我想將此產品添加到兩個類別中，怎么做
class Category(models.Model):
name = models.CharField(max_length=500)
image = models.ImageField(upload_to='categories', default='default.png')
class Products(models.Model):
name = models.CharField(max_length=500)
category_id = models.ManyToManyField(Category, default='')
category_id = [4, 6]
product, created = Products.objects.get_or_create(name =data['Casual Red Shirt'],
product.category_id.add()
uj5u.com熱心網友回復：
試試這個
category_id = [4, 6]
product, created = Products.objects.get_or_create(name =data['Casual Red Shirt'],
product.category_id.add(* category_id)
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