在ruby on rails上的join语句抛出错误MySQL ::错误：未知列

Question

parts = Participation.joins(:booking).where(bookings: { date_of_booking: Date.yesterday }, payment_status: 2)

我有上面的join语句，即使列date_of_booking存在，mysql也会抛出错误

  

ActiveRecord :: StatementInvalid：Mysql2 ::错误：未知列＆＃39; bookings.date_of_booking＆＃39;在＆＃39; where子句＆＃39;：SELECT ad_trek_participant。* FROM ad_trek_participant INNER JOIN ad_trek_booking ON ad_trek_booking。Id = ad_trek_participant 。Booking_Id WHERE bookings。date_of_booking =＆＃39; 2017-02-13＆＃39;和ad_trek_participant。payment_status = 2

对此有任何帮助。

Answer 1

Participation.joins(:booking).where(payment_status: 2).where("ad_trek_booking.date_of_booking > ?",Date.today - 6.days)

表格名称更改为ad_trek_booking where内joins(:booking)和{{1}}给定型号名称，它有效。