Rails 3.2，没有路由匹配{：controller =>'xxx'：action =>'xxx' } [英] Rails 3.2, No Route Matches { :controller=>'xxx' :action=>'xxx" }

问题描述

我正在尝试使用复选框形式编辑多个记录，如此Railscast 。从那时起，Rails发生了变化，我在路由和表单方面遇到了麻烦。

I'm trying to edit multiple records with a checkbox form as shown in this Railscast. Rails has changed since then and I'm having trouble with routing and forms.

我有一个PeopleController，我正在尝试制作一个可以编辑所有表单的表单一次拨打电话号码。是的，我知道这不是一个有用的功能，因为通常没有理由将每个人的电话号码都更改为相同的东西，但是我只是用它来使代码适应-而且不起作用！

I have a PeopleController and I'm trying to make a form that will edit all of their phone numbers at once. Yes, I know this isn't a useful function, as there is normally no reason to change everyone's phone numbers to the same thing, but I'm just using this to get comfortable with the code - and it isn't working!

这就是我所拥有的：

people_controller：

people_controller:

class PeopleController < ApplicationController
  helper_method :sort_column, :sort_direction

  def index
    @people = Person.order(sort_column + " " + sort_direction)

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @people }
    end
  end

  # GET /people/1
  # GET /people/1.json
  def show
    @person = Person.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @person }
    end
  end

  # GET /people/new
  # GET /people/new.json
  def new
    @person = Person.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @person }
    end
  end

  # GET /people/1/edit
  def edit
    @person = Person.find(params[:id])
  end

  # POST /people
  # POST /people.json
  def create
  ...
  end

  # PUT /people/1
  # PUT /people/1.json
  def update
  ...
  end

  def update_multiple
    @people = Person.find(params[:people_ids])
    @people.each do |person|
      person.update_attributes!(params[:person].reject { |k,v| v.blank? })
    end
    flash[:notice] = "Updated people"
    redirect_to people_path
  end

  # DELETE /people/1
  # DELETE /people/1.json
  def destroy
  ...
  end

  private

  def sort_column
    Person.column_names.include?(params[:sort]) ? params[:sort] : "name"
  end

  def sort_direction
    %w[asc desc].include?(params[:direction]) ? params[:direction] : "asc"
  end

end

index.html.erb：

index.html.erb:

<h1>Listing people</h1>
<% form_tag edit_multiple_people_path do %>
<table>
  <tr>
    <th></th>
    <th><%= sortable "name" %></th>
    <th><%= sortable "phone" %></th>
    <th><%= sortable "created_at" %></th>
    <th></th>
    <th></th>
    <th></th>
  </tr>

<% @people.each do |person| %>
  <tr>
    <td><%= check_box_tag "people_ids[]", person.id %></td>
    <td><%= person.name %></td>
    <td><%= person.phone %></td>
    <td><%= person.created_at %></td>
    <td><%= link_to 'Show', person %></td>
    <td><%= link_to 'Edit', edit_person_path(person) %></td>
    <td><%= link_to 'Destroy', person, method: :delete, data: { confirm: 'Are you sure?' } %></td>
  </tr>
<% end %>
</table>
<% # submit_tag "Edit Checked" %>
<% end %>
<br />

<%= link_to 'New Person', new_person_path %>

edit_multiple.html.erb：

edit_multiple.html.erb:

<%= form_for :person, :url => update_multiple_path, :html => { :method => :put } do |f| %>
  <ul>
    <% @people.each %>
      <li>
        <%= hidden_field_tag "people_ids[]", person.id %>
        <%=h person.name %>
      </li>
    <% end %>
  </ul>

  <p>
    <%= f.label :phone %><br />
    <%= f.text_field :phone %>
  </p>

  <p><%= f.submit "Submit" %></p>
<% end %>

Routes.rb：

Routes.rb:

  resources :people do
    collection do
      put 'update_multiple'
    end
  end

耙路：

update_multiple_people PUT    /people/update_multiple(.:format) people#update_multiple
                people GET    /people(.:format)                 people#index
                       POST   /people(.:format)                 people#create
            new_person GET    /people/new(.:format)             people#new
           edit_person GET    /people/:id/edit(.:format)        people#edit
                person GET    /people/:id(.:format)             people#show
                       PUT    /people/:id(.:format)             people#update
                       DELETE /people/:id(.:format)             people#destroy

编辑：

我的路线w搞砸了。它们现在可以正常工作，如上所示。

My routes were messed up. They are now working properly as shown above.

推荐答案

您正在混合单数和复数资源。 edit_multiple_path 路由当前配置为单一资源，这意味着它希望将单个 Person 作为参数传递。但是，根据定义，您要尝试一次更新多个人–在这种情况下，使用单一路线没有意义。

You're conflating singular and plural resources. The edit_multiple_path route is currently configured as a singular resource, meaning that it expects a single Person to be passed as an argument. However, by definition, you're trying to update multiple people at a single time – it doesn't make sense to use a singular route, in this case.

，请尝试使用收藏路线：

# config/routes.rb
resources :people
    collection do
        post 'update_multiple/:people_ids', :action => 'update_multiple'
    end
end

这将使以下路线可用：

This will make the following route available:

       update_multiple_invites POST   /invites/update_multiple/:people_ids(.:format) invites#update_multiple

编辑：

在索引视图中，您需要输出表单以便显示它们：

In the index view, you'll need to output your forms in order for them to be displayed:

# app/views/people/index.html.erb
<%= form_tag edit_multiple_people_path do %>

# app/views/people/_edit_multiple.html.erb
<%= form_for :person, :url => update_multiple_people_path, :html => { :method => :put } do |f| %>

请注意，<％％> 解释包含在其中的所有内容，但不输出。您需要使用<％=％> 才能实际输出表单的内容。

Note that <% %> interprets everything enclosed within, but does not output it. You need to use <%= %> in order to actually output the form's contents.

此外，不要忘记，您的部分需要扩展名 .erb 才能解释Ruby代码。也许您已经相应地对其进行了命名，但是您的帖子描述了 edit_multiple.html 无 .erb 。

Also, don't forget that your partial needs the extension .erb in order for it to interpret Ruby code. Perhaps you've named it accordingly, but your post depicts the name edit_multiple.html without the .erb.

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