ActiveRecord :: StatementInvalid：PG :: UndefinedTable：错误：在Rails查询中

Question

嗨，我已经提供了给定的代码

 Spree::Order.includes(:ship_address).where('ship_address.country_id = ?', 52).references(:spree_address).count

我正面临错误

 (1.1ms)  SELECT COUNT(DISTINCT "spree_orders"."id") FROM "spree_orders" LEFT OUTER JOIN "spree_addresses" ON "spree_addresses"."id" = "spree_orders"."ship_address_id" WHERE (ship_address.country_id = 52)
PG::UndefinedTable: ERROR:  missing FROM-clause entry for table "ship_address"
LINE 1: ...s"."id" = "spree_orders"."ship_address_id" WHERE (ship_addre...
                                                             ^
: SELECT COUNT(DISTINCT "spree_orders"."id") FROM "spree_orders" LEFT OUTER JOIN "spree_addresses" ON "spree_addresses"."id" = "spree_orders"."ship_address_id" WHERE (ship_address.country_id = 52)
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR:  missing FROM-clause entry for table "ship_address"
LINE 1: ...s"."id" = "spree_orders"."ship_address_id" WHERE (ship_addre...
                                                             ^
: SELECT COUNT(DISTINCT "spree_orders"."id") FROM "spree_orders" LEFT OUTER JOIN "spree_addresses" ON "spree_addresses"."id" = "spree_orders"."ship_address_id" WHERE (ship_address.country_id = 52)
from /Users/TopFormInvestment/.rvm/gems/ruby-2.1.4@skinnymint/gems/rack-mini-profiler-0.9.2/lib/patches/sql_patches.rb:160:in `exec'

签入狂欢模型

belongs_to :ship_address, foreign_key: :ship_address_id, class_name: 'Spree::Address'
    alias_attribute :shipping_address, :ship_address

请指导我如何解决此错误。

Answer 1

查看以下查询是否有帮助。

Spree::Order.includes(:ship_address).where('spree_addresses.country_id = ?', 52).references(:spree_address).count