About the auto-increase PK

[Holland_zwz]

Hi all,

 I want to add one auto-increase PK which start from one given value(such as start from 1000).

I try to write the model as following:

class MyModel(models.Model):

    mid = models.AutoField(verbose_name='My ID',primary_key=True,default='1000')

But only one record can be add when i add records in admin web site.

Any ways to support this? thanks

Regards,

Hollandz

[Markus Holtermann]

Hi Hollandz,

You can't do that from within Django automatically. You'd need to write your own database migration to update the database as the assignment of the primary key value is part of the database and not Django. Have a look at https://docs.djangoproject.com/en/1.8/ref/migration-operations/#django.db.migrations.operations.RunSQL

/Markus

[ADEWALE ADISA]

Am not 100% sure about this, but what about creating a normal Integer field, then override the save method of the model to auto-increment the value starting from 1000 ? So that any new record added, its value will be 1000+ total record +1

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