在django-mptt中过滤product_set

from django.db import models
from mptt.models import MPTTModel, TreeForeignKey

class Category(MPTTModel):
    name = models.CharField(max_length=50)
    parent = TreeForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='children')
    
class Product(models.Model):
    name = models.CharField(max_length=50)
    category = models.ForeignKey(Category, on_delete=models.CASCADE, related_name='product_set')

# 获取某个节点下的所有子节点的product_set
category = Category.objects.get(name='某个节点')
products = category.get_descendants(include_self=True).values_list('product_set', flat=True)

# 对product_set进行过滤
filtered_products = Product.objects.filter(pk__in=products, name__icontains='关键字')