def post(self, request):
res = BaseResponse()
# 拿到前端传过来的数据
course_id = request.data.get('course')
price_policy_id = request.data.get('price_policy')
user = request.user
multi = request.data.get('multi') # 传来多个课程参数
# 检测数据合法
try:
# 这里可以判断是一个课程还是多个课程
# 如果前端传来单个课程参数
if not multi:
# {"course": 1, "price_policy": 1}
res = self.post_func(res, course_id, price_policy_id, user)
# 如果前端传来多个课程参数
else:
for item in multi:
# {"multi":[{"course":2,"price_policy":10},{"course":3,"price_policy":4}]}
course = item['course']
price_policy = item['price_policy']
ret = self.post_func(res, course, price_policy, user)
except Exception as e:
print(e)
res.code = 1042
res.error = '操作失败，请重试'
return Response(res.dict)
else:
res.data = '加入购物车成功'
return Response(res.dict)
def get(self, request):
# 调用业务数据库的数据进行查看展示
"""
账单详情：
[
账单id:{
商品名：
简介：
数量：
价格：
图片：
},
]
创建订单时间：
下单付款时间:
流水号:
付款方式:
实付金额:
收获地址：
"""
res = BaseResponse()
user_trades = models.TradeRecord.objects.filter(account=request.user).all()
user_order = models.OrderDetail.objects.filter(order__account=request.user).all()
pay_dict = {}
# 商品数量
order_menu = {}
for order in user_order:
order_menu[order.object_id] = {
'real_price': order.price,
'order_date': order.order.date,
'pay_date': order.order.pay_time
}
for trade in user_trades:
product = eval(trade.product)
# print(product)
pay_dict[trade.id] = {}
for item in product:
brief = models.Course.objects.filter(id=int(item['id'])).first().coursedetail.brief
pay_dict[trade.id][item['id']] = item
pay_dict[trade.id][item['id']]['brief'] = brief
for order_id in order_menu:
if int(order_id) == int(item['id']):
pay_dict[trade.id][item['id']]['real_price'] = order_menu[order_id]['real_price']
pay_dict[trade.id]['order_date'] = order_menu[order_id]['order_date']
pay_dict[trade.id]['pay_date'] = order_menu[order_id]['pay_date']
res.data = pay_dict
pay_dict[trade.id]['transaction_number'] = trade.transaction_number
pay_dict[trade.id]['user_address'] = trade.user_address
pay_dict[trade.id]['pay_success_time'] = trade.date
return Response(res.dict)
def post(self, request):
"""创建订单"""
res = BaseResponse()
# 拿到前端传来的课程id数据
course_list = request.data.get('course_list')
user = request.user
try:
# 因为前段传来的有单个和多个，所以作解耦
if isinstance(course_list, list):
for course_id in course_list:
course_id = int(course_id)
res = self.post_func(user.id, course_id, res)
else:
course_id = int(course_list) # 传来一个数据
res = self.post_func(user.id, course_id, res)
except Exception as e:
print(e)
res.code = 1071
res.error = '操作失败，请重试'
return Response(res.dict)
else:
res.data = '加入结算中心成功'
return Response(res.dict)
def post(self, request):
res = BaseResponse()
user_obj = RegisterSerializer(data=request.data)
if user_obj.is_valid():
user_obj.save()
res.data = user_obj.data
else:
res.code = 1020
res.error = user_obj.errors
return Response(res.dict)
def put(self, request):
res = BaseResponse()
# 获取前端传来的数据
course_id = request.data.get('course')
course_coupon_id = request.data.get('coupon')
global_coupon_id = request.data.get('global_coupon')
user_id = request.user.pk
key = SETTLEMENT_KEY % (user_id, course_id)
global_key = GLOBAL_COUPON_KEY % user_id
# 验证数据合法
if course_id:
if not CONN.exists(key):
res.code = 1080
res.error = '课程id不合法'
return Response(res.dict)
if course_coupon_id:
user_coupon_dict = json.loads(CONN.hget(key, 'course_coupon_dict'))
if str(course_coupon_id) not in user_coupon_dict:
res.code = 1081
res.error = '课程优惠券id不合法'
