Django 前後端分離實戰項目 生鮮超市（十三）之訂單管理

訂單管理

前言

所有vue接口全部在src/api/api.js文件下

代碼已上傳至github：https://github.com/kalipoison/fresh-market

此項目僅學習用途

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文件夾下views.py代碼如下：

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):
    """
    購物車功能
    list:
        獲取購物車詳情
    create：
        加入購物車
    delete：
        刪除購物記錄
    """
    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):
    """
    訂單管理
    list:
        獲取個人訂單
    delete:
        刪除訂單
    create：
        新增訂單
    """
    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文件夾下serializers.py代碼如下：

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="數量",min_value=1,
                                    error_messages={
                                        "min_value":"商品數量不能小於一",
                                        "required": "請選擇購買數量"
                                    })
    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):
        #修改商品數量
        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):
        # 當前時間+userid+隨機數
        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")

#收貨地址
router.register(r'address', AddressViewset, base_name="address")

#購物車url
router.register(r'shopcarts', ShoppingCartViewset, base_name="shopcarts")

#訂單相關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<path>.*)$', 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生鮮')),

    # drf自帶的token認證模式
    url(r'^api-token-auth/', views.obtain_auth_token),

    # jwt的認證接口
    url(r'^login/', obtain_jwt_token),
]

在後臺測試訂單留言等功能

修改api.js文件夾下訂單相關操作ip

提交訂單

查看訂單正常提交

點擊訂單，查看訂單詳情正常顯示