will_paginate 和 named_scopes [英] will_paginate with named_scopes

问题描述

我正在使用 will_paginate 进行分页，到目前为止，它一直运行良好，除了这一件事.

I'm using will_paginate for pagination, which has been working well so far, except for this one thing.

例如，如果我尝试对范围进行分页

If I try to paginate a scope, for instance

class User < ActiveRecord::Base

    named_scope :scope, lambda { etc }

end

User.scope.paginate({:page => params[:page], :per_page => 10})

这会告诉我 paginate 是一个未定义的方法.我宁愿不必仅针对此范围使用第二个解决方案，我可以在这里做些什么吗?

That will tell me paginate is an undefined method. I'd rather not have to use a second solution for only this scope, is there something I can do here?

推荐答案

低增益，klew 的版本应该是开箱即用的.在你的版本中你应该写:

Lowgain, klew's version should work out of the box. In your version you should write:

User.scope.paginate :page => params[:page], :per_page => 10

我更喜欢另一种分页方法.它允许使控制器更干净并在模型级别封装分页，例如:

I prefer another approach to pagination. It allows to make controller more clean and encapsulates pagination at model level, for e.g.:

class Property < ActiveRecord::Base
  named_scope :all_properties, lambda {{ :order => "name asc" }}

  def self.admin_properties(page = 1)
    self.all_properties.paginate(:page => page, :per_page => Settings.admin.per_page)
  end
end

在控制器中非常清晰的代码:

And in a controller pretty clear code:

class Admin::PropertiesController < Admin::AdminController
  def index
    @properties = Property.admin_properties(params[:page])
  end
end

ps:Settings.admin.per_page - 这是 Searchlogic 设置.

p.s: Settings.admin.per_page - this is Searchlogic settings.

这篇关于will_paginate 和 named_scopes的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！