return Response(res.dict)
CONN.hset(key, 'default_coupon_id', course_coupon_id)
if global_coupon_id:
if not CONN.exists(global_key):
res.code = 1082
res.error = '全局优惠券id不合法'
return Response(res.dict)
CONN.hset(global_key, 'default_global_coupon_id', global_coupon_id)
res.data = '已选择优惠券'
return Response(res.dict)
def delete(self, request):
"""删除账单"""
res = BaseResponse()
orders = request.data.get('order')
user = request.user
if not isinstance(orders, int):
for order_id in orders:
res = self.delete_func(user, order_id, res)
else:
res = self.delete_func(user, orders, res)
res.data = '账单删除成功'
return Response(res.dict)
def delete(self, request):
"""取消订单"""
res = BaseResponse()
user_id = request.user.pk
course_list = request.data.get('course')
if not isinstance(course_list, int):
for course in course_list:
res = self.delete_func(user_id, course, res)
else:
res = self.delete_func(user_id, course_list, res)
res.data = '订单删除成功'
return Response(res.dict)
def post(self, request):
res = BaseResponse()
username = request.data.get('username')
pwd = request.data.get('pwd')
user_obj = models.Account.objects.filter(username=username,
pwd=pwd).first()
if not user_obj:
res.code = 1031
res.error = '用户名或者密码错误'
conn = redis.Redis(connection_pool=POOL)
# 用户登录成功创建一个token，存到redis中
try:
token = uuid.uuid4()
# conn.set(str(token), user_obj.id, ex=60) # ex是用来设置过期时间
conn.set(str(token), user_obj.id)
res.code = 1030
res.data = token
except Exception as e:
res.code = 1032
res.error = '创建令牌失败'
return Response(res.dict)
def delete(self, request):
res = BaseResponse()
user_id = request.user.pk
course_id_list = request.data.get('course_id_list', '')
for course_id in course_id_list:
key = SHOPPINGCAR_KEY % (user_id, course_id)
if not CONN.exists(key):
res.code = 1061
res.error = '课程id不合法'
return Response(res.dict)
CONN.delete(key)
res.data = '删除成功'
return Response(res.dict)
def get(self, request):
res = BaseResponse()
# 从redis数据库中取出购物车的数据
user_id = request.user.pk
key = SHOPPING_KEY % (user_id, '*')
# 找到跟当前用户相关的所有购物车数据的key
all_keys = CONN.scan_iter(key)
course_info = []
for key in all_keys:
course_info.append(CONN.hgetall(key))
if len(course_info) == 0:
res.data = '您的购物车空空如也哦~'
else:
res.data = course_info
# 返回给前端
return Response(res.dict)
def post(self, request):
res = BaseResponse()
user = request.user
user_obj = models.Student.objects.filter(account=user).first()
if not user_obj:
res.code = 1401
res.data = '非法用户'
return Response(res.dict)
tutor = user_obj.tutor
question = request.data.get('question')
models.StudyQuestion.objects.create(student=user,
question=question,
tutor=tutor)
res.data = '提交问题成功'
return Response(res.dict)
def post(self, request):
res = BaseResponse()
username = request.data.get('username')
passwd = request.data.get('passwd')
# 密码加盐
hash_key = 'password'
passwd = passwd + hash_key
passwd_md5 = hashlib.md5(passwd.encode()).hexdigest()
user_obj = Account.objects.filter(username=username,
passwd=passwd_md5).first()
if not user_obj:
res.code = 1030
res.error = '用户名密码不匹配'
try:
token = uuid.uuid4()
RedisConn.set(str(token), user_obj.id)
shop_cart = ShoppingView().get(request) # 购物车数据
res.data = {
'access_token': token,
'avatar':
'http://127.0.0.1:8000/media/avatar.png', # 真实部署时改成公网地址
'username': user_obj.username,
'shop_cart_num': shop_cart.data.get('data'),
'balance': user_obj.balance
}
# 头像，购物车数据，token,用户名,账户余额
except Exception as e:
print('........', e)
res.code = 1031
