Rake功能不适用于随机用户

Question

我想创建一个简单的rake函数，它为我提供了绘制随机用户的选项。

task :pick_winner => :environment do
 user = User.find(:first, :order => 'RAND()')
 puts "Winner #{user.name}"
end

当我运行上面的代码时，我得到以下错误

ActiveRecord::RecordNotFound: Couldn't find all Users with 'id': (first, {:order=>"RAND()"}) (found 0 results, but was looking for 2)

出了什么问题？

Answer 1

这看起来像旧的Rails。

尝试：

User.order('RAND()').first