效果图

收货地址

去结算

立即购买

我的订单

项目步骤

逻辑分析

• 现实中购物流程一般是:立即购买(加入购物车)->填写收货信息表->提交订单->支付->我的订单
• 所以这里在点击购买前需要添加收货信息表,所以需要创建一个收货信息表
• 收货信息表应该包含收件人,邮编,电话,地址,是否为默认收货地址
• 因为用户可以自行选择默认地址,所以需要一个路由来改变默认收货地址
• 当立即购买还是去结算购物车都需要生成一个属于当前用户的订单,每个订单则需要展示其所有商品详情

建模

buyer/models.py

....
#地址
class Receiver(models.Model):"""收件人实体类"""name = models.CharField(max_length=64)  # 姓名postcode = models.CharField(max_length=64)  # 邮编phone = models.CharField(max_length=64, null=True)  # 电话address = models.CharField(max_length=64, null=True)  # 地址isdefault = models.BooleanField(default=1, verbose_name='默认收货地址')  # 是否为默认收获地址buyer = models.ForeignKey(to=Buyer, on_delete=models.CASCADE, verbose_name='所属买家', null=True)  # 所熟买家# 订单表和订单详情表(一对多)
# 订单表格中-->> 订单编号、总价格、....
# 订单详情表 -->> 商品的详情信息。
# 订单表
class Orders(models.Model):orderno = models.CharField(max_length=128)  # 订单号 20200824142104orderdate = models.DateTimeField()  # 订单日期totalnum = models.CharField(max_length=32)  # 总价address = models.CharField(max_length=128)  # 用户地址，state = models.BooleanField(default=False)  # 订单状态 默认没有支付buyer = models.ForeignKey(to=Buyer, on_delete=models.CASCADE)  # 用户关系# 订单详情表
class OrderDetail(models.Model):goodsname = models.CharField(max_length=32)  # 商品名称goodsprice = models.DecimalField(max_digits=5, decimal_places=2)  # 商品价格goodsnum = models.IntegerField()  # 数量image = models.CharField(max_length=32)  # 商品图片goodsxiaoji = models.CharField(max_length=32)  # 商品小计storeid = models.CharField(max_length=32)  # 店铺idorders = models.ForeignKey(to=Orders, on_delete=models.CASCADE)  # 订单和订单详情关系

python3 manage.py makemigrations
python3 manage.py migrate

代码实现

添加地址和修改默认地址

templates/buyer/user-center-info.html

buyer/views.py

....
#个人信息
def user_center_info(request):buyer_id = request.COOKIES.get("buyer_id")buyer_obj = Buyer.objects.get(id=buyer_id)address_obj_list = Receiver.objects.filter(buyer_id=buyer_id).all()return render(request,"buyer/user-center-info.html",locals())
#修改个人信息
def edit_user(request):buyer_id = request.COOKIES.get("buyer_id")buyer_obj = Buyer.objects.get(id=buyer_id)if request.method=="POST":username = request.POST.get("username")email = request.POST.get("email")phone = request.POST.get("phone")address = request.POST.get("address")buyer_obj.username=usernamebuyer_obj.email=emailbuyer_obj.phone=phonebuyer_obj.address=addressbuyer_obj.save()return redirect("/usercenter")return render(request,"buyer/edit-user.html",{"buyer_obj":buyer_obj})
#添加收件人信息
def add_address(request):buyer_id = request.COOKIES.get("buyer_id")address_obj_list = Receiver.objects.all()name = request.POST.get("name")postcode = request.POST.get("postcode")phone = request.POST.get("phone")address = request.POST.get("address")if address_obj_list:receiver = Receiver.objects.create(name=name, postcode=postcode, phone=phone, address=address,isdefault=False, buyer_id=buyer_id)else:receiver = Receiver.objects.create(name=name, postcode=postcode, phone=phone, address=address,buyer_id=buyer_id)receiver.save()return JsonResponse({"code":"1"})
#改变默认收货人
def update_address_state(request):id=request.GET.get("id")buyer_id = request.COOKIES.get("buyer_id")buyer_obj = Buyer.objects.get(id=buyer_id)# 获取当前用户下的所有收货地址address_obj_list = Receiver.objects.filter(buyer_id=buyer_id).all()# 遍历所有地址,将用户点击的那个设为默认,其他都设为Falsefor address_obj in address_obj_list:if address_obj.id != int(id):address_obj.isdefault=Falseelse:address_obj.isdefault = Trueaddress_obj.save()return JsonResponse({"code": "1"})
#编辑收件人信息
def edit_address(request):id=request.GET.get("id")buyer_id = request.COOKIES.get("buyer_id")buyer_obj = Buyer.objects.get(id=buyer_id)address_obj=Receiver.objects.get(id=id)if request.method=='POST':name = request.POST.get("name")postcode = request.POST.get("postcode")phone = request.POST.get("phone")address = request.POST.get("address")address_obj.name=nameaddress_obj.postcode=postcodeaddress_obj.phone=phoneaddress_obj.address=addressaddress_obj.save()return redirect("/usercenter")return render(request,"buyer/edit-address.html",{"address_obj":address_obj})

立即购买

逻辑分析

• 当用户点击立即购买,则后台应该马上添加订单,然后跳转到订单页面
• 问题是如何传该商品的数目给后台
• 这里可以通过js获取number并跳转到后台,也可以用ajax这里作者就偷懒直接用js跳转

