我正在尝试渲染以下部分内容：
<% content_for :admin_content do %>
<h3>Listing All Accounts</h3>
<%= paginate (@accounts) %>
<table id="indexTable" class="table table-striped">
...
</table>
<%= paginate (@accounts) %>
<br>
<%= link_to 'New Account', new_account_path %>
<% end %>
（还有其他类似的部分）
...采用以下布局：
<!DOCTYPE html>
<html>
<head>
...
</head>
<body>
<%= render 'navigation' %>
<% if notice %>
<p class="alert alert-success"><%= notice %></p>
<% end %>
<% if alert %>
<p class="alert alert-danger"><%= alert %></p>
<% end %>
<main>
<%= render partial: 'admin_navigation' %>
<%= yield :admin_content %>
</main>
<footer>
...
</footer>
</body>
</html>
我尝试使用content_for的原因是，我还有其他一些页面，这些页面与上面的部分相似，当在导航中单击链接时，我想呈现这些页面：
<div id="panel">
<div class="navbar subnav navbar-inverse admin-nav" role="navigation">
<div class="navbar-inner">
<div class="container-fluid">
<h2>Admin Dashboard</h2>
<ul class="pager subnav-pager">
<div class="btn-group btn-group-justified" role="group" aria-label="navigation">
<span role=button><%= link_to "Manage Accounts", {:action=>"manage_accounts"}, :class => "btn btn-primary" %></span>
<span role=button><%= link_to "Manage Customers", {:action=>"manage_customers"}, :class => "btn btn-primary" %></span>
<span role=button><%= link_to "Manage Transactions", {:action=>"manage_acct_transactions"}, :class => "btn btn-primary" %></span>
</div>
</ul>
</div>
</div>
</nav>
</div>
上面的链接调用控制器中的各个方法，如下所示：
def manage_accounts
@accounts = Account.order('id').page(params[:page]).per(15)
render partial: 'manage_accounts'
end
def manage_customers
@customers = Customer.order('lastname').page(params[:page]).per(15)
render partial: 'manage_customers'
end
def manage_acct_transactions
@acct_transactions = AcctTransaction.order('date DESC').page(params[:page]).per(15)
render partial: 'manage_acct_transactions'
end
但是，当您单击导航中的链接时，它只会显示一个空白页面，根本没有html。控制台说对象已按照控制器加载，并且正在渲染部分对象。但是在哪呢？
我尝试了各种方法来使它起作用。我得到的最接近的实际上是没有content_for / yield的，只是调用了该方法，这当然使部分视图好像是它自己的页面一样（坏）。曾经有一个叫做replace_html的东西可能会适合我想做的事情，但是我使用的是Rails 4.1.8。
最初，我使用AJAX设置了此导航，但是在这里不起作用。这些部分具有CRUD操作和重定向的链接。使用AJAX会导致各种CSRF错误，并且似乎为应该非常简单的内容增加了不必要的复杂性。
为什么上面的代码不呈现任何内容？
我采用错误的方法吗？
谢谢
编辑：为页面请求添加日志。
Started GET "/administrators/145a435c-6632-4d54-aca3-5e834b9e2d41/adminview" for 127.0.0.1 at 2015-04-01 07:58:41 -0400
Processing by AdministratorsController#adminview as HTML
Parameters: {"id"=>"145a435c-6632-4d54-aca3-5e834b9e2d41"}
[1m[36mUser Load (0.6ms)[0m [1mSELECT `users`.* FROM `users` WHERE `users`.`id` = x'145a435c66324d54aca35e834b9e2d41' ORDER BY `users`.`id` ASC LIMIT 1[0m
Rendered administrators/adminview.html.erb within layouts/admin (13.7ms)
Rendered application/_navigation.html.erb (1.4ms)
Rendered application/_admin_navigation.html.erb (1.8ms)
Completed 200 OK in 212ms (Views: 206.9ms | ActiveRecord: 0.6ms)
Started GET "/administrators/145a435c-6632-4d54-aca3-5e834b9e2d41/manage_accounts" for 127.0.0.1 at 2015-04-01 07:58:45 -0400
Processing by AdministratorsController#manage_accounts as HTML
Parameters: {"id"=>"145a435c-6632-4d54-aca3-5e834b9e2d41"}
[1m[35mUser Load (0.6ms)[0m SELECT `users`.* FROM `users` WHERE `users`.`id` = x'145a435c66324d54aca35e834b9e2d41' ORDER BY `users`.`id` ASC LIMIT 1
