You'll have to migrate your data manually in your migration, yes.
Besides that, if you don't want actual Base instances, then this is an
abstract class, and you should do this:
class Base(models.Model):
eggs....
plants....
class Meta:
abstract=True
class Foo(Base):
carpet=....
class Bar(Base):
car=....
On Wed, Jul 4, 2012 at 5:18 PM, Lachlan Musicman <[email protected]> wrote:
> I'd like to know this too - but I think the real answer is "get better
> at python" - you are essentially (from what I can tell) in a django
> shell when south pops the "not blank, not null but no data" error -
> try pulling in some details from fixtures?
>
> cheers
> L.
>
> On Thu, Jul 5, 2012 at 2:30 AM, Daniel Walz <[email protected]> wrote:
>> ...no one?
>>
>> regards, mcJack
>>
>> 2012/7/2 mcJack <[email protected]>:
>>> Hi all,
>>>
>>> I've got a problem migrating some changes in the model, so I tried to
solve
>>> it with south.
>>> The situation:
>>> I implemented two classes, which share some functionality. Now that I
>>> improved a little with python, django and co. I wanted to use
inheritance
>>> for that issue.
>>> The model looks like this:
>>>
>>> class Foo(models.Model):
>>> eggs = models.TextField( null=True, blank=True )
>>> plants = models.TextField( null=True, blank=True )
>>> carpet = models.IntegerField()
>>>
>>> class Bar(models.Model):
>>> eggs = models.TextField( null=True, blank=True )
>>> plants = models.TextField( null=True, blank=True )
>>> car = models.IntegerField()
>>>
>>>
>>> And obviously I want to transform to:
>>> class Base(models.Model):
>>> eggs = models.TextField( null=True, blank=True )
>>> plants = models.TextField( null=True, blank=True )
>>>
>>> class Foo(models.Model):
>>> base = models.OneToOneField( 'Base', parent_link=True )
>>> carpet = models.IntegerField()
>>>
>>> class Bar(models.Model):
>>> base = models.OneToOneField( 'Base', parent_link=True )
>>> car = models.IntegerField()
>>>
>>> But how can I tell south to fill the super class with the data from the
old
>>> schema?
>>>
>>> Can I add this information manually in the created migration script? or
is
>>> there an option/switch I didn't notice?
>>>
>>> Any hints are very welcome, thanks a lot
>>>
>>> mcJack
>>>
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>>
>>
>>
>> --
>> Daniel Walz - [email protected]
>> Bremen, Germany
>>
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>
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