On Wed, Apr 29, 2009 at 03:06:37PM +0800, Vincent wrote:
> The situation is, i have model A and model B, B has a foreignkey
> point to A,.
>
> now i find that i wanna delete records of A without deleting
> records of B which pointing to A.
You're trying to do something that a relational database
On Wed, 2009-04-29 at 01:36 -0700, Margie wrote:
[...]
> Would love to hear a summary of where this might be going from any
> developers! I realize it is a tough problem - not complaining here.
> Just trying to get a grip on what do do in my own app and whether
> there are any changes coming and
I had a post on this recently that you would probably find relevant,
see:
http://groups.google.com/group/django-users/browse_frm/thread/582f21486c1073eb/8af00e9c0577a5e6?lnk=gst&q=margie#8af00e9c0577a5e6
Or search for "deletion of distant related objects" in this group.
I'm still somewhat confu
On Wed, Apr 29, 2009 at 3:59 AM, Daniel Roseman
wrote:
> You could try defining the foreign key with null=True.
> a = models.ForeignKey(A, null=True)
Not really, since there's no support whatsoever for ON DELETE triggers
in the ORM.
--
"Bureaucrat Conrad, you are technically correct -- the
On Apr 29, 8:06 am, Vincent wrote:
> No, i did not mean this.
> The situation is, i have model A and model B, B has a foreignkey point to
> A,.
>
> now i find that i wanna delete records of A without deleting records of B
> which pointing to A.
> i think i could reset the B's foreignkey field to
No, i did not mean this.
The situation is, i have model A and model B, B has a foreignkey point to
A,.
now i find that i wanna delete records of A without deleting records of B
which pointing to A.
i think i could reset the B's foreignkey field to integerfield.
But i consider it is not the best a
On Wed, Apr 29, 2009 at 2:57 AM, Vincent wrote:
> Hi,
> I got a problem like this:
> class A(models.Model):
> id = models.AutoField(primary_key=True)
> field1 = models.TextField()
> class B(models.Model):
> a = models.ForeignKey(A)
> field1 = models.TextField()
> then there are so
Hi,
I got a problem like this:
class A(models.Model):
id = models.AutoField(primary_key=True)
field1 = models.TextField()
class B(models.Model):
a = models.ForeignKey(A)
field1 = models.TextField()
then there are some records of A/B,
how can i delete records of A and do not delet
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