Howto merge 2 Django QuerySets in one and make a SELECT DISTINCT
It took me a while to find this
all_points = p1_points | p2_points
I am not familiar with geodjango, but combining QuerySets into one QuerySet is possible via the Q-Object and Boolean Operators. See http://docs.djangoproject.com/en/dev/topics/db/queries/#complex-lookups-with-q-objects
Example:
Q(p1_points) | Q(p2_points)I can't help you further, because I am not really sure what you are trying to accomplish.
I think Q queries can achieve what you need like this:
points = SinglePoint.objects.filter( Q(p1_set__vektordata__order__project__slug=slug) | Q(p2_set__vektordata__order__project__slug=slug)).distinct()