多态关联查询 - Rails 5.1
Query in polymorphic association - Rails 5.1
我想查询多态关联:
@pois = Poi.where(poitable: Sleep.where(track_id: @track.id))
很好,可以了...我想添加第二个参数:
@pois = Poi.where(poitable: Sleep.where(track_id: @track.id)).or.where(poitable: Town.where(track_id: @track.id))
现在,我得到一个错误:"wrong number of arguments (given 0, expected 1)"
怎么了?
or 方法采用另一个 ActiveRecord 查询的参数
所以语法是:
Poi.where(poitable: Sleep.where(track_id: @track.id)).or(Poi.where(poitable: Town.where(track_id: @track.id)))
我想查询多态关联:
@pois = Poi.where(poitable: Sleep.where(track_id: @track.id))
很好,可以了...我想添加第二个参数:
@pois = Poi.where(poitable: Sleep.where(track_id: @track.id)).or.where(poitable: Town.where(track_id: @track.id))
现在,我得到一个错误:"wrong number of arguments (given 0, expected 1)"
怎么了?
or 方法采用另一个 ActiveRecord 查询的参数
所以语法是:
Poi.where(poitable: Sleep.where(track_id: @track.id)).or(Poi.where(poitable: Town.where(track_id: @track.id)))