res.error = '创建令牌失败'
return Response(res.dict)
def put(self, request):
res = BaseResponse()
# 获取前端传来的用户id和课程id，和价格策略id
user_id = request.user.pk
course_id = request.data.get('course_id', '')
price_policy_id = request.data.get('price_policy_id', '')
key = SHOPPINGCAR_KEY % (user_id, course_id)
# 判断课程是否合法
if not CONN.exists(key):
res.code = 1061
res.error = '课程id不合法'
return Response(res.dict)
# 判断价格策略id是否合法
price_policy_dict = json.loads(CONN.hget(key, 'price_policy_dict'))
if str(price_policy_id) not in price_policy_dict:
res.code = 1062
res.error = '价格策略不合法'
return Response(res.dict)
# 修改数据
CONN.hset(key, "default_price_policy_id", price_policy_id)
res.data = '更新成功'
return Response(res.dict)
def post(self, request):
"""领取优惠券"""
res = BaseResponse()
# 优惠券只能一个一个领取，所以不考虑多个操作
coupon_id = request.data.get('coupon')
# 检查数据合法性
coupon_obj = models.Coupon.objects.filter(id=coupon_id).first()
if not coupon_obj:
res.code = 1108
res.error = '优惠券id不合法'
return Response(res.dict)
models.Coupon.objects.filter(id=coupon_id).update(count=F('count') - 1)
models.CouponDetail.objects.create(coupon=coupon_obj, number=str(time.time()),
account=request.user, get_time=now())
res.data = '优惠券领取成功'
return Response(res.dict)
def get(self, request):
"""获取订单数据"""
res = BaseResponse()
# 获取redis里的数据
user_id = request.user.pk
key = SETTLEMENT_KEY % (user_id, '*')
global_key = GLOBAL_COUPON_KEY % user_id
user_settlement_keys = CONN.scan_iter(key)
settlement_info = []
for field in user_settlement_keys:
settlement_info.append(CONN.hgetall(field))
global_data = CONN.hgetall(global_key)
res.data = {
'settlement_info': settlement_info,
'global_coupon_dict': global_data
}
return Response(res.dict)
def get(self, request):
res = BaseResponse()
user_id = request.user.pk
# *表示在redis中查找数据时是进行模糊匹配
shopping_car_key = SHOPPINGCAR_KEY % (user_id, "*")
# scan_iter在redis中进行模糊查询，返回的是一个生成器
all_keys = CONN.scan_iter(shopping_car_key)
ret = []
for key in all_keys:
ret.append(CONN.hgetall(key))
res.data = ret
return Response(res.dict)
def get(self, request):
"""查看优惠券"""
res = BaseResponse()
all_coupon = models.Coupon.objects.all()
coupon_dict = {}
for item in all_coupon:
coupon_dict[item.id] = {
'id': item.id,
'title': item.title,
'brief': item.brief,
'coupon_type': item.coupon_type,
'coupon_type_display': item.get_coupon_type_display(),
'grant_begin_time': item.grant_begin_time,
'grant_end_time': item.grant_end_time,
'start_time': item.start_time,
'end_time': item.end_time,
'period': item.date
}
res.data = coupon_dict
return Response(res.dict)
def get(self, request):
res = BaseResponse()
user_id = request.user.pk
settlement_key = SETTLEMENT_KEY % (user_id, "*")
global_coupon_key = GLOBAL_COUPON_KEY % user_id
all_keys = CONN.scan_iter(settlement_key)
ret = []
for key in all_keys:
ret.append(CONN.hgetall(key))
global_coupon_info = CONN.hgetall(global_coupon_key)
res.data = {
"settlement_info": ret,
"global_coupon_info": global_coupon_info
}
return Response(res.dict)
def delete(self, request):
res = BaseResponse()
# 拿到前端传过来的数据
course_list = request.data.get('course')
user = request.user
# 检测是否有该课程
try:
# 如果前端传来的数据只有一个
if not isinstance(course_list, list):
res = self.delete_func(user, course_list, res)
# 如果前端传来的数据有多个
else:
for course in course_list:
res = self.delete_func(user, course, res)
except Exception as e:
print(e)
res.code = 1061
res.error = '操作失败请重试'
return Response(res.dict)
else:
res.data = '已删除选中课程'
