Question

嗯，我在Ruby on Rails中遇到删除方法存在这样的问题，我想，我尝试了所有我读过的内容，但它不起作用，也许你的gusy可以帮助修复这个差距。

当我点击链接时它会重定向到患者/ 1？确认=是+你+确定％3F＆amp; method = delete

但是我的Chrome控制台收到了一条消息Uncaught SyntaxError：Unexpected token =：3000 / assets / application.js？body = 1:13属于

= require jquery

我的代码如下：

patients.controller

def show
    @patient = Patient.find(params[:id])
end

def new
    @patient = Patient.new
    @patients = Patient.find(:all)
end


def create
    @patient = Patient.new(params[:patient])
    if  @patient.save
        redirect_to new_patient_path
    end
end

def edit
    @patient = Patient.find(params[:id])
end

def update
    @patient = Patient.find(params[:id])
    if @patient.update_attributes(params[:patient])
     redirect_to :action => 'show', :id => @patient
    else
     @patient = patient.find(:all)
     render :action => 'edit'
    end
end

def destroy
    @patient = Patient.find(params[:id])
    @patient.destroy
    redirect_to '/patients/new', :notice => "Your patient has been deleted"
end

show.html.erb

<h2>Patient Information</h2>
<%= @patient.firstname %><br /> 
<%= @patient.lastname %><br />
<%= @patient.phone %><br /> 
<p> <%= link_to "Edit", edit_patient_path %> |  <%= link_to "Delete", :confirm => "Are you sure?", :method => :delete %> </p>

申请js

= require jquery
= require jquery_ujs
= require turbolinks
= require_tree .

application.html.erb

<!DOCTYPE html>
<html>
<head>
<title>Registration Patient System</title>
<%= stylesheet_link_tag    "application", media: "all", "data-turbolinks-track" => true %>
<%= javascript_include_tag "application" %>
<%= csrf_meta_tags %>
</head>
<body>

<%= yield %>

</body>
</html>

路由

  resources :patients
  match 'patients/:id' => 'patients#show', via: [:get, :post]

  resources :users
  match '/register', to: 'users#new', via: [:get, :post]

  resources :pages

  resources :sessions, :only => [:new, :create, :destroy]
  match '/login', to: 'sessions#new', via: [:get, :post]
  match '/logout', to: 'sessions#destroy', via: [:get, :post]

  # The priority is based upon order of creation: first created -> highest priority.
  # See how all your routes lay out with "rake routes".

  # You can have the root of your site routed with "root"
  root 'sessions#new'

命令行

开始GET“/ patients / 1？确认=是+你+确定％3F＆amp; method = delete”for 127.0.0.1于2014-02-12 18:14:18 -0300由PatientsController处理#show as HTML参数：{“confirm”=＆gt;“你是确定？“，”方法“=＆gt;”删除“，”id“=＆gt;”1“} [1m [36mPatient Load（1.0ms）[0m] [1mSELECT“患者”。*来自“患者”在哪里“患者”。“id”=？限制 1 [0m [[“id”，“1”]]在其中呈现患者/ show.html.erb 布局/应用程序（1.0ms）在13ms内完成200 OK（浏览次数：9.0ms | ActiveRecord：1.0ms）

感谢您的帮助！

Answer 1

可能您遇到验证错误。更新delete方法以在destroy之后使用bang，因此它显示输出。这应该至少可以帮助您调试当前的情况。否则提供更多细节，我可以更新答案。


def destroy
    @patient = Patient.find(params[:id])
    @patient.destroy!
    redirect_to '/patients/new', :notice => "Your patient has been deleted"
end

Answer 2

<%= link_to "Delete", patient_path(@patient), :confirm => "Are you sure?", :method => :delete %>

更新

application.js应该是

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require_tree .

不是

= require jquery
= require jquery_ujs
= require turbolinks
= require_tree .

Answer 3

in

<%= link_to "Delete", :confirm => "Are you sure?", :method => :delete %>

您错过了path部分

<%= link_to "Delete", destroy_patient_path, :confirm => "Are you sure?", :method => :delete %>

Answer 4

您需要添加要删除的对象：

<%= link_to "Delete", @patient, :confirm => "Are you sure?", :method => :delete %>

Answer 5

您需要在视图中...有不同的方式来传递变量

<%= link_to "Delete", destroy_patient_path, :confirm => "Are you sure?", :method => :delete %>

然后在您的routes.rb

中

#more member routes probably need definition but not showing them here
resources :patients do
    member do
        get  :show
        post :show
        delete :destroy
    end
end

问题是您没有定义路线，而您没有提供呼叫路径

Rails删除方法它不起作用

5 个答案: