从项目中学习Django 天天生鲜---------订单_大型购物网站天天生鲜python

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 20200824142104
    orderdate = 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id
    orders = models.ForeignKey(to=Orders, on_delete=models.CASCADE)  # 订单和订单详情关系
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python3 manage.py makemigrations
python3 manage.py migrate
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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=username
        buyer_obj.email=email
        buyer_obj.phone=phone
        buyer_obj.address=address
        buyer_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False
    for address_obj in address_obj_list:
        if address_obj.id != int(id):
            address_obj.isdefault=False
        else:
            address_obj.isdefault = True
        address_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=name
        address_obj.postcode=postcode
        address_obj.phone=phone
        address_obj.address=address
        address_obj.save()
        return redirect("/usercenter")
    return render(request,"buyer/edit-address.html",{"address_obj":address_obj})

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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.phone
    else:
        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())
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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 = 0
    goodsnumtotal = 0
    if 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_num
            price = shoppingcar_obj.goodsprice
            shoppingcar_obj.goodsxiaoji = price * int(shoppingcar_obj.goodsnum)
            total+=shoppingcar_obj.goodsxiaoji
            goodsnumtotal+=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.phone
        else:
            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())
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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())

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路由urls.py

from django.urls import path
from . import views

urlpatterns = [
    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

]

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