I am trying to filter like this:
#models.py class A(models:Model): all_letters = models.ManyToManyField(Letters, related_name="all_letters") selected_letters = models.ManyToManyField(Letters, related_name="selected_letters")
#views.py a = A.objects.get(pk=pk) array_one = a.all_letters.all().exclude(a.selected_letters.all())
I know you can’t filter based on instances but is the only equivalent way of doing this using some sort of manual python searching?
You can filter out the items where the relation in reverse (which you also named
selected_letters) do not point to
array_one = a.all_letters.exclude(selected_letters=a)