return Response(res.dict)
def get(self, request):
res = BaseResponse()
# 从redis数据库中取出购物车的数据
user_id = request.user.pk
key = SHOPPING_KEY % (user_id, '*')
# 找到跟当前用户相关的所有购物车数据的key
all_keys = CONN.scan_iter(key)
course_info = []
for key in all_keys:
course_info.append(CONN.hgetall(key))
if len(course_info) == 0:
res.data = 0
else:
for index, item in enumerate(course_info):
course_info[index]['price_policy_dict'] = json.loads(
item['price_policy_dict'])
res.data = course_info
# 返回给前端
return Response(res.dict)
def get(self, request):
# 获取用户的账单
res = BaseResponse()
order_res = PaymentView().get(request) # 当前用户账单数据
user_order_products = order_res.data['data'].values()
course_ids = []
for product in user_order_products:
print(product)
for item in list(product.keys()):
if isinstance(item, int):
course_ids.append(item)
course_ids = list(set(course_ids)) # 去重
# 从账单中拿到对应的商品数据
courses = []
for course_id in course_ids:
course_res = CourseDetailView().get(request, course_id)
if len(courses) == 0:
courses = course_res.data
else:
courses.extend(course_res.data)
res.data = courses
# 返回展示已购买的商品内容，视频链接接入保利威视频，作业，
return Response(res.dict)
def get(self, request):
res = BaseResponse()
user_coupons = models.Coupon.objects.filter(
coupondetail__account=request.user,
coupondetail__status=0).all().distinct()
coupon_dict = {}
for item in user_coupons:
coupon_dict[item.id] = {
'id': item.id,
'object_id': item.object_id,
'title': item.title,
'brief': item.brief,
'equal_money': item.equal_money,
'off_percent': item.off_percent,
'coupon_type': item.coupon_type,
'coupon_type_display': item.get_coupon_type_display(),
'grant_begin_time': item.grant_begin_time,
'grant_end_time': item.grant_end_time,
'start_time': item.start_time,
'end_time': item.end_time,
'period': str(item.period) + '天'
}
res.data = coupon_dict
return Response(res.dict)
def put(self, request):
res = BaseResponse()
user_id = user_id = request.user.pk
course_id = request.data.get('course_id', '')
course_coupon_id = request.data.get('course_coupon_id', '')
global_coupon_id = request.data.get('global_coupon_id', '')
# 校验课程合法性
key = SETTLEMENT_KEY % (user_id, course_id)
if course_id:
if not CONN.exists(key):
res.code = 1071
res.error = '课程id不合法'
return Response(res.dict)
# 校验课程优惠券是否合法
if course_coupon_id:
course_coupon_dict = json.loads(
CONN.hget(key, 'course_coupon_dict'))
if str(course_coupon_id) not in course_coupon_dict:
res.code = 1072
res.error = '课程优惠券id不合法'
return Response(res.dict)
# 修改redis中数据
CONN.hset(key, "default_course_coupon_id", course_coupon_id)
# 校验全局优惠券是否合法
if global_coupon_id:
global_coupon_key = GLOBAL_COUPON_KEY % user_id
if not CONN.exists(global_coupon_key):
res.code = 1072
res.error = '全局优惠券id不合法'
return Response(res.dict)
# 修改redis中数据
CONN.hset(global_coupon_key, "default_global_coupon_id",
global_coupon_id)
res.data = '更新成功'
return Response(res.dict)
def put(self, request):
"""
对账单对应的课程做评价
order_id:{
{
"course":xx,
"assess":xx,
}
}
or
{
"course":xx,
"assess":xx,
}
以下功能暂时用不到，后续再补充：
退款,退货
售后服务、纠纷
追评
"""
# 评价有两种，一种是从账单页面的评价(带有订单id)，一种是学习界面里的评价(不带有订单id)
res = BaseResponse()
user = request.user
flag_yang = request.data.keys()
if len(flag_yang) > 1: # 大于1则是从学习界面来的评价
res = self.put_func(data=request.data, res=res, user=user)
return Response(res.dict)
else: # 账单页面来的评价
order_id = list(flag_yang)[0]
order_db_obj = models.Order.objects.filter(id=order_id,
account=user).first()
if not order_db_obj:
