Django 前后端分离实战项目 生鲜超市（十三）之订单管理

订单管理

前言

所有vue接口全部在src/api/api.js文件下

代码已上传至github：https://github.com/kalipoison/fresh-market

此项目仅学习用途

要求

Package Version

---

certifi 2020.4.5.1
chardet 3.0.4
coreapi 2.3.1
coreschema 0.0.4
Django 1.11.3
django-cors-headers 2.1.0
django-crispy-forms 1.6.1
django-filter 1.0.4
django-formtools 2.0
django-guardian 1.4.9
django-reversion 2.0.9
djangorestframework 3.6.3
djangorestframework-jwt 1.11.0
future 0.16.0
httplib2 0.9.2
idna 2.9
itypes 1.2.0
Jinja2 2.11.2
Markdown 2.6.8
MarkupSafe 1.1.1
mysqlclient 1.3.10
olefile 0.46
Pillow 4.2.1
pip 20.0.2
PyJWT 1.7.1
pytz 2019.3
requests 2.23.0
setuptools 46.1.3
six 1.10.0
uritemplate 3.0.1
urllib3 1.25.9
wheel 0.34.2
XlsxWriter 0.9.8
xlwt 1.2.0

流程

trade文件夹下views.py代码如下：

views.py

from rest_framework import viewsets
from rest_framework.permissions import IsAuthenticated
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from rest_framework.authentication import SessionAuthentication
from rest_framework import mixins

from .serializers import ShopCartSerializer,ShopCartDetailSerializer,OrderSerializer,OrderDetailSerializer
from utils.permissions import IsOwnerOrReadOnly
from .models import ShoppingCart, OrderInfo, OrderGoods



class ShoppingCartViewset(viewsets.ModelViewSet):
    """
    购物车功能
    list:
        获取购物车详情
    create：
        加入购物车
    delete：
        删除购物记录
    """
    permission_classes = (IsAuthenticated, IsOwnerOrReadOnly)
    authentication_classes = (JSONWebTokenAuthentication, SessionAuthentication)
    serializer_class = ShopCartSerializer
    lookup_field = "goods_id"

    def get_serializer_class(self):
        if self.action == 'list':
            return ShopCartDetailSerializer
        else:
            return ShopCartSerializer

    def get_queryset(self):
        return ShoppingCart.objects.filter(user=self.request.user)


class OrderViewset(mixins.ListModelMixin, mixins.RetrieveModelMixin, mixins.CreateModelMixin, mixins.DestroyModelMixin,
                   viewsets.GenericViewSet):
    """
    订单管理
    list:
        获取个人订单
    delete:
        删除订单
    create：
        新增订单
    """
    permission_classes = (IsAuthenticated, IsOwnerOrReadOnly)
    authentication_classes = (JSONWebTokenAuthentication, SessionAuthentication)
    serializer_class = OrderSerializer

    def get_queryset(self):
        return OrderInfo.objects.filter(user=self.request.user)

    def get_serializer_class(self):
        if self.action == "retrieve":
            return OrderDetailSerializer
        return OrderSerializer

    def perform_create(self, serializer):
        order = serializer.save()
        shop_carts = ShoppingCart.objects.filter(user=self.request.user)
        for shop_cart in shop_carts:
            order_goods = OrderGoods()
            order_goods.goods = shop_cart.goods
            order_goods.goods_num = shop_cart.nums
            order_goods.order = order
            order_goods.save()

            shop_cart.delete()
        return order

trade文件夹下serializers.py代码如下：

serializers.py

from rest_framework import serializers

from goods.models import Goods
from .models import ShoppingCart, OrderInfo, OrderGoods
from goods.serializers import GoodsSerializer

class ShopCartDetailSerializer(serializers.ModelSerializer):
    goods = GoodsSerializer(many=False, read_only=True)
    class Meta:
        model = ShoppingCart
        fields = ("goods", "nums")


class ShopCartSerializer(serializers.Serializer):
    user = serializers.HiddenField(
        default=serializers.CurrentUserDefault()
    )
    nums = serializers.IntegerField(required=True, label="数量",min_value=1,
                                    error_messages={
                                        "min_value":"商品数量不能小于一",
                                        "required": "请选择购买数量"
                                    })
    goods = serializers.PrimaryKeyRelatedField(required=True, queryset=Goods.objects.all())

