Django ORM ForeignKey查询使用注释设置输出

我有以下3个Django模型(使用一些抽象):

class Person(models.Model):
    full_name = models.CharField(max_length=120, validators=[MinLengthValidator(2)])
    birth_date = models.DateField(default='1900-01-01')
    nationality = models.CharField(max_length=50, default='Unknown')

    class Meta:
        abstract = True


class Director(Person):
    years_of_experience = models.SmallIntegerField(validators=[MinValueValidator(0)], default=0)

    objects = DirectorManager()


class Actor(Person):
    is_awarded = models.BooleanField(default=False)
    last_updated = models.DateTimeField(auto_now=True)


class Movie(models.Model):
    MOVIE_GENRES = (
        ('Action', 'Action'),
        ('Comedy', 'Comedy'),
        ('Drama', 'Drama'),
        ('Other', 'Other')
    )

    title = models.CharField(max_length=150, validators=[MinLengthValidator(5)])
    genre = models.CharField(max_length=6, choices=MOVIE_GENRES, default='Other')
    rating = models.DecimalField(max_digits=3, decimal_places=1, validators=[MinValueValidator(0.0), MaxValueValidator(10.0)], default=0)
    director = models.ForeignKey(Director, on_delete=models.CASCADE)
    starring_actor = models.ForeignKey(Actor, on_delete=models.SET_NULL, blank=True, null=True)
    actors = models.ManyToManyField(Actor, related_name="actors")

正如您在上面的代码中看到的，我还有1个经理.它是这样的:

class DirectorManager(models.Manager):
    def get_directors_by_movies_count(self):
        return self.all().values("full_name").annotate(movies_num=Count("movie__director")).order_by("-movies_num", "full_name")

这是我的问题所在.我需要并输出如下内容:

<QuerySet [<Director: Francis Ford Coppola>, <Director: Akira Kurosawa>...>

相反，我收到了这样的信息:

<QuerySet [{'full_name': 'Francis Ford Coppola', 'movies_num': 2}, {'full_name': 'Akira Kurosawa', 'movies_num': 1}...]>

所以，我只需要一条记录:导演，而不是这两个全名和电影号，但我想保留相同的组和顺序逻辑. 如何做到这一点？