django-restframework serializers文件的内容

from rest_framework import serializers


from computerapp.models import Product, Manufacturer, Category, UserProfile


class UserProfileSerializer(serializers.ModelSerializer):
    class Meta:
        model = UserProfile # 继承对比的类名
        fields = ('id', 'user', 'mobile_phone', 'nick_name', 'description', 'icon', 'created', 'updated') # 前端页面显示的内容
        read_only_fields = ('user',) # 只读文件设置

# 增加一个序列器，用于id与name的转换
'''
    "manufacturer": {
        "id": 1,
        "name": "戴尔"
    }
'''

class ManufacturerSerializer(serializers.ModelSerializer):
    class Meta:
        model = Manufacturer
        fields = ('id', 'name')


class CategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = Category
        fields = ('id', 'name')

class ProductRetrieveSerializer(serializers.ModelSerializer):
    # 由于想要rest框架前端显示外键关系时，不只是显示id，而是显示我们需要的内容，则需要实例化该外键列表，添加到自己显示的文件中
    manufacturer = ManufacturerSerializer()
    category = CategorySerializer()

    class Meta:
        model = Product
        fields = (
            'id', 'model', 'image', 'price', 'sold', 'category', 'manufacturer', 'description', 'created', 'updated')