48👍
If you’re simply looking to create a queryset of items that you choose through some complicated process not representable in SQL you could always use the __in
operator.
wanted_items = set()
for item in model1.objects.all():
if check_want_item(item):
wanted_items.add(item.pk)
return model1.objects.filter(pk__in = wanted_items)
You’ll obviously have to adapt this to your situation but it should at least give you a starting point.
17👍
To manually add objects to a QuerySet, try _result_cache
:
objs = ObjModel.objects.filter(...)
len(objs) #or anything that will evaluate and hit the db
objs._result_cache.append(yourObj)
PS: I did not understand (or tried to) chefsmart’s question but I believe this answers to the question in title.
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6👍
You can’t manually add objects to a QuerySet. But why don’t you put them in a list ?
obj1 = Model1.objects.select_related('model2').get(attribute1=value1)
obj2 = Model1.objects.select_related('model2').get(attribute2=value2)
model2 = list(obj1, obj2)
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Source:stackexchange.com