res.error = '不存在的账单'
res.code = 1201
return Response(res.dict)
try:
data = request.data.get(order_id)
res = self.put_func(data, res, user, order_db_obj)
except Exception as e:
print(e)
res.code = 1301
res.error = '操作有误'
return Response(res.dict)
else:
return Response(res.dict)
def post(self, request):
res = BaseResponse()
# 获取前端传过来的user_id和课程
user_id = request.user.pk
course_id = request.data.get('course_id', '')
price_policy_id = request.data.get('price_policy_id', '')
course_obj = models.Course.objects.filter(id=course_id).first()
# 校验课程是否合法
if not course_obj:
res.code = 1051
res.error = '课程不存在'
return Response(res.dict)
# 校验价格策略是否合法
price_policy_queryset = course_obj.price_policy.all()
price_policy_dict = {}
for policy in price_policy_queryset:
price_policy_dict[policy.id] = {
"price": policy.price,
"valid_period": policy.valid_period,
"valid_period_display": policy.get_valid_period_display()
}
if price_policy_id not in price_policy_dict:
res.code = 1052
res.error = '价格策略不合法'
return Response(res.dict)
# 构建存到redis中的数据
key = SHOPPINGCAR_KEY % (user_id, course_id)
course_info = {
"id": course_id,
"title": course_obj.title,
"course_img": str(course_obj.course_img),
"price_policy_dict": json.dumps(price_policy_dict,
ensure_ascii=False),
"default_price_policy_id": price_policy_id
}
CONN.hmset(key, course_info)
res.data = '加入购物车成功'
return Response(res.dict)
def post(self, request):
res = BaseResponse()
homework_id = request.data.get('homework')
file = request.data.get('file')
file.name = '%s-' % request.user + file.name
user_obj = models.Student.objects.filter(
account_id=request.user.pk).first()
homework_obj = models.HomeworkDetail.objects.filter(
homework_id=homework_id, student=user_obj).first()
if not homework_obj:
res.code = 1501
res.data = '非法操作，不存在该作业'
return Response(res.dict)
homework_obj.status = 3
if homework_obj.file:
res.data = '您已上传过啦'
return Response(res.dict)
homework_obj.file = file
homework_obj.save()
res.data = '上传成功'
return Response(res.dict)
def get(self, request):
# 调用业务数据库的数据进行查看展示
"""
账单详情：
[
账单id:[{
商品名：
简介：
数量：
价格：
图片：
},
{
商品名：
简介：
数量：
价格：
图片：
}]
账单ID
创建订单时间：
下单付款时间:
流水号:
付款方式:
实付金额:
收获地址：
]
"""
res = BaseResponse()
user_trades = models.TradeRecord.objects.filter(
account=request.user).all()
user_orders = models.OrderDetail.objects.filter(
order__account=request.user).all().distinct()
# 商品数量
trade_menu = {}
product_dict = {}
for item in user_trades:
trade_menu[item.order_id] = {
'user_address': item.user_address,
'use_balance': item.amount,
'pay_date': item.date.strftime("%Y-%m-%d %H:%M:%S")
}
product_dict = {}
for item in user_orders:
product_dict[item.order_id] = {}
for item in user_orders:
product = eval(item.product)
product_dict[item.order_id]['id'] = item.order_id
product_dict[item.order_id][
'status'] = item.order.get_assess_status_display()
product_dict[item.order_id][item.object_id] = product
product_dict[item.order_id][
item.object_id]['real_price'] = item.price
for trade in trade_menu:
if trade == item.order_id:
product_dict[item.order_id]['user_address'] = str(
trade_menu[trade]['user_address'])
product_dict[item.order_id]['pay_date'] = trade_menu[
trade]['pay_date']
product_dict[item.order_id]['use_balance'] = trade_menu[
trade]['use_balance']
product_dict[
item.order_id]['transaction_number'] = item.transaction_number
product_dict[
item.order_id]['create_order_time'] = item.order.date.strftime(
"%Y-%m-%d %H:%M:%S")
