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我有一個龐大而複雜的用戶模型,它看起來是這樣的:無法摧毀父對象
class User
class Link
include DataMapper::Resource
property :id, Serial, :key => false
belongs_to :follower, :model => 'User', :key => true
belongs_to :followed, :model => 'User', :key => true
end
include DataMapper::Resource
property :id, Serial
property :username, String, :required => true
has n, :links_to_followers, :model => 'User::Link', :child_key => [:followed_id]
has n, :links_to_followed, :model => 'User::Link', :child_key => [:follower_id]
has n, :comments
has 1, :profile_image
end
我的問題是,DataMapper的是不是讓我摧毀它。我認爲這是Datamapper不想銷燬一個未銷燬子對象的對象的結果,所以我放入了一個destroy_deep方法,該方法調用destroy_to_followers,links_to_followed,底層註釋和配置文件圖像(這些都被正確銷燬) 。
但是,即使我之後調用user.destroy,用戶也不會被銷燬。沒有任何類型的錯誤消息。是否有某種我缺少的級聯刪除命令?