我想在单击链接后重新加载页面的一部分。假设我想实现一个点击计数器。这就是我所做的。
在show.html.erb中
<div id="downloads"><%= render(partial:'downloads', locals: {user: @user}) %></div>
在_downloads.html.erb
<% user.attachments.each do |attachment| %>
<%= attachment['download_count'] %>
<br>
<%= link_to 'download', {controller: 'files', action: 'download', attachment: attachment, user: user}%>
<% end %>
在show.js.erb
$("#downloads").html("<%= escape_javascript(render('downloads', locals: {user: params[:user]})) %>")
在files_controller.rb中
def download
user = User.find(params[:user])
# increasing attachment's dl count
# ...
render(:partial => 'users/downloads', locals: {user: user}, :layout => false)
end
结果它将整个页面替换为部分页面。怎么了?
编辑一个
已添加remote: true
到 link_to 正如 Anchor 所说。
<%= link_to 'download', {controller: 'files', action: 'download', attachment: attachment, user: user}, remote: true %>
在files_controller.rb中
替换render(:partial => 'users/downloads', locals: {user: user}, :layout => false)
与
respond_to do |format|
format.js { render(:partial => 'users/downloads', locals: {user: user}, :layout => false)}
end
现在尝试单击链接:我的页面没有任何反应。虽然在控制台中:
Processing by FilesController#download as JS Parameters: {"attachment"=>{"download_count"=>"175", "filename"=>"filename.doc", "id"=>"2fd9adbf6172740d46060000", "type"=>"appli"}, "user"=>"7fbceaa661727417f55e0000"} Rendered users/_downloads.html.erb (60.7ms) Completed 200 OK in 106ms (Views: 63.1ms)
我认为我现在面临着 javascript 问题。
最佳答案
看起来您的 Controller 正在返回 HTML 响应而不是脚本响应。尝试在 link_to 中添加参数 :remote => true:
<%= link_to 'download', {controller: 'files', action: 'download', attachment: attachment, user: user}, :remote => true %>
并确保您的 Controller 在响应 block 中有相应的format.js
关于javascript - Rails 渲染仅加载部分内容,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19474619/