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2. 在数据储存中找到关键物体的模型背景(App/67/)
原标题:Get the Model context of a Key object in Datastore (App Engine)

我愿通过储存<条码>(钥匙),绕过一些经常询问。 当我收到<代码>encoded_key时 在我回过后,我可以用<代码”重建钥匙。 Key(encoded=encoded_key)。

但是,我如何从钥匙中质疑实际目标? 一种可能性是使用

GqlQuery( SELECT * FROM   + Key(encoded_key).kind() + 
      WHERE __key__ =   + encoded_key)

但是,如果可能,我就不使用GQL。 如果没有使用GQL,能否找到物体?

最佳回答

您是否刚刚将<代码>str(key)的成文stor成册? 如果是的话,如果你回来的话,你就应当能够做到:db.get(key),以获得它所指明的实体。

<代码>db.get(>>将采用db>。 关键物体或<代码>db>的表示。 关键物体(或关键人物或关键人物名单)。

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