#29579: Objects count after Many to many related query shows wrong
-------------------------------------+-------------------------------------
Reporter: noufalvlpr | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 2.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Description changed by noufalvlpr:
Old description:
> {{{
> class Standard(models.Model):
> name = models.CharField(max_length=30)
> created_at = models.DateField(null=True, blank=True)
>
> class Product(models.Model):
> name = models.CharField(max_length=30, null=True)
> standards = models.ManyToManyField(Standard, related_name='products')
> }}}
>
> added some standards to product and after
>
> {{{
> Product.objects.count() # 6
> Product.objects.filter(standards__created_at__isnull=True).count() # 7
> }}}
New description:
{{{
class Standard(models.Model):
name = models.CharField(max_length=30)
created_at = models.DateField(null=True, blank=True)
class Product(models.Model):
name = models.CharField(max_length=30, null=True)
standards = models.ManyToManyField(Standard, related_name='products')
}}}
created standards with created_at=Null, added some standards to product
and after
{{{
Product.objects.count() # 6
Product.objects.filter(standards__created_at__isnull=True).count() # 7
}}}
--
--
Ticket URL: <https://code.djangoproject.com/ticket/29579#comment:1>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/068.c660c6c53ea04329d961e63861a08bf8%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.
