在使用AJAX单击link_to之后，如何在同一页面上呈现部分内容 [英] How to render partial on the same page after clicking on link_to with AJAX

问题描述

我有一个客户清单.每个客户都有一个链接，该链接链接到客户页面并显示其数据.

I have a list of customers. Every customer has a link, which links to the customers page and displays his data.

我想链接到客户表下方同一页面上呈现的部分内容.在使用表格初始化页面"时，应加载带有选择客户"之类的空白页面.

I want to link to partial rendered on the same page below the table of customers. On initializing the "page" with the table, a blank page with something like "select a customer" should be loaded.

我的客户"列表的代码:

My code for the Customers list:

<h1>Listing Customers</h1>

<table>
  <thead>
    <tr>
      <th>Name</th>
      <th colspan="3">Actions</th>
    </tr>
  </thead>

  <tbody>
    <% @customers.each do |customer| %>
      <tr>
        <td><%= customer.name %></td>
        <td><%= link_to 'Show', customer %></td>
        <td><%= link_to 'Edit', edit_customer_path(customer) %></td>
        <td><%= link_to 'Destroy', customer, method: :delete, data: { confirm: 'Are you sure?' } %></td>
      </tr>
    <% end %>

  </tbody>
</table>

<br>

<%= link_to 'New Customer', new_customer_path, class: "button", id: "new_customer" %>

我向客户展示的部分:

<p>
  <strong>Name:</strong>
  <%= @customer.name %>
  <%= @customer.id %>
</p>

<%= link_to 'Edit Customer', edit_customer_path(@customer) %> |
<%= link_to 'Back', customers_path %>

您能帮我一些想法吗?

推荐答案

您基本上想使用AJAX来显示客户的详细信息.为此，您可以使用rails为link_to助手提供的remote: true选项.接下来我们要做什么:

You basically want to use AJAX to display a customer's details. For this you can use the remote: true option provided by rails for the link_to helper. What we are going to do next :

1. 创建一个将包含已加载数据的div.在这种情况下div#current_customer

将remote: true添加到您的链接中:

<td><%= link_to 'Show', customer, remote: true %></td>

为您的部分customers/_show.html.erb命名(不要忘记_，因此可以将其称为部分):

Name your partial customers/_show.html.erb (don't forget the _so it can be called as a partial) :

<p>
   <strong>Name:</strong>
   <%= @customer.name %>
   <%= @customer.id %>
</p>

<%= link_to 'Edit Customer', edit_customer_path(@customer) %> |
<%= link_to 'Back', customers_path %> # You should remove this link

在CustomersController中的show方法中响应Javascript:

Respond to Javascript in the show method in CustomersController :

respond_to do |format|
  format.js {render layout: false} # Add this line to you respond_to block
end

创建您的show.js.erb视图，该视图将在调用respond_to :js时处理前端更改(在本例中由remote: true触发)

Create your show.js.erb view, which is going to handle the front-end changes when respond_to :jsis gonna be called (In this case triggered by remote: true)

告诉show.js.erb它必须做什么(使用正确的@customer用您的部分内容替换#current_customer内容):

Tell show.js.erb what it must do (Replace #current_customer content with your partial, using the right @customer) :

customers/show.js.erb

$("#current_customer").html("<%= escape_javascript(render partial: 'customers/show', locals: { customer: @customer } ) %>");

customers/index.html.erb

姓名 动作

customers/index.html.erb

Name Actions

<div id="current_customer"> # This will will contain the partial 
</div>

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