我正在起草一个称为“外部数据库”的模式。

示范档案在分类申报之外没有编码。 我增加了索引、新显示和_form.html.erb的页面。

config/routes.rb 载有“<代码>资源:外部——数据库。 该模式目前没有任何专用资源。 在该申请中还宣布了其他模式,尽管目前没有任何一种模式与这一模式互动,它们都经过测试,在宣布<代码>资源之前已经运作和关闭:外部数据库<>/代码>。

在索引中,我有以下链接:new_external_database_path,如果我正确的话,这种链接就象{:action =>“new”,: Controller =>“external_database”}。

这应当从理论上上载数据应用程序/外部数据基/新数据库,使<代码>_form.html.erb。 <代码>第1行>_form :<%=格式_for(@externaldatabase) do OH/code%><>

<编码> 无航道匹配{:action=>“show”: Controller=>“external_databases”

When I created a data member using rails console, it was displayed properly by index and show. The same _form file is used by the edit method, and successfully edits the console-created data member. Destroy also functions.

...... 因此,为什么没有承认新方法?

My controller code for this model:

    class ExternalDatabasesController < ApplicationController

     def index 
      @external_databases = ExternalDatabase.all

      respond_to do |format|  
       format.html # 指数.html.erb
       format.json { render :json => @external_databases }
      end
     end

     # POST /external_databases
     # POST /external_databases.json

     def new 
      @external_database = ExternalDatabase.new

      respond_to do |format|
       format.html # New.html.erb
       format.json { render :json => @external_database }
      end
     end

     def show
      @external_database = ExternalDatabase.find(params[:id])

      respond_to do |format| 
       format.html # 显示.html.erb
       format.json {render :json => @external_database }
      end
     end

     def create
      @external_database = ExternalDatabase.new(params[:external_database])

      respond_to do |format|
       if @external_database.save
        format.html {redirect_to @external_database, :notice => "New External Database         Profile was created successfully!"}
        format.json {render :json => @external_database, :status => :created, :location => @external_database}
       else
        format.html {render :action => "new"}
        format.json { render :json => @external_database.errors, :status =>         :unprocessable_entity }
       end
      end
     end


     #GET /external_databases/1/edit
     def edit
      @external_database = ExternalDatabase.find(params[:id])
     end

     # PUT /external_databases/1
     # PUT /external_databases/1.json
     def update 
      @external_database = ExternalDatabase.find(params[:id])

      respond_to do |format|
       if @external_database.update_attributes(params[:external_database])
        format.html {redirect_to @external_database, :notice => "External Database         Profile was updated successfully!" }
        format.json {head :ok}
       else 
        format.html { redner :action => "edit" }
        format.json {render :json => @external_database.errors, :status =>         :unprocessable_entity }
       end
      end
     end


     # DELETE /external_databases/1
     # DELETE /external_databases/1.json
     def destroy
      @external_database = ExternalDatabase.find(params[:id])
      @external_database.destroy

      respond_to do |format| 
       format.html { redirect_to external_databases_rul }
       format.json { head :ok }
      end
     end

    end

更新:添加路线.rb和《意见》

My routes.rb file:

    App::Application.routes.draw do

      resources :type_as do 
         resources :type_bs
         end

      resources :type_bs do 
        resources :type_as
        resources :type_cs
        end

      resources :type_cs do
       resources :type_bs
       end

      resources :external_databases

      root :to => "home#index"

    end

View:

外部数据库——格式

    <%= form_for(@external_database) do |f| %>

     <div class="field">
      <%= f.label :name %><br/>
      <%= f.text_field :name %><br/>
     </div>
     <div class="field">
      <%= f.label :description %><br/>
      <%= f.text_field :description %><br/>
     </div>
     <div class="field">
      <%= f.label :url %><br/>
      <%= f.text_field :url %><br/>
     </div>
     <div class="actions">
       <%= f.submit %>
     </div>
    <% end %>

指数.html.erb

    <p id="notice"><%= notice %></p>
    <h1>External Databases</h1>

    <table border="1">
     <tr>
      <th>Database Name</th>
     </tr>
     <% @external_databases.each do |exdb| %>
      <tr>
       <td><%= exdb.name %></td>
       <td><%= truncate(exdb.description) %></td>
       <td><%= link_to  Show , exdb %></td>
       <!-- link_to.... :target => "_blank" will open the url in a new window -->
       <td><%= link_to  Visit , exdb.url, :target => "_blank" %></td>  
       <td><%= link_to  Edit , edit_external_database_path(exdb)%></td>
       <td><%= link_to  Destroy , exdb, :confirm =>  Are you sure? , :method => :delete %></td>
      </tr>
     <% end %>
    </table>

    <br/>
    <%= link_to  New External Database Profile , { :action => "new", :controller => "external_databases" }%> | 
    <%= link_to  Home , root_path %>

New.html.erb

    <h1>Creating a new External Database Profile</h1>

    <%= render  form  %>

    <%= link_to  Back , external_database_path %>

显示.html.erb

    <p id="notice"><%= notice %></p>

    <table cellspacing="3" cellpadding="5" border="1">
     <tr> 
      <th><b>External Database Name</b></th>
      <th><b>Database ID</b></th>
     </tr>
     <tr>
      <td><%= @external_database.name %></td>
      <td><%= @external_database.id %></td>
     </tr>
     <tr colspan="2">
      <th><b>URL</b></th>
     </tr>
     <tr colspan="2">
      <td><%= @external_database.url %></td>
      <td><%= link_to  Visit External Database , @external_database.url %></td>
     </tr>
    </table>



    <p>
     <h3>Description</h3>
     <!% @external_database.description.split.scan(/.{,60}/).each do |line| %>
      <!%= line %><br/>
     <!% end %>
    </p>

    <br /><br /><br />
    <%= link_to  Back to External Database Index , external_databases_path %> |
    <%= link_to  Edit , edit_external_database_path(@external_database) %> | 
    <%= link_to  Destroy , :confirm =>  Are you sure? , :method => :delete %>