Question

我最近安装了' ar-extension '宝石。安装完成后，当我运行 rails c 或 rails s 时，我收到以下错误：

/usr/local/rvm/gems/ruby-1.9.2-p320/gems/ar-extensions-0.9.2/lib/ar-extensions/extensions.rb:427:in `<class:SqliteRegexp>': undefined method `class_inheritable_accessor' for ActiveRecord::Extensions::SqliteRegexp:Class (NoMethodError)
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/ar-extensions-0.9.2/lib/ar-extensions/extensions.rb:426:in `<module:Extensions>'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/ar-extensions-0.9.2/lib/ar-extensions/extensions.rb:112:in `<top (required)>'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `block in require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/ar-extensions-0.9.2/init.rb:10:in `<top (required)>'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `block in require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/ar-extensions-0.9.2/lib/ar-extensions.rb:5:in `<top (required)>'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:68:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:66:in `each'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:66:in `block in require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `each'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320@global/gems/bundler-1.1.4/lib/bundler.rb:119:in `require'
    from /home/infibeam/Aptana_studio_3/workspace/DigitalAssetManagement/config/application.rb:7:in `<top (required)>'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.6/lib/rails/commands.rb:53:in `require'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.6/lib/rails/commands.rb:53:in `block in <top (required)>'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.6/lib/rails/commands.rb:50:in `tap'
    from /usr/local/rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.6/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我是谷歌的错误，但徒劳无功..Plz帮助我知道xactly出了什么问题。

Answer 1

您尝试使用的宝石与rails 3.2不兼容。已弃用class_inheritable_accessor，转而使用class_attribute。

你可以找到这个gem的rails 3.2 fork，做你自己的端口，或者搜索替代品。

Answer 2

实际上是 - 扩展不适用于rails 3的rails我们有 active import替代它并且它工作得非常好..;）

Answer 3

请使用rails 3的activerecord-import gem

https://github.com/zdennis/activerecord-import/wiki

books = []
10.times do |i| 
  books  "book #{i}")
end
Book.import books

未定义的方法class_inheritable_accessor for ActiveRecord :: Extensions :: SqliteRegexp：Class

3 个答案: