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Rails的5关联键查找
我有以下型号:命名空间与ActiveRecord的
class Supervision::ApplicationRecord < ActiveRecord::Base
self.abstract_class = true
def self.table_name_prefix
"supervision_"
end
end
---------------
class Supervision::Activity < Supervision::ApplicationRecord
has_one :supervision_missed_visit, class_name: Supervision::MissedVisit
(...)
end
---------------
class Supervision::MissedVisit < Supervision::ApplicationRecord
belongs_to :supervision_activity, class_name: Supervision::Activity
(...)
end
而且我也有这种模式,这是没有命名空间:
class Activity < ApplicationRecord
(...)
end
每当我试着到达所述Supervision::MissedVisit
通过其has_one
关系,如在
@supervision_activity.supervision_missed_visit
我得到以下错误:
ERROR: column supervision_missed_visits.activity_id does not exist
如何让这个Rails的理解,我确实找supervision_missed_visits.supervision_activity_id
?