def add_order(request):
post = request.POST
if post:
address = Address.objects.get(pk=int(post.get('address')))
address = '%s （%s收） %s' % (address.add, address.recipients,
address.cel)
cart_ids = post.get('cart_ids').split(',')
cart_ids = [int(i) for i in cart_ids]
carts = CartInfo.objects.filter(pk__in=cart_ids)
sid = transaction.savepoint() # 事务起点
try:
# 创建订单
order = OrderInfo()
now = datetime.now()
order.pk = int(
now.strftime('%s')) # 订单编号：当前时间now.strftime('%Y%m%d%H%M%S')
order.user_id = int(request.session.get('userid')) # 用户编号
order.address = address # 地址
order.total = 0 # 总金额
order.save()
# 1/0 异常模拟
# 创建订单明细
total = 0
for cart in carts:
if cart.nums > cart.cart_good.stock: # 如果数量大于库存
transaction.savepoint_rollback(sid) # 回滚到起点
return redirect(reverse('cart:carts')) # 重定向到购物车
else:
order_detail = OrderDetailInfo()
order_detail.good = cart.cart_good
order_detail.order = order
order_detail.price = cart.cart_good.price
order_detail.count = cart.nums
order_detail.save()
total += float(cart.money())
cart.delete()
# 修改总价
order.total = total + 10
order.save()
transaction.savepoint_commit(sid) # 提交事务
return redirect(reverse('order:play', args=(order.pk, )))
except Exception as e:
print('异常：%s' % e)
transaction.savepoint_rollback(sid) # 回滚到起点
raise e # 抛出异常，用于调试
return redirect(reverse('order:user_order')) # 重定向到订单页面
def place_order(request):
if request.method == 'GET':
# 获取商品信息
carts = []
# 商品总数量
goods_count = 0
# 获取登录用户
token = request.COOKIES.get('token')
user = UserToken.objects.filter(token=token).first().user
# 用户地址信息
user_addresses = UserAddress.objects.filter(user=user).all()
try:
# 获取token，如果是商品详情点了立即购买
cart_id = request.GET.get('goods_id')
cart_num = int(request.GET.get('goods_num'))
# 从立即购买跳转来的
if cart_id:
goods = Goods.objects.get(id=cart_id)
goods_ = dict(model_to_dict(goods))
goods_['num'] = cart_num
goods_['sum'] = cart_num * goods_['shop_price']
carts.append(goods_)
goods_count = cart_num
# 加入购物车
shop_carts = Cart()
shop_carts.nums = cart_num
shop_carts.goods = Goods.objects.filter(id=cart_id).first()
shop_carts.user = User.objects.filter(username=user.username).first()
shop_carts.is_select = 1
shop_carts.save()
# 如果空的话 按购物车选中商品创建订单
except:
cart_is = Cart.objects.filter(is_select=1).all()
for cart in cart_is:
goods = Goods.objects.get(id=cart.goods_id)
goods_ = dict(model_to_dict(goods))
# 转字典添加数量key
goods_['num'] = cart.nums
goods_['sum'] = cart.nums * goods_['shop_price']
carts.append(goods_)
goods_count = sum([i.nums for i in cart_is])
# 商品总价格
goods_sum = sum([i['num'] * i['shop_price'] for i in carts])
return render(request, 'web/place_order.html', {'user_addresses': user_addresses, 'carts': carts,
'goods_count': goods_count, 'goods_sum': goods_sum})
if request.method == 'POST':
site_id = int(request.POST.get('site'))
pay = int(request.POST.get('pay'))
# 获取登录用户
token = request.COOKIES.get('token')
user = UserToken.objects.filter(token=token).first().user
# 商品信息
carts = []
cart_is = Cart.objects.filter(is_select=1).all()
for cart in cart_is:
goods = Goods.objects.get(id=cart.goods_id)
goods_ = dict(model_to_dict(goods))
# 转字典添加数量key
goods_['num'] = cart.nums
carts.append(goods_)
# 总价格和 +10 邮费 全不包邮
goods_sum = sum([i['num'] * i['shop_price'] for i in carts]) + 10
# 地址表
address = UserAddress.objects.filter(id=site_id).first()
# 获取订单号 交易号
order_sn = get_order_sn()
order = OrderInfo()
# 保存信息
order.user = user
order.order_sn = order_sn
order.trade_no = get_trade_no()
order.order_mount = goods_sum
order.address = address.address
order.signer_name = address.signer_name
order.signer_mobile = address.signer_mobile
order.save()
# 保存关联的详情表
for i in cart_is:
or_goods = OrderGoods()
or_goods.order = OrderInfo.objects.filter(user=user).first()
or_goods.order_sn = order_sn
or_goods.goods = Goods.objects.filter(id=i.goods_id).first()
or_goods.goods_nums = i.nums
or_goods.save()
# 修改商品库存
i.goods.goods_nums -= i.nums
i.save()
# 删除已下单的商品
cart_is.delete()
return JsonResponse({'code': 200, 'msg': '请求成功'})