# 官方示例
class SnippetSerializer(serializers.ModelSerializer):
    class Meta:
        model = Snippet
        fields = ['id', 'title', 'code', 'linenos', 'language', 'style']

# 实际代码
from rest_framework import serializers
from .models import Goods

class GoodsSerializer(serializers.ModelSerializer):
    class Meta:
        model = Goods
        fields = ('name', 'goods_sn', 'click_num', 'sold_num', 'fav_num', 'goods_num')


from rest_framework import serializers
from .models import Goods

class GoodsSerializer(serializers.ModelSerializer):
    class Meta:
        model = Goods
        # fields = ('name', 'goods_sn', 'click_num', 'sold_num', 'fav_num', 'goods_num')
        fields = "__all__"




from rest_framework import serializers
from .models import Goods, GoodsCategory

class GoodsCategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = GoodsCategory
        # fields = ('name', 'goods_sn', 'click_num', 'sold_num', 'fav_num', 'goods_num')
        fields = "__all__"

class GoodsSerializer(serializers.ModelSerializer):
    category = GoodsCategorySerializer()

    class Meta:
        model = Goods
        # fields = ('name', 'goods_sn', 'click_num', 'sold_num', 'fav_num', 'goods_num')
        fields = "__all__"

这里我们使用 category = GoodsCategorySerializer() 来覆盖默认的 category 外键字段。从下图我们可以看到、我们采用很简单的代码就实现了复杂的嵌套式序列化;这种能力是Django所不具备的。




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