product_dict[item.order_id][
'pay_time'] = item.order.pay_time.strftime("%Y-%m-%d %H:%M:%S")
res.data = product_dict
return Response(res.dict)
def post(self, request):
res = BaseResponse()
# 1、获取数据
user_id = request.user.id
balance = int(request.data.get('balance', 0))
price = int(request.data.get('price', '')) # 前端提交的打折后的价格
# 2、校验数据是否合法
# 2.1、校验贝里数是否合法
if balance > request.user.balance:
res.code = 1081
res.error = '抵扣的贝里错误'
return Response(res.dict)
# 2.2、从用户的结算中心拿数据，与数据库存放数据比对
settlement_key = SETTLEMENT_KEY % (user_id,'*')
all_keys = CNN.scan_iter(settlement_key)
course_total_price = 0
for key in all_keys:
settlement_info = CNN.hgetall(key)
course_id = settlement_info['id']
course_obj = models.Course.objects.filter(id=course_id).first()
# 课程id是否合法
if not course_obj and course_obj.status == 0:
res.code = 1082
res.error = '课程id不合法'
return Response(res.dict)
# 优惠券是否过期
course_coupon_id = settlement_info.get('default_course_coupon_id', 0)
course_coupon_dict = None
if course_coupon_id:
course_coupon_dict = models.Coupon.objects.filter(
id=course_coupon_id,
couponrecord__status=0,
couponrecord__account_id=user_id,
object_id = course_id,
valid_begin_date__lte=now(),
valid_end_date__gte=now(),
).values('coupon_type', 'money_equivalent_value', 'off_percent', 'minimum_consume')
if not course_coupon_dict:
res.code = 1083
res.error = '课程优惠券不合法'
return Response(res.dict)
course_price = int(settlement_info['price'])
course_rebate_price = self.account_price(course_coupon_dict, 0)
if course_rebate_price == -1:
res.code = 1085
res.error = '课程优惠券不合法'
return Response(res.dict)
course_total_price += course_price
# 校验全局优惠券
global_coupon_key = GLOBAL_COUPON_KEY % user_id
global_coupon_info = CNN.hgetall(global_coupon_key)
global_coupon_id = int(global_coupon_info.get('default_global_coupon_id'))
if global_coupon_id:
global_coupon_dict = models.Coupon.objects.filter(
id=global_coupon_id,
couponrecord__status=0,
couponrecord__account_id=user_id,
valid_begin_date__lte=now(),
valid_end_date__gte=now(),
).values('coupon_type', 'money_equivalent_value', 'off_percent', 'minimum_consume')
if not global_coupon_dict:
res.code = 1086
res.error = '全局优惠券不合法'
return Response(res.dict)
course_rebate_price = self.account_price(global_coupon_dict, course_total_price)
if course_rebate_price == -1:
res.code = 1087
res.error = '全局优惠券不合法'
return Response(res.dict)
course_total_price += course_rebate_price
# 计算贝里折扣
balance_money = balance / 100
course_total_price -= balance_money
# 2.3、校验价格是否合法
if price != course_total_price:
res.code = 1088
res.error = '价格不合法'
return Response(res.dict)
# 3、调用支付接口支付
# 4、支付成功后修改数据库中用户信息
res.data = '支付成功'
return Response(res.dict)
def put(self, request):
"""设置订单中商品的优惠券"""
res = BaseResponse()
# 获取前端传来的数据
# {"course_id1":{'course':xx,'coupon':xx},"course_id2":{'course':xx,'coupon':xx},global_coupon:''}
# 例：{'1': {'course': 1, 'coupon': 5}, '4': {'course': 4, 'coupon': 2}, 'global_coupon': 4}
global_coupon_id = request.data.get('global_coupon')
request_data = dict(request.data)
courses = []
for value in request_data.values():
if isinstance(value, dict):
courses.append(value)
for course_coupon in courses:
course_id = course_coupon.get('course')
course_coupon_id = course_coupon.get('coupon')
user_id = request.user.pk
key = SETTLEMENT_KEY % (user_id, course_id) # 订单数据
global_key = GLOBAL_COUPON_KEY % user_id
# 验证数据合法
if course_id:
if not CONN.exists(key):
res.code = 1080
