- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
我只是在现有应用程序上试用 cache_money gem 并收到此错误:
NoMethodError (You have a nil object when you didn't expect it!
The error occurred while evaluating nil.repository)
NoMethodError (You have a nil object when you didn't expect it!
The error occurred while evaluating nil.repository):
(__DELEGATION__):2:in `__send__'
(__DELEGATION__):2:in `repository'
/usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cache_money.rb:50:in `transaction'
/vendor/rails/activerecord/lib/active_record/transactions.rb:138:in `transaction'
/vendor/rails/activerecord/lib/active_record/transactions.rb:178:in `with_transaction_returning_status'
/vendor/rails/activerecord/lib/active_record/transactions.rb:146:in `save_without_trace_ActiveRecord___self_class_name__save'
/vendor/rails/activerecord/lib/active_record/transactions.rb:158:in `rollback_active_record_state!'
/vendor/rails/activerecord/lib/active_record/transactions.rb:146:in `save_without_trace_ActiveRecord___self_class_name__save'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:138:in `save_without_trace_ActiveRecord_save'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:41:in `trace_method_execution_with_scope'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:137:in `save_without_trace_ActiveRecord_save'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:141:in `save_without_trace_ActiveRecord_all'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:141:in `save'
/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:237:in `create'
/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:405:in `create_record'
/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:423:in `add_record_to_target_with_callbacks'
/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:405:in `create_record'
/vendor/rails/activerecord/lib/active_record/associations/association_collection.rb:235:in `create'
/app/controllers/application.rb:234:in `write_audit_log'
/app/controllers/application.rb:224:in `write_read_audit_log'
/vendor/rails/activesupport/lib/active_support/callbacks.rb:178:in `send'
/vendor/rails/activesupport/lib/active_support/callbacks.rb:178:in `evaluate_method'
/vendor/rails/activesupport/lib/active_support/callbacks.rb:166:in `call'
/vendor/rails/actionpack/lib/action_controller/filters.rb:662:in `run_after_filters'
/vendor/rails/actionpack/lib/action_controller/filters.rb:619:in `call_filters'
/vendor/rails/actionpack/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
/vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/vendor/rails/actionpack/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/vendor/rails/actionpack/lib/action_controller/rescue.rb:136:in `perform_action_without_caching'
/vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:13:in `perform_action_without_newrelic_trace'
/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
/vendor/rails/activerecord/lib/active_record/query_cache.rb:8:in `cache'
/vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:12:in `perform_action_without_newrelic_trace'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:123:in `perform_action'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:41:in `trace_method_execution_with_scope'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:109:in `perform_action'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/method_tracer.rb:18:in `trace_method_execution_no_scope'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:103:in `perform_action'
/vendor/rails/actionpack/lib/action_controller/base.rb:524:in `send'
/vendor/rails/actionpack/lib/action_controller/base.rb:524:in `process_without_filters'
/vendor/rails/actionpack/lib/action_controller/filters.rb:606:in `process_without_session_management_support'
/vendor/rails/actionpack/lib/action_controller/session_management.rb:134:in `process'
/vendor/rails/actionpack/lib/action_controller/base.rb:392:in `process'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:183:in `handle_request'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:110:in `dispatch_unlocked'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:123:in `dispatch_without_newrelic'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:122:in `synchronize'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:122:in `dispatch_without_newrelic'
/vendor/plugins/newrelic_rpm/lib/new_relic/agent/instrumentation/dispatcher_instrumentation.rb:44:in `dispatch'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:132:in `dispatch_cgi'
/vendor/rails/actionpack/lib/action_controller/dispatcher.rb:39:in `dispatch'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:76:in `process'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `synchronize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:in `process'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `orig_process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `orig_process_client'
/vendor/plugins/spawn/lib/patches.rb:59:in `process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `each'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:128:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel_rails:281
/vendor/rails/activesupport/lib/active_support/dependencies.rb:142:in `load_without_new_constant_marking'
/vendor/rails/activesupport/lib/active_support/dependencies.rb:142:in `load'
/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
/vendor/rails/activesupport/lib/active_support/dependencies.rb:142:in `load'
/vendor/rails/railties/lib/commands/servers/mongrel.rb:64
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
/vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
/vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
/vendor/rails/railties/lib/commands/server.rb:49
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3
最佳答案
如果您根据使用目的使用 cache_money(很难从您提供的内容中看出),则它可能是 cache_money 中的一个错误。 github项目中报告了其他nil引用错误,其中一些自0.2.5版本以来已解决。
您可以在 Rails 项目中以插件形式查看最新版本的代码:
script/plugin git://github.com/nkallen/cache-money.git
vendor/plugins/cache-money
中删除该插件.
