第12次12： 修改和删除收货地址

第1步：在users应用下views.py中新增实现修改收货地址的视图类

class UpdateDestroyAddressView(LoginRequiredJSONMixin, View):
    def put(self, request, address_id):
        """修改收货地址"""
        json_dict = json.loads(request.body.decode())
        receiver = json_dict.get('receiver')
        province_id = json_dict.get('province_id')
        city_id = json_dict.get('city_id')
        district_id = json_dict.get('district_id')
        place = json_dict.get('place')
        mobile = json_dict.get('mobile')
        tel = json_dict.get('tel')
        email = json_dict.get('email')
        # 校验参数
        if not all([receiver, province_id, city_id, district_id, place, mobile]):
            return HttpResponseForbidden('缺少必传参数')
        if not re.match(r'^1[3-9]\d{9}$', mobile):
            return HttpResponseForbidden('参数mobile有误')
        if tel:
            if not re.match(r'^(0[0-9]{2,3}-)?([2-9][0-9]{6,7})+(-[0-9]{1,4})?$', tel):
                return HttpResponseForbidden('参数tel有误')
        if email:
            if not re.match(r'^[a-z0-9][\w\.\-]*@[a-z0-9\-]+(\.[a-z]{2,5}){1,2}$', email):
                return HttpResponseForbidden('参数email有误')
        # 判断地址是否存在,并更新地址信息
        try:
            Address.objects.filter(id=address_id).update(
                user=request.user, title=receiver, receiver=receiver,
                province_id=province_id, city_id=city_id, place=place,
                district_id=district_id, mobile=mobile, tel=tel,
                email=email
            )
        except Exception as e:
            logger.error(e)
            return JsonResponse({'code': RETCODE.DBERR, 'errmsg': '更新地址失败'})
        # 构造响应数据
        address = Address.objects.get(id=address_id)
        address_dict = {
            "id": address.id, "title": address.title,
            "receiver": address.receiver, "province": address.province.name,
            "city": address.city.name, "district": address.district.name,
            "place": address.place, "mobile": address.mobile,
            "tel": address.tel, "email": address.email
        }
        # 响应更新地址结果
        return JsonResponse({'code': RETCODE.OK, 'errmsg': '更新地址成功', 'address': address_dict})

    def delete(self, request, address_id):
        # 获取默认收货地址的id
        default_address_id = request.user.default_address
        # 判断用户删除的是否是默认收货地址，如果是，那么将默认收货地址字段设置为None，
        # 如果不是，那么直接删除
        try:
            address = Address.objects.get(id=address_id)
            if default_address_id == address.id:
                request.user.default_address_id = None
                request.user.save()
            address.is_deleted = True
            address.save()
        except Exception as e:
            logger.error(e)
            return JsonResponse({'code': RETCODE.DBERR,
                                 'errmsg': '删除地址失败'})
        # 返回响应结果
        return JsonResponse({'code': RETCODE.OK, 'errmsg': '删除地址成功'})

第2步：在users应用下配置路由

path('addresses/<int:address_id>/', views.UpdateDestroyAddressView.as_view()),