未定義的方法'更改'爲：Fixnum更新時戳值

Question

我在一個項目中使用Google的OAuth2 API，使用Omniauth可以輕鬆創建初始帳戶，但爲了使用API​​，我需要刷新access_token，因爲它們只有一個小時有效，但我在刷新令牌時遇到更新expires_at值的問題。

下面是我使用請求令牌刷新代碼：

require 'oauth2' 
class Identity < ActiveRecord::Base 
belongs_to :user 
    def refresh_access_token 
    case self.provider 
     when "google" 
     client = OAuth2::Client.new OAUTH_KEYS_CONFIG['google']['client_id'], 
            OAUTH_KEYS_CONFIG['google']['client_secret'], 
            { 
             :site => 'https://accounts.google.com', 
             :authorize_url => "/o/oauth2/auth", 
             :token_url => "/o/oauth2/token" 
            } 
     response = OAuth2::AccessToken.from_hash(client, :refresh_token => self.refresh_token).refresh! 

     self.update_attribute(:access_token, response.token) 
     self.update_attribute(:expires_at, Time.at(response.expires_at)) 
    end 
    end 
end 

我得到的最後update_attribute線的undefined method 'change' for 1359936923:Fixnum錯誤：expires_at（我從線拆分它上面，試圖弄清楚問題）。

我已經嘗試了上面的update_attribute調用，也有一個簡單的self.expires_at = response.expires_at，有和沒有Time.at轉換，但所有組合都會導致相同的錯誤。

：expires_at屬性是一個Timestamp數據類型。我檢查了response變量，它包含時間戳正確，據我可以告訴：

--- !ruby/object:OAuth2::AccessToken 
... 
expires_in: 3600 
expires_at: 1360019618 
options: 
    :mode: :header 
    :header_format: Bearer %s 
    :param_name: bearer_token 
... 