关于ruby-on-rails - cache_money 'nil.repository' 错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/1346108/
在检查对象是否为 nil 时,有人使用 1: if (object == nil) { //... } 有人用 2: if (nil == object) { //... } 1和2有
func InsertApData(w http.ResponseWriter, r *http.Request) { decoder := json.NewDecoder(r.Body)
为什么 nil.to_s 返回 "",而 nil.inspect 返回 "nil"(当显然 .inspect 使用 .to_s 方法) 最佳答案 "inspect" method of the Obj
运行时间 https://play.golang.org/p/sl12vfS9vP package main import "fmt" func main() { err := run()
我可以将三元条件运算符用于 if {} else {} 语句,如下所示:a ? x : y,还是问题?回答 1 : 回答 2。 是否可以使用这种格式来检查,而不是 a 是 true 还是 false,
无法弄清楚这里出了什么问题。按照设计设置说明,用谷歌搜索我能想到的一切,仍然没有运气。 undefined method `email' for # Extracted source (around
今天写一些 rspec 时,我遇到了一些意外的行为,将日期(和时间)实例与 nil 进行比较。这是一个使用原始 ruby 的示例(没有 Rails 或其他库): user@MacBook-Work
我将数据类型的非零值分配给非可选属性,然后将其分配给可选属性,最后用所述数据实例化图像。当可选项通过 if-let 子句时,它的 block 执行,抛出错误: Fatal error: Unexpec
swift 5.1 。 考虑以下。 let x: Any? = nil let y: Any = x print("x \(x)") // x nil pri
请耐心听我解释这一点, 我正在创建一个聊天室,用户可以在其中上传照片供其他人查看。当用户点击图标时,他们可以将照片上传到我的 Firebase 数据库(这已成功完成,我已经对此进行了测试)。照片的 U
我的 xCode 5.0 目前遇到一个奇怪的问题:一个对象在控制台中似乎为 nil,但同时它可以通过代码访问。 图 1:对象似乎为零 图2:NSLog(@"%@", imgDownloader) 的输
我有一个实现协议(protocol)的类,以便添加 3 个变量。我专门设置了图像变量,调试器显示该变量存在,但是在我打印它时在代码中显示为 nil,我的 if let 语句也认为该变量为 nil。 @
这个问题在这里已经有了答案: Swift 2 ( executeFetchRequest ) : error handling (5 个答案) 关闭 7 年前。 开始在 SWIFT 中学习编码,每次
两者 (not 'nil) 和 (not nil) 求值为T,那么'nil和nil有什么区别吗?那么 ''nil 呢?如果 ''nil 的计算结果为 'nil,那么 ''nil 是否也应该计算为 ni
(if '(nil nil) 'print-true 'print-false) (if '(nil) 'print-true 'print-false) 在上面的代码
这个问题在这里已经有了答案: 关闭 11 年前。 Possible Duplicate: obj.nil? vs. obj == nil 我发现了一个问题 - == nil 和 nil 哪个更好?
此代码段抛出异常: x = nil jsoned = x.to_json puts 'x.to_json=' + jsoned.inspect puts 'back=' + JSON.parse(js
基本上我有一个对象想要传递给前端。我在后端记录了它,它不是空的,但是在前端,当我提醒它时,它变成了空。 ... presentation := &presentationStruct { Obje
我创建了一个自定义错误类型来包装错误,以便在 Golang 中更轻松地进行调试。当有错误要打印时它可以工作,但现在它会引起 panic 。 Demo type Error struct { E
写一个符合我当前问题的标题有点难..我有一个 main() 函数,它使用另一个包 (database_sql) 中的函数。该函数初始化一个全局变量 sql.DB*。初始化后,变量不为nil,但是对于其
我是一名优秀的程序员,十分优秀!