Ruby-on-rails 在 Rails 中返回特定的 http 状态代码
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Return a specific http status code in Rails
提问by Sathish Manohar
How do you return 503 Service Unavailablein Rails for the entire application?
如何为整个应用程序返回Rails 中的503 Service Unavailable？
Also, how do you do the same for specific controllers?
另外，您如何对特定控制器执行相同操作？
回答by Sergio Tulentsev
You can use head
您可以使用 head
head 503
# or
head :service_unavailable
回答by iwasrobbed
For the entire application:
对于整个应用程序：
# ApplicationController
before_filter :return_unavailable_status
private
def return_unavailable_status
render :nothing => true, :status => :service_unavailable
end
If you wanted a custom error page, you could do:
如果你想要一个自定义错误页面，你可以这样做：
render 'custom_unavailable_page', :status => :service_unavailable
If you don't want it for specific controllers:
如果您不希望它用于特定控制器：
# SomeController
skip_before_filter :return_unavailable_status
回答by Frank Gracias
The following works for me:
以下对我有用：
format.any { render :json => {:response => 'Unable to authenticate' },:status => 401 }
The :responsefor the HTML response just in case it's accessed from the browser.
在:response对HTML响应以防万一它是从浏览器访问。
The render head 503 does not seem to be working with the above statement.
渲染头 503 似乎不适用于上述语句。
