Nrthugu

I have problems with relate_name on my model. On the class 'Pildora' there is a ForeignKey on the field: bloque. I have indicated the relate_name, but it doesn't work.

I have these models:

class Bloque(models.Model):

    titulo          = models.CharField(max_length=200)

    letra           = models.CharField(max_length=1)

    descripcion     = models.CharField(max_length=200)

    tema            = models.ForeignKey(Tema, on_delete=models.CASCADE)

    created_at      = models.DateTimeField(auto_now_add=True)

    slug            = models.SlugField(max_length=1)

    updated_at      = models.DateTimeField(auto_now=True)



class Pildora(models.Model):

    titulo              = models.CharField(max_length=200)

    descripcion         = RichTextField(max_length=2000, config_name='default')

    slug                = models.SlugField(max_length=20)

    url                 = models.URLField(max_length=200)

    tipo                = models.ForeignKey(TipoPildora, on_delete=models.CASCADE)

    identificador       = models.IntegerField()

    pildora_anterior    = models.ForeignKey('self', on_delete=models.CASCADE, blank=True, null=True)

    bloque              = models.ForeignKey(Bloque, on_delete=models.CASCADE, related_name='%(app_label)s_%(class)s_related')

    activo              = models.BooleanField()

    created_at          = models.DateTimeField(auto_now_add=True)

    updated_at          = models.DateTimeField(auto_now=True)

But when i use:

bloque = Bloque.objects.filter(tema__asignatura__slug=kwargs["asignatura"], tema__slug=kwargs["tema"], slug=kwargs["bloque"])

print(bloque.formacion_pildora_related)

Django says:

AttributeError: 'QuerySet' object has no attribute 'formacion_pildora_related'

I read the django doc, but I can't find why is this happening :S
What could i do?

PS: In the case in question %(app_label)s_%(class)s_related refers to 'formacion_pildora_bloque'. I have put fixed names like 'pildoras' or even left it unreported, so that by default it is used as 'set_pillora', but none of this works.

Thank you so much all, really. I'm stuck and a little frustrated.