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我有以下相当简单的代码，应该使用 Devise 将用户登录到我的应用程序中。如果使用 HTML 请求而不是 XHR 完成，这实际上工作得很好。当我这样做时，XHR 就完成了，

          = form_for(@user, :url => session_path(@user), :remote => true) do |f|
            = f.label :email
            = f.text_field :email, :size => 15, :maxlength => 32
            = f.label :password
            = f.password_field :password, :size => 15, :maxlength => 32
            %br
            = f.submit "Sign in"

结果是：

Started GET "/" for 127.0.0.1 at 2012-12-04 13:24:44 -0800
Processing by HomeController#index as HTML
  Rendered home/_hello_page.html.haml (0.1ms)
  Rendered home/index.html.haml within layouts/application (1.9ms)
Completed 200 OK in 18ms (Views: 16.3ms | ActiveRecord: 0.4ms)

Started POST "/users/sign_in" for 127.0.0.1 at 2012-12-04 13:24:54 -0800
Processing by Devise::SessionsController#create as JS
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"1cGaycA20NMhK0fOwQyN8e3aSFwCHB6BZcLwmvKTI3U=", "user"=>{"email"=>"obscured@someplace.com", "password"=>"[FILTERED]"}, "commit"=>"Sign in"}
Completed 500 Internal Server Error in 65ms

ActionView::MissingTemplate (Missing template devise/sessions/create, devise/create, application/create with {:locale=>[:en], :formats=>[:js, :html], :handlers=>[:erb, :builder, :coffee, :haml]}. Searched in:
  * "/Users/sxross/Developer/iPhoneApps/motion/whos_here/whos_here_server/app/views"
  * "/Users/sxross/.rvm/gems/ruby-1.9.3-p327@whos_here_server/gems/devise-2.1.2/app/views"
):

一切都完全符合我的预期，很明显，Processing by Devise::SessionsController#create as JS它告诉接收控制器“将我想要的 JSON 寄回给我”。所以问题是为什么设计控制器试图渲染模板而不是 JSON，我能做些什么来修复它？

谢谢！

4

1 回答 1

1

您在 views/devise/sessions 中缺少 create.js.[erb|haml] 文件

当您发送远程登录请求时，该请求由 Devise::SessionsController#create 完成，如果您不覆盖它

respond_with resource, :location => after_sign_in_path_for(resource)

将寻找 create.js.erb。我通常只有

window.location = "<%= root_url %>"

在里面。

此外，您需要设置

config.http_authenticatable_on_xhr = false
config.navigational_formats = [:"*/*", "*/*", :html, :js]

在 config/initializers/devise.rb 中，它可以正常工作。

对于我自己的情况，我已经用这个覆盖了会话控制器：

@resource = warden.authenticate!(:scope => resource_name, :recall => "sessions#failure")
sign_in(resource_name, @resource)
respond_to do |format|
  format.html { respond_with @resource, :location => after_sign_in_path_for(@resource) }
  format.js
end

如果身份验证失败，这会将我抛出一个失败方法，并在 failure.js.erb 中处理它以向用户显示

于 2013-02-21T10:01:06.600 回答