将 Rails 中的资源路由转换为非资源路由

Question

我已经使用非 db 支持的模型实现了这个简单的表单。而且我能够执行验证并在其上显示表单字段。但我已经使用资源实现了这一点。现在我想了解如何添加更多动作，除了 CRUD 之外，并为它们定义路由。或者，如果我想停止使用resources，并明确定义操作路径。我应该如何处理？

我的文件：

控制器：new_forms_controller.rb

class NewFormsController < ApplicationController
  def new
   @form = NewForm.new
   flash[:notice] = nil
  end

  def index

  end

  def create
    @form = NewForm.new(params[:new_form])
    if @form.valid?
      flash[:notice] = "Successfully created recommendation."
      render :action => 'show'
    else
      render :action => 'new'
    end
  end

  def show

  end

end

型号：new_form.rb

class NewForm
  include ActiveModel::Validations
  include ActiveModel::Conversion
  include ActiveModel::Naming

  attr_accessor :title, :article, :content, :author

  validates :title, :article, :content, :author, :presence => true
  validates :title, :article => {:minimum => 5 }

  def initialize(attributes = {})
    attributes.each do |name, value|
      send("#{name}=", value)
    end
  end

  def persisted?
    false
  end

end

路线：route.rb

TestBranch::Application.routes.draw do
  resources :new_forms
  root :to => "new_forms#new"
end

新视图

<%= content_for :title, "New Form" %>

<% if flash[:notice] %>
    <p><%= flash[:notice]%></p>
<% end %>

<%= form_for @form do |f| %>

    <% if @form.errors.any? %>
        <div id="error_explanation">
          <h2>
            <%= pluralize(@form.errors.count, "error") %> prohibited
            this article from being saved:
          </h2>
          <ul>
            <% @form.errors.full_messages.each do |msg| %>
            <li><%= msg %></li>
            <% end %>
          </ul>
        </div>
    <% end %>

    <p>
      <%= f.label :titleID %> <br/>
      <%= f.text_field :titleID %><br/>
    </p>
    <p>
      <%= f.label :articleID %><br/>
      <%= f.text_field :articleID %><br/>
    </p>
    <p>
      <%= f.label :content %><br/>
      <%= f.text_field :content %><br/>
    </p>
    <p>
      <%= f.label :author %><br/>
      <%= f.text_field :author %><br/>
    </p>

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

Answer 1

resources 基本上可以节省您编写大量代码并让您能够自己编写代码。由于您已要求自己明确定义路径，因此您可以通过以下方式定义它们：

在 routes.rb 中，

get '/users' => 'users#index'
get '/users/:id' => 'users#show'
get '/users/new' => 'users#new'
post '/users' => 'users#create'
get '/users/:id/edit' => 'users#edit'
put '/users' => 'users#update'
delete '/users' => 'users#destroy'

这些所有的行基本上等同于resources :users。此外，您还询问了如何添加更多操作，并为它们定义相应的路由：首先，您可以查看我为resources :users 写的内容，其次，您可以查看guides for routes。

Answer 2

为资源添加额外的路由非常简单： 自定义resources 生成的路由非常简单：

resources :users do
  collection do
    get :search
  end

  member do
    get :info
  end
end

这会给我们：

GET /users/search => users#search
GET /users/:id/info => users#info

但是，在添加更多路由之前，请先问问自己，您要实现的目标是否实际上与现有的 CRUD 操作之一不匹配 - 在十分之九的情况下会匹配。

Answer 3

您需要向控制器添加所需的操作并将相应的路由添加到route.rb。这是一个例子：

在route.rb:

TestBranch::Application.routes.draw do

  resources :new_forms do
    collection do
      get :new_action1    # will produce /new_forms/new_action1
      post :new_action2   # will produce /new_forms/new_action2
      delete :new_action3 # will produce /new_forms/new_action3
    end

    member do
      get :new_action4    # will produce /new_forms/:id/new_action4
      put :new_action5    # will produce /new_forms/:id/new_action5
      delete :new_action6 # will produce /new_forms/:id/new_action6
    end
  end

  root :to => "new_forms#new"
end

控制器：new_forms_controller.rb

class NewFormsController < ApplicationController
  ...

  def new_action1
    ...
  end

  def new_action2
    ...
  end

  def new_action3
    ...
  end

  def new_action4
    ...
  end

  def new_action5
    ...
  end

  def new_action6
    ...
  end

  ...
end

Answer 4

您可以使用match 手动定义路由

match 'new_form' => 'new_form#index', :via => :get

这会将get 请求与/new_form 匹配到new_form 控制器中的index 操作