res.error = '课程id不合法'
return Response(res.dict)
if course_coupon_id:
user_coupon_dict = json.loads(
CONN.hget(key, 'course_coupon_dict'))
# 先加入结算中心之后又领取优惠券，并选择优惠券购买的情况
if user_coupon_dict == {}:
user_coupon_dicts, user_global_coupon_dict = self.put_func(
user_id, course_id)
CONN.hset(
key, 'course_coupon_dict',
json.dumps(user_coupon_dicts, ensure_ascii=False))
user_coupon_dict = user_coupon_dicts
if user_global_coupon_dict:
user_global_coupons = GLOBAL_COUPON_KEY % user_id
# 多套了一层，不然redis报错，不能内层直接套一个字典
global_settlement_info = {
'global_course_coupon_dict':
json.dumps(user_global_coupon_dict,
ensure_ascii=False)
}
CONN.hmset(user_global_coupons, global_settlement_info)
if str(course_coupon_id) not in user_coupon_dict:
res.code = 1081
res.error = '课程优惠券id不合法'
return Response(res.dict)
CONN.hset(key, 'default_coupon_id', course_coupon_id)
if global_coupon_id:
if not CONN.exists(global_key):
res.code = 1082
res.error = '全局优惠券id不合法'
return Response(res.dict)
CONN.hset(global_key, 'default_global_coupon_id',
global_coupon_id)
res.data = '已选择优惠券'
return Response(res.dict)
def post(self, request):
"""支付"""
res = BaseResponse()
# 获取前端传来的数据
# {"balance": 20, "price": 73.1}
balance = request.data.get('balance')
price = request.data.get('price')
user = request.user
if balance and int(balance) > request.user.balance:
res.code = 1100
res.error = '抵扣贝里失败，贝里余额不足'
return Response(res.dict)
if price and isinstance(price, str):
price = eval(price)
# 购买有两种情况，一种直接购买，一种是添加购物车之后购买，已处理好此情况
user_key = SETTLEMENT_KEY % (user.id, "*")
user_settlements = CONN.scan_iter(user_key)
total_price = 0
# user_coupon_dict = {} # 专项优惠券
# global_coupon_dict = {} # 全局优惠券
global_coupon_key = None
for item in user_settlements:
settlement_info = CONN.hgetall(item)
course_id = str(settlement_info['id'])
# 检验课程合法性
course_obj = models.Course.objects.filter(id=course_id).first()
if not course_obj and course_obj.state == 2: # 状态2表示课程下架
res.code = 1101
res.error = '课程id不正确，可能已下架'
return Response(res.dict)
course_coupon_id = int(settlement_info.get('default_coupon_id', 0))
# 有优惠券，检验课程优惠券有效期
# 这里有四个情况：
# 1.当前用户本来就没有领取专项优惠券
# 2.当前用户有专项优惠券但和redis里的数据不匹配
# 2.当前用户有专项优惠券但并没有勾选使用优惠券
# 3.正常使用专项优惠券
if course_coupon_id:
user_coupon_dict = models.Coupon.objects.filter(
id=course_coupon_id,
object_id=course_id,
start_time__lte=now(),
end_time__gte=now(),
coupondetail__account=user,
coupondetail__status=0).exclude(coupon_type=0).values(
'coupon_type', 'equal_money', 'off_percent',
'minimum_consume').all().distinct()
# 优惠券已使用
# 有勾选优惠券，但没有数据库内没有
if course_coupon_id and not user_coupon_dict:
res.code = 1102
res.error = '优惠券id不合法'
return Response(res.dict)
course_db_price = settlement_info['price']
course_count_price = self.counts(user_coupon_dict,
course_db_price)
if course_count_price == -1:
res.code = 1103
res.error = '优惠券不符合使用要求'
return Response(res.dict)
total_price += course_count_price
# 没有优惠券的情况
else:
total_price += float(settlement_info['price'])
# 全局优惠券
# 有三个情况：
# 1.当前用户本来就没有领取全局优惠券
# 2.当前用户有全局优惠券但和redis里的数据不匹配
# 3.正常使用优惠券
# 判断用户是否有优惠券
user_global_coupon = models.CouponDetail.objects.filter(
account_id=user.id, coupon__coupon_type=0, status=0).all()
# 有全局优惠券，检查优惠券使用场景合法性
if user_global_coupon:
global_coupon_key = GLOBAL_COUPON_KEY % user.id
# 当前用户有全局优惠券但和redis里的数据不匹配，优惠券不可用，价格默认为之前的值
if not CONN.exists(global_coupon_key):
# 报一个警告
res.code = 1104
res.error = '全局优惠券当前不可用'
global_count_price = total_price
