django模糊查询排序

class Book(models.Model):
    """
    列名
    """
    class Meta:
        db_table = 'book'
    name = models.CharField(verbose_name="名字", max_length=32)
    sort = models.IntegerField(verbose_name="排序", default=None, null=True, blank=True)
    describe = models.CharField(verbose_name="描述", max_length=128, null=True)

t_name = get_json_values('t_name', body)
t_sort = get_json_values('t_sort', body)
t_id = get_json_values('t_id', body)
case = Case(
    When(Q(Q(name__icontains=t_name) & Q(sort=t_sort) & Q(id=t_id)), then=1),
    When(Q(Q(name__icontains=t_name) & Q(id=t_id)), then=2),
    When(Q(Q(name__icontains=t_name) & Q(sort=t_sort)), then=3),
    When(Q(Q(sort=t_sort) & Q(id=t_id)), then=4),
    default=5,
    output_field=CharField()
)

books= models.Book.objects.filter(
    Q(Q(name__icontains=t_name) & Q(sort=t_sort) & Q(id=t_id))|
    Q(Q(name__icontains=t_name) & Q(id=t_id)) |
    Q(Q(name__icontains=t_name) & Q(sort=t_sort)) |
    Q(Q(sort=t_sort) & Q(id=t_id))|
    Q(name__icontains=t_name)|Q(sort=t_sort)|Q(id=t_id)
).annotate(pos=case).order_by('pos')
print(books)