i have propose one solution here :
http://stackoverflow.com/questions/4593139/serialize-in-django-witha-query-set-that-contains-defer
On Jan 4, 12:21 pm, jorge <jorgewilsonmach...@gmail.com> wrote:
> Hi, i have i little problem, and that is how can serialize a django
> query with defer ?
> I have this model :
>
> class Evento(models.Model):
> nome=models.CharField(max_length=100)
> descricao=models.CharField(max_length=200,null=True)
> data_inicio= models.DateTimeField()
> data_fim= models.DateTimeField()
> preco=models.DecimalField(max_digits=6,decimal_places=2)
> consumiveis= models.CharField(max_length=5)
> dress_code= models.CharField(max_length=6)
> guest_list=models.CharField(max_length=15)
>
> local = models.ForeignKey(Local)
> user= models.ManyToManyField(User,null=True,blank=True)
>
> def __unicode__(self):
> return unicode('%s %s'%(self.nome,self.descricao))
>
> my query is this :
>
> eventos_totais =
> Evento.objects.defer("user").filter(data_inicio__gte=default_inicio,
> data_fim__lte=default_fim)
>
> it works fine i think (how can i check if the query has realy defer
> the field user ? ) but when i do:
>
> json_serializer = serializers.get_serializer("json")()
> eventos_totais = json_serializer.serialize(eventos_totais,
> ensure_ascii=False,
> use_natural_keys=True)
>
> it always folow the natural keys for user and local, i need natural
> keys for this query because of the fields local. But i do not need the
> field user.
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