# return Response(res.dict)
global_coupon_id = CONN.hget(global_coupon_key,
'default_global_coupon_id')
if global_coupon_id:
global_coupon_dict = models.Coupon.objects.filter(
id=global_coupon_id,
start_time__lte=now(),
end_time__gte=now(),
coupondetail__account_id=user.id,
coupondetail__status=0).values('coupon_type',
'equal_money',
'off_percent',
'minimum_consume')
if not global_coupon_dict:
res.code = 1105
res.error = '全局优惠券不合法'
return Response(res.dict)
global_count_price = self.counts(global_coupon_dict,
total_price)
if global_count_price == -1:
res.code = 1106
res.error = '全局优惠券不符合使用要求'
return Response(res.dict)
# 没有全局优惠券,最后的价格就是前面的专项优惠券打折之后的值
else:
global_count_price = total_price
# 抵扣账户余额金币，按平台换算比例，1:100
balance_equivalent = balance / 100 # balance是前端传来的数据
total_price = global_count_price - balance_equivalent
if total_price < 0:
total_price = 0
total_price = float('%.2f' % total_price)
# 最后的检验
if price != total_price: # price是前端传来的总价格
""" 有个小问题,需要先领券再加入购物车才能使用优惠券，不然就会走这里"""
print(total_price, type(total_price))
print(price, type(price))
# 说明前端传来的数据不正确
res.code = 1107
res.error = '操作失败，数据可能被篡改'
return Response(res.dict)
# 调用支付接口
res.data = '付款成功'
# ########## 更新业务数据库里的数据 #############
# 删掉redis结算中心里的数据
# 这里又要再取一次才能删除
user_key = SETTLEMENT_KEY % (user.id, "*")
user_settlements = CONN.scan_iter(user_key)
# 把课程数据从redis里删除并存入交易表中
product = []
for item in user_settlements:
product.append(CONN.hgetall(item))
CONN.delete(item)
if global_coupon_key:
CONN.delete(global_coupon_key) # 此处不用判断是否有优惠券，redis删除，如果没有值不会报错
# 更新数据库信息
user_obj = models.Account.objects.filter(id=user.id)
user_obj.update(balance=F('balance') - balance)
# 修改优惠券使用状态
models.CouponDetail.objects.filter(
account_id=user.id, coupon__coupon_type=0).update(status=1)
# 修改优惠券使用状态
models.CouponDetail.objects.filter(
account_id=user.id,
coupon__coupon_type__in=[1, 2]).update(status=1, use_time=now())
# 用余额交易
models.TradeRecord.objects.create(
account_id=user.id,
amount=balance,
balance=user_obj.first().balance,
)
# 用其他方式交易
# 获取交易类型
order_obj = models.Order.objects.create(payment_type=0,
account_id=user.id,
payment_amount=total_price,
status=0,
pay_time=now())
# 买了课程就是申请状态的学生了,如果已经买过课程的学生直接查询获取
student_obj = models.Student.objects.filter(
account=user_obj.first()).first()
if not student_obj:
student_obj = models.Student.objects.create(
account=user_obj.first())
for item in product:
pay_course_obj = models.Course.objects.filter(
id=item['id']).first()
# 加入到缴费申请表
models.PaymentRecord.objects.create(account=user_obj.first(),
paid_fee=total_price,
course=pay_course_obj)
# 购买的用户信息链接到学生表里
student_obj.courses.add(pay_course_obj)
course_coupon_dict = json.loads(item['course_coupon_dict'])
price = float('%.2f' % float(item['price'])) # 不失真的转为浮点型数据，并取两位小数
"""这里会创建多条重复数据"""
# 如果有优惠券
if len(course_coupon_dict) != 0:
for key, value in course_coupon_dict.items():
real_price = price - value['equal_money']
models.OrderDetail.objects.create(
order=order_obj,
original_price=item['price'],
price=real_price,
transaction_type=1,
transaction_number='pay' + str(time.time()),
valid_period=item['valid_period'],
content_object=pay_course_obj,
product=item)
# 没有优惠券
else:
models.OrderDetail.objects.create(
order=order_obj,
original_price=item['price'],
price=price,
transaction_type=1,
transaction_number='pay' + str(time.time()),
valid_period=item['valid_period'],
content_object=pay_course_obj,
product=item)
return Response(res.dict)