加入聲明Ruby on Rails的拋出了錯誤的MySQL ::錯誤：未知列

Question

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

我有上述連接語句，即使列date_of_booking存在，MySQL的拋出了錯誤

ActiveRecord::StatementInvalid: Mysql2::Error: Unknown column 'bookings.date_of_booking' in 'where clause': 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 = '2017-02-13' AND ad_trek_participant . payment_status = 2

任何幫助的這個請。

Answer 1

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

表名稱變更爲ad_trek_booking內where和joins(:booking)給出的型號名稱，它的工作。