2012-01-02 81 views
5

我正在使用XML POST登录我的用户,如果身份验证不起作用,我需要返回XML响应。但是,XML响应的格式需要是自定义的,我不能告诉Devise在哪里应该更改此输出。使用Devise自动验证失败的自定义XML响应

在我的“user_sessions_controller.rb”我有香草调用“create”方法:

def create 
    resource = warden.authenticate!(:scope => resource_name, 
            :recall => "#{controller_path}#new") 

这将返回:

<errors> 
    <error>Invalid email or password.</error> 
</errors> 

,但我需要把一个包装解决此:

<AppName> 
    <errors> 
    <error>Invalid email or password.</error> 
    </errors> 
</AppName> 

回答

7

您可以在自定义的应用程序失败重​​新定义http_auth_body方法:

# lib/custom_failure_app.rb 

class CustomFailure < Devise::FailureApp 
    protected 
    def http_auth_body 
     return i18n_message unless request_format 
     method = "to_#{request_format}" 
     if method == "to_xml" 
     { :errors => { :error => i18n_message } }.to_xml(:root => Rails.application.class.parent_name) 
     elsif {}.respond_to?(method) 
     { :error => i18n_message }.send(method) 
     else 
     i18n_message 
     end 
    end 
end 

然后将其添加到initializers/devise.rb

config.warden do |manager| 
    manager.failure_app = CustomFailure 
end 

,这增加application.rb

config.autoload_paths += %W(#{config.root}/lib) 

结果:

curl -X POST http://localhost:3000/users/sign_in.xml -d "{}"                 
<?xml version="1.0" encoding="UTF-8"?> 
<DeviseCustom> 
    <errors> 
    <error>You need to sign in or sign up before continuing.</error> 
    </errors> 
</DeviseCustom> 
+0

美丽的回应,谢谢! – beeudoublez 2012-01-03 03:37:05