Ruby on rails 创业板“；经审核的activerecord“&引用~&燃气轮机；4.0给出了未定义的方法“审计和x27；

我正在使用： 轨道4.1.7 Ruby 2.1.4

我刚刚安装了：

模型

我得到这个错误：

2.1.4 :001 > Opportunity.audits.count
NoMethodError: undefined method `audits' for #<Class:0x007ff7946656f0>
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activerecord-4.1.7/lib/active_record/dynamic_matchers.rb:26:in `method_missing'
    from (irb):1
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/console.rb:90:in `start'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/console.rb:9:in `start'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/commands_tasks.rb:69:in `console'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands.rb:17:in `<top (required)>'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:247:in `require'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:247:in `block in require'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:247:in `require'
    from /Users/andreucasadella/rails_projects/crm/bin/rails:8:in `<top (required)>'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:241:in `load'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:241:in `block in load'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:241:in `load'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/commands/rails.rb:6:in `call'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/command_wrapper.rb:38:in `call'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:183:in `block in serve'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:156:in `fork'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:156:in `serve'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:131:in `block in run'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:125:in `loop'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:125:in `run'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application/boot.rb:18:in `<top (required)>'
    from /Users/andreucasadella/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/andreucasadella/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from -e:1:in `<main>'2.1.4

2.1.4:001>Opportunity.audits.count
NoMethodError：未定义的“审计”方法#
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activerecord-4.1.7/lib/active\u record/dynamic\u matchers.rb:26:in'method\u missing'
来自（irb）：1
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/console.rb:90:in'start'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/console.rb:9:in'start'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/commands_tasks.rb:69:在“控制台”中
来自/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/commands\u tasks.rb:40:in“run\u command！”
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands.rb:17:in`'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:247:in'require'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u-support/dependencies.rb:247:in'block in require'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:232:in'load\u dependencity'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:247:in'require'
from/Users/andreucasadella/rails\u projects/crm/bin/rails:8:in`'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:241:in'load'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:241:“加载中的块”中
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:232:in'load\u dependencity'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active\u support/dependencies.rb:241:in'load'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/commands/rails.rb:6:in'call'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/command_wrapper.rb:38:in'call'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:183:in'block in service'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:156:in'fork'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:156:in'serve'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:131:“运行中的块”中
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:125:in'loop'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:125:in'run'
from/Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application/boot.rb:18:in`'
from/Users/andreucasadella/.rvm/rubies/ruby-2.1.4/lib/ruby/site\u ruby/2.1.0/rubygems/core\u ext/kernel\u require.rb:54:in'require'
from/Users/andreucasadella/.rvm/rubies/ruby-2.1.4/lib/ruby/site\u ruby/2.1.0/rubygems/core\u ext/kernel\u require.rb:54:in'require'
from-e:1:in`'2.1.4

我使用的是Ruby 2.1.4，上面有一个警告标志“Audited可能适用于上面未列出的Ruby版本（最新的2.1.2），但我们不能保证它会正常工作。如果您希望维护未列出的Ruby，请通过拉取请求通知我们。”

---

以前有人经历过这种情况吗？

审核方法是一种实例方法，即它只针对一个opportunity，而不是整个opportunity类

您的代码：

Opportunity.audits.count  # Fails because audits is not a class method.

解决方案代码：

opportunity = Opportunity.first  # any search you want
opportunity.audits.count  # Succeeds because audits is an instance method.

2.1.4 :001 > Opportunity.audits.count
NoMethodError: undefined method `audits' for #<Class:0x007ff7946656f0>
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activerecord-4.1.7/lib/active_record/dynamic_matchers.rb:26:in `method_missing'
    from (irb):1
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/console.rb:90:in `start'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/console.rb:9:in `start'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/commands_tasks.rb:69:in `console'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/railties-4.1.7/lib/rails/commands.rb:17:in `<top (required)>'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:247:in `require'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:247:in `block in require'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:247:in `require'
    from /Users/andreucasadella/rails_projects/crm/bin/rails:8:in `<top (required)>'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:241:in `load'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:241:in `block in load'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/activesupport-4.1.7/lib/active_support/dependencies.rb:241:in `load'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/commands/rails.rb:6:in `call'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/command_wrapper.rb:38:in `call'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:183:in `block in serve'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:156:in `fork'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:156:in `serve'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:131:in `block in run'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:125:in `loop'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application.rb:125:in `run'
    from /Users/andreucasadella/.rvm/gems/ruby-2.1.4/gems/spring-1.2.0/lib/spring/application/boot.rb:18:in `<top (required)>'
    from /Users/andreucasadella/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /Users/andreucasadella/.rvm/rubies/ruby-2.1.4/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from -e:1:in `<main>'2.1.4

Opportunity.audits.count  # Fails because audits is not a class method.

opportunity = Opportunity.first  # any search you want
opportunity.audits.count  # Succeeds because audits is an instance method.