PS
Size: a a a
PS
АК
V
ModelFirst():
group = FK(Group)
state = Integer
ModelSecond():
group = FK(Group)
state = Integer
ModelThird():
group = FK(Group)
state = Integer
group = Group.objects.filter(modelsecond__state=1, modelfirst__state=1, modelthird__state=1)GS

DT

HV

GS
HV
DT
ModelFirst():
group = FK(Group)
state = Integer
ModelSecond():
group = FK(Group)
state = Integer
ModelThird():
group = FK(Group)
state = Integer
group = Group.objects.filter(modelsecond__state=1, modelfirst__state=1, modelthird__state=1)V
DT
DT
GS
DT
V
state?GS
DT
state?D