Suppose we have such a model:
class Membership(models.Model):
person = models.ForeignKey(Person, on_delete=models.CASCADE)
date_joined = models.DateField()
invite_reason = models.CharField(max_length=64)
Can we put x as a variable inside the filter so that we can have different querysets by giving different args when calling the get_queryset function?
def get_queryset(x, y):
queryset = Membership.objects.filter(x=y)
return queryset
A Q object [Django-doc] can take a 2-tuple with as first item a string that specifies the "key" and as second item the "value", so you can filter with:
from django.db.models import Q
x = 'person_id'
y = 14
Membership.objects.filter(Q((x, y)))to obtain the Memberships with person_id=14.
It however does not make much sense to use this in get_queryset in a class-based view, because that function has to respect its code contract, and adding extra parameters will not work: it simply expects a self, and an optional queryset. You can add extra optional parameters, but when the view calls the get_queryset it will not use these parameters, or at least not if you do not alter the boilerplate logic.
get_queryset? In a class-based view, it is acalled by the view boilerplate.