我可以在Django模型上使用select_related()和ManyToManyField吗?

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我可以在Django模型上使用select_related()和ManyToManyField吗?

我有:

class Award(models.Model):
    name = models.CharField(max_length=100, db_index=True)
class Alias(models.Model):
    awards = models.ManyToManyField('Award', through='Achiever')
class Achiever(models.Model):
    award = models.ForeignKey(Award)
    alias = models.ForeignKey(Alias)
    count = models.IntegerField(default=1)

我该如何预填充一个拥有其所有`achiever_set`和`awards`的`Alias`对象?

>>> db.reset_queries()
>>> Alias.objects.filter(id="450867").select_related("achiever_set__award").get().achiever_set.all()[0].award.name
u'Perma-Peddle'
>>> len(db.connection.queries)
3
>>> db.reset_queries()
>>> Alias.objects.filter(id="450867").select_related("awards").get().awards.all()[0].name
u'Dwarfageddon (10 player)'
>>> len(db.connection.queries)
2

我需要大量访问别名已获得的奖项(包括中间表和奖项本身)。如何批量处理所有这些访问?

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