ruby-on-rails - 数组 :Class 的未定义方法 `where'

Question

我的模型；

class Appartment < ActiveRecord::Base
 belongs_to :region
end

class Region < ActiveRecord::Base
 belongs_to :country
 has_many :appartments
 has_many :houses
end

公寓 Controller (部分)

类 AppartmentsController

def index
 add_breadcrumb "homepage", :root_path
 @country = Country.find(params[:country_id])
 @regions = @country.regions
 @appartments = Appartment.all
end

在公寓索引 View 中，我创建了一个each循环来获取正确的url链接。

.span9
  %article.chat.t_xs
    .article-base
      #container
        - @regions.each do |region|
          - @appartments.where(region_id: region.id).each do |appartment|
            .item{:class => appartment.features_to_html_class }

              %section
                .span4
                  %h2 #{link_to appartment.name, country_region_appartment_path(@country, region, appartment)}
                  %ul.stars.floatstars
                    %li.yellowstars{:style => "width: #{appartment.avg_rating * 25}px !important;"}
                  %footer
                    %br
                    %p 
                      = raw truncate(appartment.property_description, :length => 250, :omission => '...')
                      #{link_to "meer", country_region_appartment_path(@country, region, appartment)}

我收到错误消息“数组:类的未定义方法‘where’”我在这里做错了什么...谢谢...

再见..雷姆科

Answer 1

在 Rails 3 中，Appartment.all 返回一个数组，而不是 ActiveRecord::Relation，因此您无法对其执行其他查询(例如 哪里)。这将在 Rails 4 中发生变化，但同时，请尝试在 Controller 中使用 scoped 来代替:

@appartments = Appartment.scoped