Question

我正在关注Michael Hartl的书“Rails Tutorial”，并且需要更改登录的URL以在/members而不是站点的根目录进行渲染。

我尝试过更改home.html.erb：

<% if logged_in? %>
  <div class="row">
    <aside class="col-md-4">
      <section class="user_info">
        <%= render 'shared/user_info' %>
      </section>
      <section class="stats">
        <%= render 'shared/stats' %>
      </section>
      <section class="micropost_form">
        <%= render 'shared/micropost_form' %>
      </section>
    </aside>
    <div class="col-md-8">
      <h3>Micropost Feed</h3>
      <%= render 'shared/feed' %>
    </div>
  </div>
<% else %>
  <%= render 'covers/non_logged_in_home' %>
<% end %>

到

<% if logged_in? %>
  <%= render 'members/index' %>
<% else %>
  <%= render 'covers/non_logged_in_home' %>
<% end %>

并在views / members /中创建一个新的partial，其中包含从上面提取的内容，如下所示：

  <div class="row">
    <aside class="col-md-4">
      <section class="user_info">
        <%= render 'shared/user_info' %>
      </section>
      <section class="stats">
        <%= render 'shared/stats' %>
      </section>
      <section class="micropost_form">
        <%= render 'shared/micropost_form' %>
      </section>
    </aside>
    <div class="col-md-8">
      <h3>Micropost Feed</h3>
      <%= render 'shared/feed' %>
    </div>
  </div>

执行此操作后，微博饲料仍然照常工作，但仍保留在网站的根目录中。我认为这是一个路由问题，但我不知道如何处理它作为routes.rb中微博的唯一路由信息是：

resources :microposts,          only: [:create, :destroy]

更新

Rails.application.routes.draw do

  get 'members/index' #just added; didn't work.

  get 'covers/new_cover' => 'covers#new_cover', :as => :new_cover

  get 'covers/home'

  get 'covers/new'

  get 'covers/create'

  get 'covers/destroy'

  get 'password_resets/new'

  get 'password_resets/edit'

  get 'account_activations/edit'

  get 'sessions/new' 

  root                'covers#home'
  get    'profile'    => 'static_pages#profile'
  get    'tours'   => 'static_pages#tours'
  get    'blog'   => 'static_pages#blog'
  get    'reviews'   => 'static_pages#reviews'
  get    'contact' => 'static_pages#contact'
  get    'signup'  => 'users#new'
  get    'login'   => 'sessions#new'
  post   'login'   => 'sessions#create'
  delete 'logout'  => 'sessions#destroy'
  resources :users do
    member do
      get :following, :followers
    end
  end
  # resources :users
  resources :account_activations, only: [:edit]
  resources :password_resets,     only: [:new, :create, :edit, :update]
  resources :microposts,          only: [:create, :destroy]
  resources :relationships,       only: [:create, :destroy]

  resources :covers, only: [:home, :index, :new, :create, :destroy]

更新2：

更新路线时

get 'members' => 'members#index'

正如@Arslan正确建议的那样，路由成功但在其位置返回了以下错误：

ArgumentError in MembersController#index
First argument in form cannot contain nil or be empty

进一步调查显示此错误是由app/views/members/index.html.erb中包含的以下一个或两个渲染语句引起的：

<%= render 'shared/micropost_form' %>
<%= render 'shared/feed' %>

这些文件的内容是：

# _micropost_form.html.erb
<%= form_for(@micropost, html: { multipart: true }) do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <div class="field">
    <%= f.text_area :content, placeholder: "Compose new micropost (420 chars max)..." %>
  </div>
  <%= f.submit "Post", class: "btn btn-primary" %>
  <span class="picture">
    <%= f.file_field :picture, accept: 'image/jpeg,image/gif,image/png' %>
  </span>
<% end %>

<script type="text/javascript">
  $('#micropost_picture').bind('change', function() {
    size_in_megabytes = this.files[0].size/1024/1024;
    if (size_in_megabytes > 5) {
      alert('Maximum file size is 5MB. Please choose a smaller file.');
    }
  });
</script>

和

# _feed.html.erb
<% if @feed_items.any? %>
  <ol class="microposts">
    <%= render @feed_items %>
  </ol>
  <%= will_paginate @feed_items %>
<% end %>

Answer 1

在SesssionController课程中，您可以将redirect方法更改为指向/members：

class SessionsController < ApplicationController

# other code
  def create
    user = User.find_by(email: params[:session][:email].downcase)
    if user && user.authenticate(params[:session][:password])
      log_in user
      redirect_to '/members'
    else
      flash.now[:danger] = 'Invalid email/password combination'
      render 'new'
    end
  end
end

现在，只要用户成功登录您的网站，他/她就会被重定向到/members页面。

修改

get 'members/index'如果你有一个名为MembersController的类，并且在该类中有一个名为index的方法，这将有效。与此同时，您还应该在app/views/members/index.htmlerb处有一个视图。

并明确表达如下：

get 'members/index' => 'members#index'

但是如果你想调用任何其他控制器的任何方法，你可以这样做：

get 'members/index' => 'any_other_controller#any_method' # Remember controller name should be in plural: 'members', 'users'

如何从Rails Tutorial中更改“micropost feed”URL？

1 个答案: