Django - Herança, Modelos Abstratos e OO Na Veia

acessar_f_related_names.py

instanciaF = F()
meus_bes = instanciaF.meus_bs.all()
meus_as = instanciaF.meus_as.all()

exemplo_abs_heranca.py

class C(models.Model):
    nome = models.CharField(u"Nome", max_length=250)

    class Meta:
        abstract = True
    
class A(C):
    atributo_a = models.CharField(u"Atributo de A", max_length=250)

class B(C):
    atributo_b = models.CharField(u"Atributo de B", max_length=250)

exemplo_abs_heranca_multipla.py

class F(models.Model):
    chave_f = models.ForeignKey('nomeApp.D')

    class Meta:
        abstract = True

class C(models.Model):
    name = models.CharField(u"Nome", max_length=250)

    class Meta:
        abstract = True

class A(C, F):
    atributo_a = models.CharField(u"Atributo de A", max_length=250)

class B(C, F):
    atributo_b = models.CharField(u"Atributo de B", max_length=250)

exemplo_abs_heranca_multipla2.py

class F(models.Model):
    chave_f = models.ForeignKey('nomeApp.D',related_name='meus_%(class)ss')

    class Meta:
        abstract = True

class C(models.Model):
    name = models.CharField(u"Nome", max_length=250)

    class Meta:
        abstract = True

class A(C, F):
    atributo_a = models.CharField(u"Atributo de A", max_length=250)

class B(C, F):
    atributo_b = models.CharField(u"Atributo de B", max_length=250)

exemplo_heranca.py

class C(models.Model):
    nome = models.CharField(u"Nome", max_length=250)
    
class A(C):
    atributo_a = models.CharField(u"Atributo de A", max_length=250)

class B(C):
    atributo_b = models.CharField(u"Atributo de B", max_length=250)

exemplo_sem_heranca.py

class A(C):
    nome = models.CharField(u"Nome", max_length=250)
    atributo_a = models.CharField(u"Atributo de A", max_length=250)

class B(C):
    nome = models.CharField(u"Nome", max_length=250)
    atributo_b = models.CharField(u"Atributo de B", max_length=250)