kaminari undefined方法`page'

Question

我一直在尝试使用Kaminari宝石进行分页,但遇到了问题.

我有一个简单的初学者项目与一个简单的模型:

class Position < ActiveRecord::Base
  validates_presence_of :name
end

我在Ubuntu 10.04上运行ruby 1.9.2和rails 3.0.5.我安装了kaminari(0.10.4).

根据我的理解,我应该能够执行Position.order("name").page(1),但是当我这样做时,我得到以下内容:

ruby-1.9.2-p0 > Position.order("name").page(1)
NoMethodError: undefined method `page' for #<ActiveRecord::Relation:0xaacab34>
    from /home/bob/.rvm/gems/ruby-1.9.2-p0@talentskout/gems/activerecord-3.0.5/lib/active_record/relation.rb:371:in `method_missing'
    from (irb):2
    from /home/bob/.rvm/gems/ruby-1.9.2-p0@talentskout/gems/railties-3.0.5/lib/rails/commands/console.rb:44:in `start'
    from /home/bob/.rvm/gems/ruby-1.9.2-p0@talentskout/gems/railties-3.0.5/lib/rails/commands/console.rb:8:in `start'
    from /home/bob/.rvm/gems/ruby-1.9.2-p0@talentskout/gems/railties-3.0.5/lib/rails/commands.rb:23:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

这看起来就像我能得到的那样简单.任何想法将不胜感激.

谢谢.

Answer 1

Rails noob在这里:完全相同的问题,但出于不同的原因 - 我发现我必须在添加kaminari gem并运行bundle install后重新启动服务器.只要提一下,以防其他人有同样的问题!