Question

我把Django1.3用于我的一个项目,我需要获得数据库中刚刚保存的记录。

下面的守则就是在数据库中保存记录:

n = MyData.objects.create(record_title=title, record_content=content)
n.save()

记录索引只是节省了自动化设备。是否有办法获得这一身份识别资料,并在我的法典中加以使用?

Answer 1

使用<代码>n.id 在储蓄之后。

见“。

Answer 2

页: 1

To quote "Model.pk":

Regardless of whether you define a primary key field yourself, or let Django supply one for you, each model will have a property called pk. It behaves like a normal attribute on the model, but is actually an alias for whichever attribute is the primary key field for the model. You can read and set this value, just as you would for any other attribute, and it will update the correct field in the model.

Answer 3

将以你的模型自动更新该索引,紧接在n.save(下,您可读到n.id,并将有人居住。

Answer 4

搬走储蓄()和直接取花板:

n = MyData.objects.create(record_title=title, record_content=content)
n.pk

Answer 5

If someone reading this question and after check the other answers still having problems accessing the id after the creation of the object. Be sure you don t define id as an Integer in your model. If you decide to declare it anyways, use Autofield but you don t need to, It is for free with models.Model

#No
class TestModel(models.Model):
    id = models.IntegerField(primary_key=True)
    something...


#Ok
class TestModel(models.Model):
    id = models.AutoField(primary_key=True)
    something...

#Ok
class TestModel(models.Model):
    something...

if you do define id as Integer, TestModel.objects.create( or with save() will return None.

Answer 6

我在获得补贴方面也存在类似的问题。在Django 3.0.5,这是我如何获得补贴。您的榜样和变量名称如下:

instance = n.save()
# return the id
instance[0].id

以上变量是清单。在Django 3 采用上述方法获得补助。

答案在使用<代码>modelformset_eqy时适用。如

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