如何在MongoDB中获取删除的文档?
问题描述：
能否获得从MongoDB中删除的文档?
Is it possible to get the document that was removed from MongoDB?
result = db.things.remove({_id: id})
// is there a result.removedObjects?
谢谢！
答
可以，但是需要使用其他命令.您正在寻找 findAndModify命令.
It is possible, but it requires a different command. You are looking for the findAndModify command.
如果将选项设置为{query: ..., remove: true, new: false}，则将删除单个文档并返回删除的文档.
If you set the options to {query: ..., remove: true, new: false}, you will delete a single document and return the removed document.
一些注释:
-
new是许多语言的关键字，请确保正确包装标志的文本. -
findAndModify仅适用于单个文档.删除_id很好，但是对于远程删除则不好.
-
newis a keyword in many languages, ensure that you are wrapping the text of the flag correctly. - the
findAndModifywill only work with a single document. This is fine for deleting_idbut not good for ranged removes.