JRuby 1.6.3 和 Rails 3.1rc5 和 activerecord-3.1.0.rc5 和 destroy_all

Question

我能够创建能够从 JRuby 1.6.3 和 Rails 3.1rc5 运行我的迁移，并在控制台会话中创建一个简单的 Role 对象，如下所示：

jruby-1.6.3 :001 > role = Role.new(:name => "Admin")
   (1.0ms)   SELECT name
 FROM sqlite_master
 WHERE type = 'table' AND NOT name = 'sqlite_sequence'

 => #<Role id: nil, name: "Admin", created_at: nil, updated_at: nil> 

一切都很好，但是当我运行时

角色.destroy_all

我得到以下堆栈跟踪：

jruby-1.6.3 :003 > Role.destroy_all
ArgumentError: wrong number of arguments (3 for 2)
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/activerecord-3.1.0.rc5/lib/active_record/base.rb:470:in `find_by_sql'
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/activerecord-3.1.0.rc5/lib/active_record/relation.rb:111:in `to_a'
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/activerecord-3.1.0.rc5/lib/active_record/relation.rb:289:in `destroy_all'
    from org/jruby/RubyBasicObject.java:1684:in `__send__'
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/activerecord-3.1.0.rc5/lib/active_record/base.rb:438:in `destroy_all'
    from (irb):3:in `evaluate'
    from org/jruby/RubyKernel.java:1093:in `eval'
    from org/jruby/RubyKernel.java:1419:in `loop'
    from org/jruby/RubyKernel.java:1205:in `catch'
    from org/jruby/RubyKernel.java:1205:in `catch'
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/railties-3.1.0.rc5/lib/rails/commands/console.rb:45:in `start'
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/railties-3.1.0.rc5/lib/rails/commands/console.rb:8:in `start'
    from /Users/paulcowan/.rvm/gems/jruby-1.6.3/gems/railties-3.1.0.rc5/lib/rails/commands.rb:40:in `(root)'
    from org/jruby/RubyKernel.java:1047:in `require'
    from script/rails:6:in `(root)'

activerecord-3.1.0.rc5 和 jruby 之间似乎一切都不正确。

有人对此有帮助吗？

Answer 1

activerecord-jdbc-adapter 方面已经取得了一些进展，您现在可以使用 activerecord-jdbc-adapter 的 master 分支来让您的设置正常工作。只需将以下内容添加到您的 Gemfile 中：

gem 'activerecord-jdbc-adapter', :git => 'https://github.com/nicksieger/activerecord-jdbc-adapter.git

如果您等不及最终的 activerecord-jdbc-adapter gem 并且肯定不在生产中，我只建议您这样做。

Answer 2

你是对的。 activerecord-jdbc-adapter 和 Rails 3.1 还不太对劲。我正在努力，希望能在 Rails 3.1 最终版本之前准备好。

Answer 3

难道你不需要为它destroy_all指定条件吗？

例如

http://apidock.com/rails/ActiveRecord/Base/destroy_all/class