堆棧跟蹤

activerecord (3.2.11) lib/active_record/attribute_methods/time_zone_conversion.rb:69:in `round_usec' 
activerecord (3.2.11) lib/active_record/attribute_methods/time_zone_conversion.rb:46:in `expires_at=' 
activerecord (3.2.11) lib/active_record/persistence.rb:180:in `update_attribute' 
app/models/identity.rb:69:in `refresh_access_token' 
app/controllers/sessions_controller.rb:30:in `create' 
actionpack (3.2.11) lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
actionpack (3.2.11) lib/abstract_controller/base.rb:167:in `process_action' 
actionpack (3.2.11) lib/action_controller/metal/rendering.rb:10:in `process_action' 
actionpack (3.2.11) lib/abstract_controller/callbacks.rb:18:in `block in process_action' 
activesupport (3.2.11) lib/active_support/callbacks.rb:414:in `_run__3108124736639590412__process_action__2258996443485139522__callbacks' 
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `__run_callback' 
activesupport (3.2.11) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks' 
activesupport (3.2.11) lib/active_support/callbacks.rb:81:in `run_callbacks' 
actionpack (3.2.11) lib/abstract_controller/callbacks.rb:17:in `process_action' 
actionpack (3.2.11) lib/action_controller/metal/rescue.rb:29:in `process_action' 
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action' 
activesupport (3.2.11) lib/active_support/notifications.rb:123:in `block in instrument' 
activesupport (3.2.11) lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
activesupport (3.2.11) lib/active_support/notifications.rb:123:in `instrument' 
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:29:in `process_action' 
actionpack (3.2.11) lib/action_controller/metal/params_wrapper.rb:207:in `process_action' 
activerecord (3.2.11) lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
actionpack (3.2.11) lib/abstract_controller/base.rb:121:in `process' 
actionpack (3.2.11) lib/abstract_controller/rendering.rb:45:in `process' 
actionpack (3.2.11) lib/action_controller/metal.rb:203:in `dispatch' 
actionpack (3.2.11) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' 
actionpack (3.2.11) lib/action_controller/metal.rb:246:in `block in action' 
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:73:in `call' 
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:73:in `dispatch' 
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:36:in `call' 
journey (1.0.4) lib/journey/router.rb:68:in `block in call' 
journey (1.0.4) lib/journey/router.rb:56:in `each' 
journey (1.0.4) lib/journey/router.rb:56:in `call' 
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:601:in `call' 
omniauth (1.1.1) lib/omniauth/strategy.rb:394:in `call_app!' 
omniauth (1.1.1) lib/omniauth/strategy.rb:356:in `callback_phase' 
omniauth-oauth2 (1.1.1) lib/omniauth/strategies/oauth2.rb:77:in `callback_phase' 
omniauth (1.1.1) lib/omniauth/strategy.rb:219:in `callback_call' 
omniauth (1.1.1) lib/omniauth/strategy.rb:175:in `call!' 
omniauth (1.1.1) lib/omniauth/strategy.rb:157:in `call' 
omniauth (1.1.1) lib/omniauth/builder.rb:48:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' 
rack (1.4.4) lib/rack/etag.rb:23:in `call' 
rack (1.4.4) lib/rack/conditionalget.rb:25:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/head.rb:14:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/params_parser.rb:21:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/flash.rb:242:in `call' 
rack (1.4.4) lib/rack/session/abstract/id.rb:210:in `context' 
rack (1.4.4) lib/rack/session/abstract/id.rb:205:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/cookies.rb:341:in `call' 
activerecord (3.2.11) lib/active_record/query_cache.rb:64:in `call' 
activerecord (3.2.11) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call' 
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `_run__2408988688759615157__call__236505231918019627__callbacks' 
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `__run_callback' 
activesupport (3.2.11) lib/active_support/callbacks.rb:385:in `_run_call_callbacks' 
activesupport (3.2.11) lib/active_support/callbacks.rb:81:in `run_callbacks' 
actionpack (3.2.11) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/reloader.rb:65:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/remote_ip.rb:31:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call' 
railties (3.2.11) lib/rails/rack/logger.rb:32:in `call_app' 
railties (3.2.11) lib/rails/rack/logger.rb:16:in `block in call' 
activesupport (3.2.11) lib/active_support/tagged_logging.rb:22:in `tagged' 
railties (3.2.11) lib/rails/rack/logger.rb:16:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/request_id.rb:22:in `call' 
rack (1.4.4) lib/rack/methodoverride.rb:21:in `call' 
rack (1.4.4) lib/rack/runtime.rb:17:in `call' 
activesupport (3.2.11) lib/active_support/cache/strategy/local_cache.rb:72:in `call' 
rack (1.4.4) lib/rack/lock.rb:15:in `call' 
actionpack (3.2.11) lib/action_dispatch/middleware/static.rb:62:in `call' 
railties (3.2.11) lib/rails/engine.rb:479:in `call' 
railties (3.2.11) lib/rails/application.rb:223:in `call' 
rack (1.4.4) lib/rack/content_length.rb:14:in `call' 
railties (3.2.11) lib/rails/rack/log_tailer.rb:17:in `call' 
thin (1.5.0) lib/thin/connection.rb:81:in `block in pre_process' 
thin (1.5.0) lib/thin/connection.rb:79:in `catch' 
thin (1.5.0) lib/thin/connection.rb:79:in `pre_process' 
thin (1.5.0) lib/thin/connection.rb:54:in `process' 
thin (1.5.0) lib/thin/connection.rb:39:in `receive_data' 
eventmachine (1.0.0) lib/eventmachine.rb:187:in `run_machine' 
eventmachine (1.0.0) lib/eventmachine.rb:187:in `run' 
thin (1.5.0) lib/thin/backends/base.rb:63:in `start' 
thin (1.5.0) lib/thin/server.rb:159:in `start' 
rack (1.4.4) lib/rack/handler/thin.rb:13:in `run' 
rack (1.4.4) lib/rack/server.rb:268:in `start' 
railties (3.2.11) lib/rails/commands/server.rb:70:in `start' 
railties (3.2.11) lib/rails/commands.rb:55:in `block in <top (required)>' 
railties (3.2.11) lib/rails/commands.rb:50:in `tap' 
railties (3.2.11) lib/rails/commands.rb:50:in `<top (required)>' 
script/rails:6:in `require' 
script/rails:6:in `<main>' 

Answer 1

如果你能擺脫它，你可以關閉時區瞭解您的屬性expires_at。

class Identity < ActiveRecord::Base 
    self.skip_time_zone_conversion_for_attributes = [:expires_at] 
end 

我們看到了同樣的問題，因爲我們有一個Android應用程序發送時元一次回到我們的網站。關閉該屬性的時區轉換消除了錯誤，至今似乎對數據沒有不良影響。當然，我們用UTC來存儲所有內容，到目前爲止，這似乎是唯一的工作。

一些資源：

• http://api.rubyonrails.org/classes/ActiveRecord/Timestamp.html
• https://github.com/rails/rails/blob/master/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb