订购连接的结果

Question

我有两张桌子：

Deal has many Opportunities
Opportunity belongs to Deal

我正在尝试订购一个加入查询，该查询会根据机会的状态以及交易的状态显示机会列表。查询工作正常，除非我在末尾添加.order("deal.addr_street desc")。

@opportunities = Opportunity.joins(:opportunity_status).where("opportunity_statuses.id in (1, 2, 3, 6)").joins(:deal).merge(Deal.joins(:deal_status).where("deal_statuses.deal_status in ('On Market', 'Pre-sale')")).order("deal.addr_street desc")

错误是：

*SQLException: 没有这样的列：opportunities.deal.addr_street: SELECT "opportunities".* FROM "opportunities" INNER JOIN "opportunity_statuses" ON "opportunity_statuses"."id" = “机会”。“opportunity_status_id” INNER JOIN “交易” ON "deals"."id" = "opportunities"."deal_id" 左外连接 "deal_statuses" ON "deal_statuses"."id" = "deals"."deal_status_id" WHERE（（1、2、3、6）中的opportunity_statuses.id）和 (deal_statuses.deal_status in ('On Market', 'Pre-sale')) ORDER BY 机会.deal.addr_street desc*

有人能告诉我如何订购加入的结果吗？我在rails4上

尼克

Answer 1

你需要在 order 子句中复数你的表名

(...).order("deals.addr_street desc")