Hello Ivan... you say Unrelated but I see you have a relation with
VendorGroup... why don't use a ForeignKey?... any way you can use the pipe
charater " | " to concatenate two querysets.
https://simpleisbetterthancomplex.com/tips/2016/06/20/django-tip-5-how-to-merge-querysets.html
Cheers!
Rafael E. Ferrero
El lun., 20 may. 2019 a las 9:12, Ivan Martić ()
escribió:
> Hi guys, hope you can help me.
> I have 2 models and i want to make a count query on them. I need a count
> on how many articles i have in every category.
>
> Models:
> class Vendors(models.Model):
> id = models.AutoField(db_column='id', primary_key=True, blank=False,
> unique=True)
> name = models.CharField(db_column='name', max_length=150, blank=True,
> null=True)
> groupid = models.IntegerField(db_column='groupid', blank=True,
> null=True)
>
>
> class VendorGroup(models.Model):
> id = models.AutoField(db_column='ID', primary_key=True, null=False,
> max_length=255, blank=True)
> vendor_group = models.CharField(db_column='Vendor Group',
> max_length=255, blank=True, null=True)
>
> view:
> def vendorsgrouping_view(request):
> list_vendor = VendorGroup.objects.all().order_by('vendor_group')
>
> context = {
> 'lista_vendora':lista_vendora,
> }
> return render(request, "templates/vendorgroup.html", context)
>
> I have list of vendors listed in template:
> {% for item in lista_vendora %}
> {{ item.vendor_group }}
> {% endfor %}
>
> Prefetch, annotate, select related dont work since they are not connected.
> I know it is easier to give foreign key to fields but what about this?
>
> Thanks,
>
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