#25007: UUIDFIeld(default=uuid.uuid4) created with migrations are the same
----------------------------+-----------------------------------------
Reporter: afg984 | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.8
Severity: Normal | Keywords: migrations, uuid, UUIDField
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
----------------------------+-----------------------------------------
Steps to reproduce:
1. Create model
{{{#!python
class Bar(models.Model):
pass
}}}
2. makemigrations & migrate
3. Create some Bar()s in the database
{{{#!python
>>> Bar.objects.create()
<Bar: Bar object>
>>> Bar.objects.create()
<Bar: Bar object>
>>> Bar.objects.create()
<Bar: Bar object>
>>> Bar.objects.create()
<Bar: Bar object>
}}}
4. Add a UUIDField
{{{#!python
class Bar(models.Model):
uu = models.UUIDField(default=uuid.uuid4)
}}}
5. makemigrations & migrate
if I use `unique=True` in the previous step, `./manage.py migrate` gives
me:
{{{django.db.utils.IntegrityError: UNIQUE constraint failed:
foo_bar__new.uu}}}
6. The UUIDs are the same
{{{#!python
>>> [bar.uu for bar in Bar.objects.all()]
[UUID('fae77227-7555-457d-a049-1e62e030ce1c'),
UUID('fae77227-7555-457d-a049-1e62e030ce1c'),
UUID('fae77227-7555-457d-a049-1e62e030ce1c'),
UUID('fae77227-7555-457d-a049-1e62e030ce1c')]
}}}
Environment:
{{{#!python
>>> platform.python_version()
'3.4.3'
>>> platform.platform()
'Linux-4.0.5-1-ARCH-x86_64-with-arch'
>>> django.__version__
'1.8.2'
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/25007>
Django <https://code.djangoproject.com/>
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