DT
Size: a a a
DT
NK
NK
NK
DT
NK
DT
NK
DT
NC
NK
NC
NC
NK
NC
NK
A
a = A.objects.get(param1=param2)
b = B.objects.get(param3=a.param4)
S
a = A.objects.get(param1=param2)
b = B.objects.get(param3=a.param4)
NC
NC
a = A.objects.get(param1=param2)
b = B.objects.get(param3=a.param4)