db.key is assigned if you set a the key_name attribute.
So I understand your question

my_entity = my_model(key_name = 'abc')
my_entity.put()
my_entity.key().name returns the key_name i.e. : abc

On 7 juin, 09:29, Tom Wu <[email protected]> wrote:
> Hi All,
>
> Since the db.key is auto generate by system. We can't assign the value of
> db.key.
>
> If ReferenceProperty can reference with key_name, it will make easier for us
> to backup and restore the Reference model.
>
> Just a idea for me, Any suggestion will be appreciated.
>
> Best Regards
> Tom Wu
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