带有ajax的Rails Routing pass参数 [英] Rails Routing pass parameter with ajax

问题描述

大家好，我是Rails的新手，我无法使用Ajax传递路线.我已经阅读了有关此问题的其他一些SO帖子，但我认为我没有正确理解它们.我如何获得ajax以使用Rails会识别的路由格式，例如:localhost:3000/welcome/show/hi-me?还是应该更改Rails代码以匹配Ajax?

Hi guys I'm very new to Rails and I am having trouble passing a route using ajax. I have read a few other SO posts about this issue, but I don't think I understand them correctly. How can I get ajax to use a route format Rails will recognize like: localhost:3000/welcome/show/hi-me? Or should I be changing my rails code to match the ajax?

ajax调用(在index.html.erb中)

ajax call (in index.html.erb)

//if url =
// /welcome/show   result: no ajax result
// welcome/show   result: GET http://localhost:3000/welcome/welcome/show?id=hi-me 404 (Not Found) 
// /show          result: GET http://localhost:3000/show?id=hi-me 404 (Not Found) 
// show           result: no ajax result

$.ajax({
    url: '/show',
    type: 'GET',
    data: {id: 'hi-me'},
    success: function(data) {console.log('success: '+data);},
    error: function(data) {console.log('error: '+data);}
 });

routes.rb

routes.rb

Rails.application.routes.draw do
get 'welcome/show/:id' => 'welcome#show'
get 'welcome/index'
get 'welcome/show'

welcome_controller

welcome_controller

class WelcomeController < ApplicationController
  def index
    #render plain: "value: |#{params[:id]}|"
    #redirect_to :controller=>'welcome', :action => 'show', :message => params[:id]
  end

  def show
    render plain: "value: #{params[:id]}"
  end
end

推荐答案

如果要使用/welcome/show/hi-me，则:

• 您的路线正确get 'welcome/show/:id' => 'welcome#show'
• 但是您的ajax不是，您需要将参数中的URL更改为/welcome/show/hi-me且没有id

• Your route is correct get 'welcome/show/:id' => 'welcome#show'
• But your ajax isn't, you'll need to change the url to /welcome/show/hi-me with no id in the params

但是，如果您想使用/welcome/show?id=hi-me，则:

But if you want to use /welcome/show?id=hi-me then:

• 您的路线应为get 'welcome/show' => 'welcome#show'
• 您的ajax将是url: '/welcome/show'和params: {id: 'hi-me}

• Your route should be get 'welcome/show' => 'welcome#show'
• Your ajax would be url: '/welcome/show' and params: {id: 'hi-me}

不确定ajax调用的重定向响应是否可以重定向初始页面，但是您可以返回javascript重定向

Not sure if a redirect response for ajax calls could redirect the initiating page or not, but you could return a javascript redirect

def index
  respond_to do |format|
    format.js
  end
end

然后创建一个名为index.js.erb

window.location = '<%= whatever_path %>'

这篇关于带有ajax的Rails Routing pass参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！