Ruby on rails 在视图中使用另一个模型导致测试错误
app/views/products/index.html.erb:Ruby on rails 在视图中使用另一个模型导致测试错误,ruby-on-rails,ruby,testing,view,Ruby On Rails,Ruby,Testing,View,app/views/products/index.html.erb: <p id="notice"><%= notice %></p> <%= render 'search' %> <h1>Listing Products</h1> <br> <%= will_paginate @products %> <% if @products.present? %> <table&
<p id="notice"><%= notice %></p>
<%= render 'search' %>
<h1>Listing Products</h1>
<br>
<%= will_paginate @products %>
<% if @products.present? %>
<table>
<thead>
<tr>
<th>Title</th>
<th>Description</th>
<th>Image</th>
<th>Price</th>
<th>Category</th>
<th colspan="3"></th>
</tr>
</thead>
<tbody>
<% @products.each do |product| %>
<tr>
<td><%= product.title %></td>
<td><%= product.description %></td>
<td><%= image_tag product.photo.url(:small) %></td>
<td><%= number_to_currency(product.price, :unit => '$') %></td>
<td><%= link_to Category.find(product.category_id).name, category_path(product.category_id) %></td>
<td><%= link_to 'Show', product %></td>
<% if current_user.try(:admin?) %>
<td><%= link_to 'Edit', edit_product_path(product) %></td>
<td><%= link_to 'Destroy', product, method: :delete, data: { confirm: 'Are you sure?' } %></td>
<% end %>
<td><a href="/cart/<%= product.id %>">Add To Cart</a></td>
</tr>
<% end %>
</tbody>
</table>
<% else %>
<% if params[:search].present? %>
<p>There are no products containing the term(s) <b><%= params[:search] %></b>.</p>
<% else %>
<p>There are no any products found in database.</p>
<% end %>
<% end %>
<br>
<% if current_user.try(:admin?) %>
<%= link_to 'New Product', new_product_path %>
<% end %>
<p id="notice"><%= notice %></p>
<p>
<strong>Title:</strong>
<%= @product.title %>
</p>
<p>
<strong>Description:</strong>
<%= @product.description %>
</p>
<p>
<strong>Image:</strong>
<%= image_tag @product.photo.url(:original) %>
</p>
<p>
<strong>Price:</strong>
<%= @product.price %>
</p>
<p>
<strong>Category:</strong>
<%= @product.category.name %>
</p>
<%= social_share_button_tag(@product.title, :url => request.original_url, :image => root_url + @product.photo.url(:small), desc: @product.description, via: "SCOR") %>
<% if current_user.try(:admin?) %>
<%= link_to 'Edit', edit_product_path(@product) %> |
<% end %>
<%= link_to 'Back', products_path %>
导致这些错误的原因:
1) Error:
ProductsControllerTest#test_should_get_index:
ActionView::Template::Error: Couldn't find Category with 'id'=1
app/views/products/index.html.erb:31:in `block in _app_views_products_index_html_erb___969781135508440478_70267650596940'
app/views/products/index.html.erb:25:in `_app_views_products_index_html_erb___969781135508440478_70267650596940'
test/controllers/products_controller_test.rb:15:in `block in <class:ProductsControllerTest>'
2) Error:
ProductsControllerTest#test_should_show_product:
ActionView::Template::Error: undefined method `name' for nil:NilClass
app/views/products/show.html.erb:25:in `_app_views_products_show_html_erb___1500506684449289207_70267650787820'
test/controllers/products_controller_test.rb:36:in `block in <class:ProductsControllerTest>'
及
如果要查看整个项目:在产品装置中,定义一个类别为1的产品 运行测试时,它找不到id为1的类别 在
测试/夹具/产品.yml
中:
替换:
category_id: 1
link_to Category.find(product.category_id).name, category_path(product.category_id)
借
为什么是“一”?因为在test/fixtures/categories.yml
中,您定义了一个标记为one的类别:
one:
name: New T-Shirts
desc: Example category description
您不应在装置中引用id,而应使用关联
关于这个主题的一篇好文章:
此外,您还应替换:
link_to Category.find(product.category_id).name, category_path(product.category_id)
借
我很高兴能帮助你
category: one
one:
name: New T-Shirts
desc: Example category description
link_to Category.find(product.category_id).name, category_path(product.category_id)
link_to product.category.name, category_path(product.category)