如何在IRB中要求ActiveRecord
我想在我的IRB会话中加载ActiveRecord gem，但以下内容不起作用：
require 'activerecord' 2.4.1 :004 > require 'activerecord' LoadError: cannot load such file -- activerecord from /Users/robskrob/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require' from /Users/robskrob/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require' from (irb):4 from /Users/robskrob/.rvm/rubies/ruby-2.4.1/bin/irb:11:in `' 这也不是：
2.4.1 :018 > require 'activerecord-5.1.2' LoadError: cannot load such file -- activerecord-5.1.2 from /Users/robskrob/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:120:in `require' from /Users/robskrob/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:120:in `require' from (irb):18 from /Users/robskrob/.rvm/rubies/ruby-2.4.1/bin/irb:11:in `'
这是我在irb中的gem路径：
2.4.1 :012 > Gem.path => [ "/Users/robskrob/.rvm/gems/ruby-2.4.1", "/Users/robskrob/.rvm/gems/ruby-2.4.1@global ]
这是我的活跃记录gem：
ls /Users/robskrob/.rvm/gems/ruby-2.4.1/gems/activere activerecord-4.2.10/ activerecord-5.1.2/ activerecord-5.1.4/ activerecord-5.1.6/ activerecord-5.0.0.1/ activerecord-5.1.3/ activerecord-5.1.5/ activeresource-5.0.0/
如何将其中一个ActiveRecord gems加载到我的IRB会话中？
我看过这篇文章和这篇文章 ，但我无法从问题或答案中找到解决方案。
尝试require('active_record')
如果你看看gem Github repo，实际的文件名是active_record.rb，所以上面的代码应该可行。