如何修复“无路由匹配[PATCH]” [英] how to fix "No route matches [PATCH]"

问题描述

我是在轨道上的红宝石新手。我正在从事一个项目，遇到一个表单的问题。我正在使用设备进行身份验证。我有一个具有管理员和用户角色的用户类。设计生成的添加/更新方法为用户正常工作。当我尝试为管理员创建一个编辑页面时，我遇到无路线匹配[PATCH]错误。这是我使用的形式

 < h4>更新配置文件< / h4> 
<％= form_for @user，：url => {：controller => admin，：action => update} do | f | ％GT; 
 
<％= hidden_​​field_tag（：id，@ user.id）％> 
< table> 
< tr> 
< td>名字< / td> 
< td><％= f.text_field：first_name，：class => 形式控制 ％>< / TD> 
< / tr> 
< tr> 
< td>姓氏< / td> 
< td><％= f.text_field：last_name，：class => 形式控制 ％>< / TD> 
< / tr> 
< tr> 
< td>电子邮件< / td> 
< td><％= f.text_field：email，：class => 形式控制 ％>< / TD> 
< / tr> 
< tr> 
< td>< / td> 
< td><％= f.submit更新，：class => btn btn-md btn-success pull-right％>< / td> 
< / tr> 
< / table> 
  

<％end％>

这是我的控制器方法

  def edit 
 end 
 
 def update 
 @user = User.find（params [：id]）
如果request.post？ 
 if（@ user.update_attributes（params [：first_name，：last_name，：email]））
 redirect_to：action => admin_portal
 else 
 render：action => edit
 end 
 end 
 
 end 
  

我也有路线

  get'admin / update'
 get'admin / edit'
  

任何人都可以建议我如何解决这个问题。

GET ，而对于更新，您需要一个 PUT 或 PATCH 方法。
当使用 PUT 或 PATCH 时，有一些约定，但在您的情况下， c $ c> PATCH 路线会解决你的问题，如你所说

  patch'admin /：1 '
  

但是，显然你正在为每个REST方法写一条路线，而Rails有一个帮手结构称为资源，为您创建所有的REST方法。
您可以在 config / routes.rb 中创建一个入口，如：

 资源：admins 
  

它将生成旨在用于指向REST方法的每个路由对于您的 user_controller 并重命名为 admin 。只提供这行代码，相当于在你的配置/路由上写这些命令：

  get'admins'控制器：'admins'，action：：index 
 get'admin /：id'，controller：'admins'，action：：show 
 get'admin / new'，controller：'admins' ：$ new 
 get'admin /：id / edit'，controller：'admins'，action：：edit 
 post'admin'，controller：'admins'，action：：create 
 patch'admin /：id'，controller：'admins'，action：：update 
 put'admin /：id'，controller：'admins'，action：：update 
 delete'admin / '，controller：'admins'，action：：delete 
  

您可以在 Rails指南。它有许多有用的建议创建路线。

I am a newbie to ruby on rails. I was working on a project and run into an issue with a form. I am using devise for authentication. I have a user class which has admin and user roles. The devise generated add/ update methods for user is working properly. I am running into a 'No route matches [PATCH]' error when I am trying to create an edit page for the admins. here is the form I am using

<h4>Update Profile</h4>
 <%= form_for @user, :url => {:controller => "admin", :action => "update" }  do |f|  %>

<%= hidden_field_tag(:id, @user.id) %>
<table>
  <tr>
    <td>First Name</td>
    <td><%= f.text_field  :first_name , :class => "form-control"%></td>
  </tr>
  <tr>
    <td>Last Name</td>
    <td><%= f.text_field  :last_name , :class => "form-control"%></td>
  </tr>
  <tr>
    <td>Email</td>
    <td><%= f.text_field  :email , :class => "form-control"%></td>
  </tr>
  <tr>
    <td></td>
    <td><%= f.submit "Update", :class => "btn btn-md btn-success pull-right" %></td>
  </tr>
</table>

<%end%>

This is my controller method

def edit
end

def update
  @user = User.find(params[:id])
  if request.post?
     if(@user.update_attributes(params[:first_name, :last_name, :email] ))
      redirect_to :action =>  "admin_portal"
  else
    render :action => "edit"
  end
end

end

I also have the route

get 'admin/update'
 get 'admin/edit'

Can anyone suggest how I can fix this issue.

解决方案

The point is: you are setting only GET from HTTP's methods, and for updates, you need a PUT or a PATCH method. There are some conventions when to use PUT or PATCH, but in your case, making a PATCH route would solve your problem as you said

patch 'admin/:1'

But, apparently you are writing yourself a route for every REST method, and Rails has a "helper" structure called resources that create all the REST methods for your. You could create just one entrance on your config/routes.rb like:

resources :admins

and it would generate every route intended for the REST methods pointing for your user_controller and renamed as admin. Putting only that line of code, is be equivalent to write all these commands on your config/routes:

get 'admins', controller: 'admins', action: :index
get 'admin/:id', controller: 'admins', action: :show
get 'admin/new', controller: 'admins', action: :new
get 'admin/:id/edit', controller: 'admins', action: :edit
post 'admin', controller: 'admins', action: :create
patch 'admin/:id', controller: 'admins', action: :update
put 'admin/:id', controller: 'admins', action: :update
delete 'admin/:id', controller: 'admins', action: :delete

You can see more on Rails guides. It has many useful advices on creating routes.

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