代码实现

detail.html

buyer/views.py

#立即购买
def now_buy(request):id=request.GET.get("id")num=request.GET.get("number")goods=Goods.objects.get(id=id)total=goods.price*int(num)buyer_id=request.COOKIES.get("buyer_id")receiver=Receiver.objects.filter(buyer_id=buyer_id).first()print(receiver)times = datetime.datetime.now()# 订单号orderno = times.strftime("%Y%m%d%H%M%S")# 订单时间orderdata = times.strftime("%Y-%m-%d %H:%M:%S")# 用户地址if receiver:address = receiver.address + '   (' + receiver.name + ' 收)' + '   ' + receiver.phoneelse:address = ''orders_obj = Orders.objects.create(orderno=orderno, orderdate=orderdata, totalnum=total, address=address,buyer_id=buyer_id)orders_obj.save()# 创建订单详情表orderdetail_obj=OrderDetail.objects.create(goodsname=goods.name,goodsprice=goods.price,goodsnum=num,image=goods.image,goodsxiaoji=total,storeid=goods.store_id,orders_id=orders_obj.id)orderdetail_obj.save()return render(request,"buyer/place_order_now.html",locals())

去结算

逻辑分析

• 这里和立即购买差不多,但是去结算是以表单的形式传递给后台,所以就可无需js
• 但是这里后台获取的是select传来的数据所以要以列表的形式去接收传来的 数据

代码实现

# 去结算
def place_order(request):buyer_id = request.COOKIES.get("buyer_id")receiver = Receiver.objects.filter(buyer_id=buyer_id, isdefault=True).first()# 订单总价total = 0goodsnumtotal = 0if request.method=="POST":# 获取表单所有商品id和数目shopping_id_list=request.POST.getlist("shoppingids")shopping_num_list=request.POST.getlist("search")for shopping_id,shopping_num in zip(shopping_id_list,shopping_num_list):shoppingcar_obj=ShoppingCar.objects.get(id=shopping_id)# 将商品的数目和小计进行更新shoppingcar_obj.goodsnum=shopping_numprice = shoppingcar_obj.goodspriceshoppingcar_obj.goodsxiaoji = price * int(shoppingcar_obj.goodsnum)total+=shoppingcar_obj.goodsxiaojigoodsnumtotal+=int(shoppingcar_obj.goodsnum)shoppingcar_obj.save()#生成订单# 生成订单时间times=datetime.datetime.now()# 订单号orderno=times.strftime("%Y%m%d%H%M%S")# 订单时间orderdata=times.strftime("%Y-%m-%d %H:%M:%S")# 用户地址if receiver:address=receiver.address+'   ('+receiver.name+' 收)'+'   '+receiver.phoneelse:address=''orders_obj=Orders.objects.create(orderno=orderno,orderdate=orderdata,totalnum=total,address=address,buyer_id=buyer_id)orders_obj.save()# 生成详细订单for shopping_id, shopping_num in zip(shopping_id_list, shopping_num_list):shoppingcar_obj = ShoppingCar.objects.get(id=shopping_id)orderdetail=OrderDetail.objects.create(goodsname=shoppingcar_obj.goodsname,goodsprice=shoppingcar_obj.goodsprice,goodsnum=shoppingcar_obj.goodsnum,goodsxiaoji=shoppingcar_obj.goodsxiaoji,image=shoppingcar_obj.image,orders_id=orders_obj.id)orderdetail.save()# 删除购物车shoppingcar_obj.delete()else:order_id=request.GET.get("order_id")orderdetail_list=OrderDetail.objects.filter(orders_id=order_id).all()for orderdetail in orderdetail_list:total+=float(orderdetail.goodsxiaoji)goodsnumtotal+=int(orderdetail.goodsnum)orders_obj=Orders.objects.filter(id=order_id).first()return render(request,"buyer/place_order.html",locals())

我的订单

buyer/views.py

.....
# 我的订单
def myorders(request):buyer_id=request.COOKIES.get("buyer_id")orders_obj_list=Orders.objects.filter(buyer_id=buyer_id).all()return render(request,'buyer/myorders.html',locals())

路由urls.py

from django.urls import path
from . import viewsurlpatterns = [path('', views.index),  # 首页path('index', views.index),  # 首页path('login', views.login),  # 登录path('email_login', views.email_login),  # 邮箱登录path('get_yzm_ajax', views.yzm_ajax),  # 获取邮箱验证码path('logout', views.logout),  # 登出path('register', views.register),  # 注册path('detail', views.detail),  # 详情path('list', views.list),  # 商品列表# path('more_list_view',views.more_list_view), #显示更多path('more_list_view', views.GoodsView.as_view()),  # 显示更多视图版path('add_cart', views.add_cart),  # 加入购物车path('cart', views.cart),  # 购物车path('delete_cart', views.delete_cart),  # 删除购物车中的商品#新加path('usercenter', views.user_center_info),  # 个人信息path('edit_user', views.edit_user),  # 修改个人信息path('add_address', views.add_address),  # 添加收件人地址path('edit_address', views.edit_address),  # 添加收件人地址path('update_address_state', views.update_address_state),  # 改变默认收货人path('place_order', views.place_order),  # 去结算path('now_buy', views.now_buy),  # 立即购买path('myorders', views.myorders),  # 我的订单]