ruby-on-rails-3 - 在 has_one 关联中考虑对字符串字段进行 Sphinx 过滤

Question

不能说这里出了什么问题。我正在尝试过滤我的协会的state财产。address

class Organization < ActiveRecord::Base
  has_one :address, :as => :addressable, :dependent => :destroy

  define_index do
    indexes :name, :sortable => true

    has mec_revenue
    has 'CRC32(status)', :as => :status, :type => :integer
    has 'CRC32(address.state)', :as => :state, :type => :integer
    set_property :delta => true
  end

end

但是当我运行时rake ts:index，我收到以下错误。

indexing index 'organization_delta'...
ERROR: index 'organization_delta': sql_range_query: ERROR:  missing FROM-clause entry for table "address"
LINE 1: ...S "mec_revenue", CRC32(status) AS "status", CRC32(address.st...

有任何想法吗？

Answer 1

我不确定如何解决 FROM 子句问题，但如果我使用表名而不是属性名，我可以使用group_by子句来解决这个问题。

has 'CRC32(addresses.state)', :as => :state, :type => :integer
group_by "addresses.state"