Ruby on rails 未定义的局部变量或方法“user'；”如何引用用户？

我试图在html.erb页面中呈现用户列表，但得到的错误是用户变量未定义

据我所知，为了让视图采用@users变量，需要在链接到视图路由的控制器中调用它。我在下面尝试过，但我认为我调用控制器是错误的（因此定义@users的index方法也是错误的）。我将如何着手修复此问题，以便使用用户列表呈现部分内容

views/pages/contacts.html.erb:

<table class='table table-condensed'>
  <thead>
    <tr>
      <th>Email</th>
      <th>Action</th>
    </tr>
  </thead>
  <tbody>
    <%= render 'contact', collection: @users, as: :user %>
  </tbody>
</table>

<%= content_tag :tr, id: dom_id(user) do %>
    <td><%= user.email %></td>
    <td>
      <%= link_to 'Add Contact', [:new, :contactship, id: user], remote: true unless current_user.has_contactship?(user) %>
      <%# or link_to 'Add Contact', new_contactship_path(id: user), remote: true %>
      <%= link_to 'Accept Request', [:contactships, id: user], method: :post, remote: true if current_user.requested_contacts_with?(user) %>
      <%= link_to 'Remove Request', [:contactship, id: user], method: :delete, remote: true if current_user.pending_contacts_with?(user) %>
      <%= link_to 'Remove Friend', [:contactship, id: user], method: :delete, remote: true if current_user.contacts_with?(user) %>
    </td>
<% end %>

Rails.application.routes.draw do
  resources :posts
  resources :contactships, only: [:new, :create, :destroy]
  devise_for :users
  authenticated :user do
    root "pages#my_circles", as: :authenticated_root
    get "/app/views/pages/to_post.html.erb", to: "pages#to_post", as: "to_post"
    get "/app/views/pages/my_vault.html.erb", to: "pages#my_vault", as: "my_vault"
    get "/app/views/pages/my_settings.html.erb", to: "pages#my_settings", as: "my_settings"
    get "/app/views/pages/contacts.html.erb", to: "pages#contacts", as: "contacts" #THIS ROUTE
  end
  root 'pages#home'
  namespace :api, defaults: { format: :json } do
    namespace :v1 do
      resources :circles, only: [:index, :show, :create, :update, :destroy]
    end
  end
end

class PagesController < ApplicationController
  def index
    @users = User.all
  end

控制器/页面\u控制器.rb:

<table class='table table-condensed'>
  <thead>
    <tr>
      <th>Email</th>
      <th>Action</th>
    </tr>
  </thead>
  <tbody>
    <%= render 'contact', collection: @users, as: :user %>
  </tbody>
</table>

<%= content_tag :tr, id: dom_id(user) do %>
    <td><%= user.email %></td>
    <td>
      <%= link_to 'Add Contact', [:new, :contactship, id: user], remote: true unless current_user.has_contactship?(user) %>
      <%# or link_to 'Add Contact', new_contactship_path(id: user), remote: true %>
      <%= link_to 'Accept Request', [:contactships, id: user], method: :post, remote: true if current_user.requested_contacts_with?(user) %>
      <%= link_to 'Remove Request', [:contactship, id: user], method: :delete, remote: true if current_user.pending_contacts_with?(user) %>
      <%= link_to 'Remove Friend', [:contactship, id: user], method: :delete, remote: true if current_user.contacts_with?(user) %>
    </td>
<% end %>

Rails.application.routes.draw do
  resources :posts
  resources :contactships, only: [:new, :create, :destroy]
  devise_for :users
  authenticated :user do
    root "pages#my_circles", as: :authenticated_root
    get "/app/views/pages/to_post.html.erb", to: "pages#to_post", as: "to_post"
    get "/app/views/pages/my_vault.html.erb", to: "pages#my_vault", as: "my_vault"
    get "/app/views/pages/my_settings.html.erb", to: "pages#my_settings", as: "my_settings"
    get "/app/views/pages/contacts.html.erb", to: "pages#contacts", as: "contacts" #THIS ROUTE
  end
  root 'pages#home'
  namespace :api, defaults: { format: :json } do
    namespace :v1 do
      resources :circles, only: [:index, :show, :create, :update, :destroy]
    end
  end
end

class PagesController < ApplicationController
  def index
    @users = User.all
  end

class PagesController

谢谢

class PagesControllerclass PagesController < ApplicationController
  def index
    @users = User.all
  end

...

def索引 @users=User.all 结束 ... 将contacts.html.erb重命名为index.html.erb

<table class='table table-condensed'>
  <thead>
    <tr>
      <th>Email</th>
      <th>Action</th>
    </tr>
  </thead>
  <tbody>
    <%= render partial: 'contact', collection: @users, as: :user %>
  </tbody>
</table>

index.html.erb

<table class='table table-condensed'>
  <thead>
    <tr>
      <th>Email</th>
      <th>Action</th>
    </tr>
  </thead>
  <tbody>
    <%= render partial: 'contact', collection: @users, as: :user %>
  </tbody>
</table>

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请在视图/页面中发布index.html.erb视图，这是将由页面控制器索引操作呈现的文件嘿，詹姆斯，我没有index.html.erb视图。我要呈现的页面是contacts.html.erb，如果我使用

get/app/views/pages/contacts.html.erb”，则“pagesාindex”，改为“contacts”

在我的路由中？运行rails服务器的终端中显示的输出，因此您的日志文件将显示正在使用哪些参数处理控制器操作（如果有的话），只需确认您看到类似于

Started get…

的内容，然后是

processing by PagesController#index as HTML

控制器操作负责呈现视图。Rails magic将在以控制器命名的相关视图文件夹中自动呈现以操作命名的视图。如果您想要呈现不同的视图，那么索引操作需要调用render方法

render'contacts'

您正在使用Rails，因此无法自动利用Rails功能，但这还不止于此。index.html文件在任何web应用程序的任何文件夹中都是标准的，而不仅仅是Railso。您的URL中的路径将更有意义