<li><%= link_to_unless_current('Home', { action: 'home'}) %></li>
<li><%= link_to_unless_current('Wellness', {action: 'wellness'}) %></li>
<li><%= link_to_unless_current('Travel', {action: 'travel'}) %></li>
<li><%= link_to_unless_current('Bags', {action: 'bags'}) %></li>
<li><%= link_to_unless_current('Leisure', {action: 'leisure'}) %></li>
</ul>
</div>
<div id="footer">
<ul>
<li><%= link_to 'Admin', products_path %></li>
<li><a href="#">link 2</a></li>
<li><a href="#">link 3</a></li>
</ul>
</div>
</div>
</body>
</html>
而下面是部分爲 '辦公室' -
<%= image_tag("office (1).jpg", :class => "imgBorder", :width => "808", :height =>"228", :alt => "Office section - Easy Gifts UK Ltd") %>
<%= render "notice" %>
<% @products.each do |office| %>
<div class="item">
<%= link_to image_tag(office.image_url), image_path(office.image_url), class: 'fancybox' %>
<p><strong><%= office.item_code%></strong>
</br><em><%= truncate(office.title, length: 18) %></em></p>
<p class="showArticle"><%= link_to 'Show Article', store_show_path %></p>
<p class="addTo"><a href="#">Quote this item</a></p>
</div>
<% end %>
<p class="clear"><%= will_paginate @products %></p>
最後以下是'show'視圖的部分內容： -
<h2>Individual Product</h2>
<%= @products.title(:id) %>
你現在看到的確實不是什麼，因爲我只是測試獲取信息。
以下是耙路線的結果： -
c:\Sites\work\easygifts>rake routes
Prefix Verb URI Pattern Controller#Action
store_index GET /store/index(.:format) store#index
store_writing GET /store/writing(.:format) store#writing
store_office GET /store/office(.:format) store#office
store_time GET /store/time(.:format) store#time
store_home GET /store/home(.:format) store#home
store_wellness GET /store/wellness(.:format) store#wellness
store_travel GET /store/travel(.:format) store#travel
store_bags GET /store/bags(.:format) store#bags
store_leisure GET /store/leisure(.:format) store#leisure
store_show GET /store/show(.:format) store#show
products GET /products(.:format) products#index
POST /products(.:format) products#create
new_product GET /products/new(.:format) products#new
edit_product GET /products/:id/edit(.:format) products#edit
product GET /products/:id(.:format) products#show
PATCH /products/:id(.:format) products#update
PUT /products/:id(.:format) products#update
DELETE /products/:id(.:format) products#destroy
store GET / store#index
您沒有在鏈接中傳遞您的產品，但它應該會給您一個路由錯誤。你沒有得到任何錯誤？ – Mandeep 2014-09-03 17:01:26
你可以顯示你的routes.rb文件和你的完整視圖 – Mandeep 2014-09-03 17:07:07
嗨Mandeep，沒有路由錯誤，沒有任何錯誤，而不是點擊用戶被重定向直接返回'索引'頁面。 – 2014-09-04 09:27:46