javascript - Rails 控制台显示 View 已渲染，但在浏览器中未渲染

Question

这看起来很奇怪。我有一个链接，我想对 Controller 进行 ajax 调用以删除用户的响应，然后重定向到另一个页面。这是链接的代码:

<%= link_to 'try again', reset_score_path, remote: true, controller: "pages", 
action: "reset_score", class: "btn btn-primary tryAgain", data: { confirm: 'This 
will reset your score to <strong>zero</strong> and reset all of your answers so you 
can start fresh. Do you want to continue?', commit: "Restart", cancel: "No Thanks",
focus: 'none'}, title: "Try Again?" %>

这是 Controller 操作:

def reset_score
  current_user.responses.destroy_all
  current_user.certificate.destroy
  redirect_to action: "course_page1", format: "html" and return
end

但问题是浏览器中没有任何反应；它不会重定向。但控制台显示它正在处理和渲染 View 。查看控制台输出:

Started GET "/pages/reset_score" for 127.0.0.1 at 2014-10-17 07:19:45 -0500
Processing by PagesController#reset_score as JS
User Load (0.3ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 62 ORDER BY "users"."id" ASC LIMIT 1
Response Load (0.3ms)  SELECT "responses".* FROM "responses" WHERE "responses"."user_id" = ?   [["user_id", 62]]
[AWS S3 404 0.306706 0 retries]  head_object(:bucket_name=>"...",:key=>"x.pdf") AWS::S3::Errors::NoSuchKey No Such Key

Redirected to http://localhost:3000/pages/course_page1.html
Completed 302 Found in 315ms (ActiveRecord: 0.6ms)

Started GET "/pages/course_page1.html" for 127.0.0.1 at 2014-10-17 07:19:45 -0500
Processing by PagesController#course_page1 as HTML
User Load (0.2ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 62 ORDER BY "users"."id" ASC    LIMIT 1
Rendered pages/course_page1.html.erb within layouts/application (0.3ms)
Rendered layouts/_header.html.erb (0.4ms)
Completed 200 OK in 80ms (Views: 78.5ms | ActiveRecord: 0.2ms)

所以它似乎表明 View 已渲染。然而，浏览器实际上并不显示此 View - 它只是停留在上一页上。

有什么想法吗？我被难住了!

(是的，我知道 AWS 给出了错误，但我假设它与此问题无关？)

编辑: 感谢 Pamio 的回答，这是 Controller 的解决方案代码(替换上面的第 4 行):

def reset_score
    current_user.responses.destroy_all
    current_user.certificate.destroy

    respond_to do |format|
        format.js { render :js => "window.location.href = '#{pages_course_page1_path}'" }
    end
end

Answer 1

您使用了redirect_to操作:“course_page1”，格式:“html”并返回，这是不正确的。如果是 html 请求而不是 ajax，重定向将正常工作。因此，如果您想重定向，尽管请求是 ajax，请使用类似这样的内容

format.js { render :js => "window.location.href = '#{course_page_path}'"}

或者从链接中删除 remote: true 属性，这样它就可以正常工作了。

希望有帮助