自定义_id字段Django MongoDB MongoEngine [英] custom _id fields Django MongoDB MongoEngine

问题描述

是否可以使用Django和MongoEngine的自定义_id字段？
问题是，如果我尝试将一个字符串保存到_id字段，它会抛出一个无效的ObjectId错误。我想做的是使用我自己的Id。这不是没有使用Django的问题，因为如果给定的id已经存在（甚至有必要告诉程序，该ID已经被使用），我创建了DuplicateKeyError。
现在看起来好像Django / Mongo ngine甚至不会让我创建一个自定义的_id字段： - /
有没有办法工作，而不创建ID的第二个字段，让_id字段创建自己？

is it possible to use custom _id fields with Django and MongoEngine? The problem is, if I try to save a string to the _id field it throws an Invalid ObjectId eror. What I want to do is using my own Id's. This never was a problem without using Django because I caught the DuplicateKeyError on creation if a given id was already existing (which was even necessary to tell the program, that this ID is already taken) Now it seems as if Django/MongoEngine won't even let me create a custom _id field :-/ Is there any way to work arround this without creating a second field for the ID and let the _id field create itself?

请问Codehai

推荐答案

您可以设置参数 primary_key = True 。这将使目标字段为_id字段。

You can set the parameter primary_key=True on a Field. This will make the target Field your _id Field.

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