[1m[36m (49.0ms)[0m [1mSELECT COUNT(*) FROM `accounts`[0m
[1m[35mAccount Load (11.8ms)[0m SELECT `accounts`.* FROM `accounts` ORDER BY id LIMIT 15 OFFSET 0
[1m[36mCustomer Load (12.7ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 490181591 LIMIT 1[0m
[1m[35mCustomer Load (0.7ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 189365990 LIMIT 1
[1m[36mCustomer Load (0.5ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 24420774 LIMIT 1[0m
[1m[35mCustomer Load (0.5ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 772684056 LIMIT 1
[1m[36mCustomer Load (0.5ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 862455622 LIMIT 1[0m
[1m[35mCustomer Load (0.4ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 417734356 LIMIT 1
[1m[36mCustomer Load (0.4ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 220490343 LIMIT 1[0m
[1m[35mCustomer Load (0.4ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 685817728 LIMIT 1
[1m[36mCustomer Load (0.4ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 53991993 LIMIT 1[0m
[1m[35mCustomer Load (0.4ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 676540929 LIMIT 1
[1m[36mCustomer Load (0.4ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 726000565 LIMIT 1[0m
[1m[35mCustomer Load (0.4ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 554199658 LIMIT 1
[1m[36mCustomer Load (0.6ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 767280416 LIMIT 1[0m
[1m[35mCustomer Load (0.6ms)[0m SELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 237301229 LIMIT 1
[1m[36mCustomer Load (0.6ms)[0m [1mSELECT `customers`.* FROM `customers` WHERE `customers`.`id` = 209732030 LIMIT 1[0m
Rendered administrators/_manage_accounts.html.erb (194.7ms)
Completed 200 OK in 217ms (Views: 132.9ms | ActiveRecord: 80.8ms)
另外，如果可以解决此问题，那么这里是route.rb。
Rails.application.routes.draw do
devise_for :users, :controllers => { :registrations => "registrations" }
devise_scope :user do
post "/accounts/adminview" => "devise/sessions#new"
end
root 'home#index'
get 'home/about'
get 'home/help'
get 'accounts/add_account', to: 'accounts#new'
post 'accounts/add_account', to: 'accounts#create'
resources :administrators do
member do
get :adminview
get :manage_accounts
get :manage_customers
get :manage_acct_transactions
end
end
resources :users do
resource :customers
resource :accounts
resource :addresses
end
resources :accounts do
resource :acct_transactions
end
resources :account_types, :accounts, :addresses, :administrators, :customers, :transaction_types, :acct_transactions, :users
end
再次，根据日志，它应该正在加载部分_manage_accounts，但是我只看到一个空白页。我尝试使用路径助手，但是会引发“缺少模板”错误。尝试了许多其他方法，而不是使用动作方法，但我仍然得到相同的结果。
为什么要渲染局部视图作为操作的视图？
def manage_accounts
@accounts = Account.order('id').page(params[:page]).per(15)
render partial: 'manage_accounts'
end
这样的调用render partial只会渲染局部内容，而不会加载布局。如果需要布局（听起来确实很不错），请将该文件重命名为普通视图app/views/administrators/manage_accounts.html.erb，然后render从操作中完全删除该调用。
我还建议将每条manage路由拆分到各自的控制器中，这样您将拥有app/views/admin/accounts/index.html.erb，这将成为管理帐户的新视图。我建议这样做是因为它符合Rails应用程序的更传统的CRUD设计。
本文收集自互联网，转载请注明来源。
如有侵权，请联系[email protected] 删除。
我来说两句