我应该担心这个422(不可处理的实体)错误吗? (Rails& Devise)

时间:2016-06-15 08:16:21

标签: javascript ruby-on-rails json ruby-on-rails-4 devise

我正在使用ajax提交我的注册表单。

enter image description here

详细信息正确时,表单正确提交。如果细节错误,我还能正确捕获错误。但是,如果细节错误,我也可以在我的控制台日志中看到POST http://localhost:3000/users 422 (Unprocessable Entity)错误消息:

enter image description here

我的问题是,我应该担心这个错误吗?或者这是正常的? 如果这不正常,我该如何正确处理呢?

谢谢!

################################更新########### ###################

来自终端的错误消息:

Started POST "/users" for ::1 at 2016-06-15 09:20:20 +0100
Processing by RegistrationsController#create as JSON
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"0D1qSK8IfbuefQ0bwEdKQFD+6WZ8XJtCnl2FZ6Nln9khLtv6qYCmoTKhwBFkVIJdYXSRQJ4e+9QAAdJ5UJzukQ==", "user"=>{"first_name"=>"John", "last_name"=>"Doe", "email"=>"ryzalyusoff@gmail.com", "password"=>"[FILTERED]"}, "commit"=>"Sign up"}
   (0.2ms)  BEGIN
  User Exists (0.6ms)  SELECT  1 AS one FROM `users` WHERE `users`.`email` = BINARY 'ryzalyusoff@gmail.com' LIMIT 1
   (0.2ms)  ROLLBACK
Completed 422 Unprocessable Entity in 93ms (Views: 0.4ms | ActiveRecord: 1.1ms)

注册控制器:

class RegistrationsController < Devise::RegistrationsController
  respond_to :json

  def create
    super
  end
end

的application.js:

$(function(){

  $("form#ajax_signup").submit(function(e){
     e.preventDefault(); 
     var user_info = $(this).serializeObject();
     console.log("About to post to /users: " + JSON.stringify(user_info));
     $.ajax({
       type: "POST",
       url: "http://localhost:3000/users",
       data: user_info,
       success: function(json){
         console.log("The Devise Response: " + JSON.stringify(json));
       },
       error: function(xhr) { 

            var errors = jQuery.parseJSON(xhr.responseText).errors; 

            for (messages in errors) { 
                error_messages =  messages + ' ' + errors[messages];

                console.log(error_messages);
            } 

       }, 
       dataType: "json"
     });
  });

});

1 个答案:

答案 0 :(得分:0)

你不要担心控制台中的422,这个红色警告不会破坏你的javascript代码。 但是这个错误可以让你在javascript代码中轻松验证处理,例如:

$('#form').on('ajax:error', 
  function () { return 'handle me'; }
);