如何在Django视图中过滤ManyToManyfield

Question

如何过滤与相应类别中的用户相关的问题？

views.py

questoes = Questao.objects.filter(idCategoria__in=[request.user.usuario.idCategoria])

models.py

class Categoria(models.Model):
    idCategoria = models.CharField(primary_key=True)

class Usuario(models.Model):
    idCategoria = models.ManyToManyField(Categoria)