如何在 Django 中引用序列化程序

Question

我有两个用于产品和成分模型的序列化程序，我想在前端使用这两种关系。作为成分模型（ingredient.products）中的产品，我希望产品模型（product.ingredients）中的产品相同，那么我该如何获得呢？

这是我的代码，

class IngredientSerializer(serializers.ModelSerializer):
    # products = serializers.SerializerMethodField() //this line doesn't work

    class Meta:
        model = Ingredient
        fields = '__all__'

class ProductSerializer(serializers.ModelSerializer):
    ingredients = IngredientSerializer(many=True, required=False)

    class Meta:
        model = Product
        fields = '__all__'

以及成分模态，

class Ingredient(models.Model):
    products = models.ManyToManyField('Product', related_name="ingredients", null=True)
    name = models.CharField(max_length=100, blank=True, null=True)
    image = models.ImageField(blank=True, null=True)

Answer 1

    class ProductSerializer(serializers.ModelSerializer):
        ingredients = IngredientSerializer(many=True, required=False)
    
        class Meta:
            model = Product
            fields = '..', '..', 'ingredients'