    def create(self, validated_data):
        user = self.context["request"].user
        nums = validated_data["nums"]
        goods = validated_data["goods"]

        existed = ShoppingCart.objects.filter(user=user, goods=goods)

        if existed:
            existed = existed[0]
            existed.nums += nums
            existed.save()
        else:
            existed = ShoppingCart.objects.create(**validated_data)

        return existed

    def update(self, instance, validated_data):
        #修改商品数量
        instance.nums = validated_data["nums"]
        instance.save()
        return instance


class OrderGoodsSerialzier(serializers.ModelSerializer):
    goods = GoodsSerializer(many=False)
    class Meta:
        model = OrderGoods
        fields = "__all__"

class OrderDetailSerializer(serializers.ModelSerializer):
    goods = OrderGoodsSerialzier(many=True)
    class Meta:
        model = OrderInfo
        fields = "__all__"

class OrderSerializer(serializers.ModelSerializer):
    user = serializers.HiddenField(
        default=serializers.CurrentUserDefault()
    )

    pay_status = serializers.CharField(read_only=True)
    trade_no = serializers.CharField(read_only=True)
    order_sn = serializers.CharField(read_only=True)
    pay_time = serializers.DateTimeField(read_only=True)


    def generate_order_sn(self):
        # 当前时间+userid+随机数
        from random import Random
        random_ins = Random()
        order_sn = "{time_str}{userid}{ranstr}".format(time_str=time.strftime("%Y%m%d%H%M%S"),
                                                       userid=self.context["request"].user.id, ranstr=random_ins.randint(10, 99))

        return order_sn

    def validate(self, attrs):
        attrs["order_sn"] = self.generate_order_sn()
        return attrs

    class Meta:
        model = OrderInfo
        fields = "__all__"

url.py

from django.conf.urls import url,include
# from django.contrib import admin
import xadmin
from Mxshop.settings import MEDIA_ROOT
from django.views.static import serve
from rest_framework.documentation import include_docs_urls
from rest_framework.routers import DefaultRouter
from rest_framework.authtoken import views
from rest_framework_jwt.views import obtain_jwt_token

from goods.views import GoodsListViewSet,CategoryViewset,HotSearchsViewset
from users.views import SmsCodeViewset,UserViewset
from user_operation.views import UserFavViewset, LeavingMessageViewset, AddressViewset
from trade.views import ShoppingCartViewset, OrderViewset

router = DefaultRouter()

#配置goods的url
router.register(r'goods', GoodsListViewSet, base_name="goods")

#配置category的url
router.register(r'categorys', CategoryViewset, base_name="categorys")

router.register(r'codes', SmsCodeViewset, base_name="codes")

router.register(r'hotsearchs', HotSearchsViewset, base_name="hotsearchs")

router.register(r'users', UserViewset, base_name="users")

#收藏
router.register(r'userfavs', UserFavViewset, base_name="userfavs")

#留言
router.register(r'messages', LeavingMessageViewset, base_name="messages")

#收货地址
router.register(r'address', AddressViewset, base_name="address")

#购物车url
router.register(r'shopcarts', ShoppingCartViewset, base_name="shopcarts")

#订单相关url
router.register(r'orders', OrderViewset, base_name="orders")

goods_list = GoodsListViewSet.as_view({
    'get': 'list',
})

urlpatterns = [
    url(r'^xadmin/', xadmin.site.urls),
    url(r'^media/(?P.*)$', serve, {"document_root": MEDIA_ROOT}),

    url(r'^', include(router.urls)),

    url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),

    url(r'docs/',include_docs_urls(title='GOHB生鲜')),

    # drf自带的token认证模式
    url(r'^api-token-auth/', views.obtain_auth_token),

    # jwt的认证接口
    url(r'^login/', obtain_jwt_token),
]

在后台测试订单留言等功能

修改api.js文件夹下订单相关操作ip

提交订单

查看订单正常提交

点击订单，查看订单详情正常显示