def post(self, request):
response = MyResponse()
# 传入的参数 {"price":600",beli":100}
price_in = request.data.get('price')
beli = request.data.get('beli')
try:
# 1 从支付中心拿出字典,全局优惠券字典取出来
payment_dic = json.loads(
self.conn.get('payment_%s' % request.user.pk))
global_coupon = json.loads(
self.conn.get('global_coupon_%s' % request.user.pk))
# 定义一个用于存储所有课程价格的列表
price_list = []
# 2 循环结算中心字典
for course_id, course in payment_dic.items():
# 取出默认价格策略，取出默认价格，取出默认优惠券id
default_policy_id = course['default_policy']
default_price = course['policy'][default_policy_id]['price']
default_coupon_id = course['default_coupon']
if default_coupon_id != 0:
# 如果不等于0,表示使用了优惠券
coupon_dic = course['coupon'][str(default_coupon_id)]
default_price = self.account(default_price, coupon_dic)
# 注意要在if外面往里添加
price_list.append(default_price)
# 3 取出使用的全局优惠券id和字典
default_coupon_id = global_coupon['default_coupon']
final_price = sum(price_list)
if default_coupon_id != 0:
# 使用了优惠券
global_coupon_dic = global_coupon['coupon'][str(
default_coupon_id)]
final_price = self.account(sum(price_list), global_coupon_dic)
# 4 判断传入的贝利数是否合法
if beli > request.user.beli:
raise CommonException(104, '传入的贝利数有问题')
final_price = final_price - beli / 10
# 修改贝利数
request.user.beli = request.user.beli - beli
request.user.save()
if final_price < 0:
final_price = 0
if final_price != price_in:
raise CommonException(105, '您传入的价格不合法')
if not final_price == 0:
#构造阿里支付
pass
response.url = '阿里支付的地址'
except CommonException as e:
response.msg = e.msg
response.status = e.status
except Exception as e:
response.msg = str(e)
# 项目上线,用下面这个
# response.msg = '您的操作有误'
response.status = 109
return Response(response.get_data)
def get(self, request):
response = MyResponse()
response.payment = json.loads(self.conn.get('payment_%s' % request.user.pk))
response.global_coupon = json.loads(self.conn.get('global_coupon_%s' % request.user.pk))
response.msg = '查询成功'
response.beli=request.user.beli
return Response(response.get_data)
def get(self, request, pk):
response = MyResponse()
# pk 是课程的id,查询的是课程详情表******
try:
course_detail = models.CourseDetail.objects.get(course_id=pk)
coursedetailser = MySer.CourseDetailSer(instance=course_detail,
many=False)
response.data = coursedetailser.data
except ObjectDoesNotExist as e:
response.msg = '该课程不存在'
response.status = 101
except Exception as e:
response.msg = str(e)
response.status = 105
return Response(response.get_data)
def post(self, request):
response = MyResponse()
# 传入的数据{"course_id":"1","policy_id":"1"}
course_id = request.data.get('course_id')
policy_id = request.data.get('policy_id')
try:
# 1 校验课程是否存在
course = models.Course.objects.get(pk=course_id)
# 2 取出所有价格策略
policy_price_list = course.price_policy.all()
# 3 取出redis中的购物车数据
# 购物车数据的key值 shopping_cart_用户id
# 因为有了认证组件,所以request.user就是当前登录用户
shopping_cart_bytes = self.conn.get('shopping_cart_%s' %
request.user.pk)
shopping_cart_dic = json.loads(
shopping_cart_bytes) if shopping_cart_bytes else {}
# 跟上面一样
# if shopping_cart_bytes:
# shopping_cart_dic=json.loads(shopping_cart_bytes)
# else:
# shopping_cart_dic={}
# 4 用于存放所有价格策略的字典,循环所有的价格策略
policy = {}
for policy_price in policy_price_list:
policy[str(policy_price.pk)] = {
'period': policy_price.valid_period,
# 取出价格周期的文字
'period_display': policy_price.get_valid_period_display(),
'price': policy_price.price
}
if policy_id not in policy:
# 5 传入的价格策略不合法,不在该课程的所有价格策略中
raise CommonException(102, '价格策略不合法,你是爬虫')
# 6 判断当前传入的课程id是否在购物车中,在则更新
if course_id in shopping_cart_dic:
shopping_cart_dic[course_id]['default_policy'] = policy_id
response.msg = '更新购物车成功'
else:
shopping_cart_dic[course_id] = {
'title': course.name,
'img': course.course_img,
# 默认价格策略,是传入的价格策略id
'default_policy': policy_id,
'policy': policy
}
response.msg = '添加购物车成功'
# 7 把字典转成字符串,存入redis
self.conn.set('shopping_cart_%s' % request.user.pk,
json.dumps(shopping_cart_dic))
except ObjectDoesNotExist as e:
response.msg = '该课程不存在,你可能是爬虫'
response.status = 101
except CommonException as e:
response.msg = e.msg
response.status = e.status
except Exception as e:
response.msg = str(e)
# 项目上线,用下面这个
# response.msg = '您的操作有误'
response.status = 109
return Response(response.get_data)
def post(self, request):
response = MyResponse()
# 传入的数据{"course_list":[{"course_id":"1","policy_id":"1"},{"course_id":"2","policy_id":"2"}]}
course_list = request.data.get('course_list')
try:
# 1定义结算中心的字典，定义全局优惠券的字典
payment_dic = {}
global_coupon_dic = {
'coupon': {},
'default_coupon': 0
}
# 2 取出购物车的数据
shopping_cart_bytes = self.conn.get('shopping_cart_%s' % request.user.pk)
shopping_cart_dic = json.loads(shopping_cart_bytes) if shopping_cart_bytes else {}
# 3 循环传入的course_list值
for course_id_dic in course_list:
course_in_id = course_id_dic['course_id']
if course_in_id not in shopping_cart_dic:
# 传入的数据不合法,要结算的课程不在购物车中
raise CommonException(102, '要结算的课程不在购物车中')
# 4 构造出单个课程详情字典
course_detail = {
'coupon': {},
'default_coupon':0
}
course_detail.update(shopping_cart_dic[course_in_id])
# 5 把该课程详情添加到结算中心字典中
payment_dic[course_in_id] = course_detail
# 6 查询出所有优惠券,包括全站优惠券和课程优惠券(当前用户,未使用,当前在有效期内)
# 取出当前时间,有效优惠券时间:优惠券开始时间小于当前时间,优惠券结束时间,大于当前时间
ctime = datetime.datetime.now()
coupon_list = models.CouponRecord.objects.filter(user=request.user,
status=0,
coupon__valid_begin_date__lte=ctime,
coupon__valid_end_date__gte=ctime
)
# 7 循环所有优惠券
for coupon in coupon_list:
# 取出该优惠券类型,转str
coupon_type = str(coupon.coupon.coupon_type)
# 构造出单个优惠券详情的字典
coupon_detail = {
'coupon_display': coupon.coupon.get_coupon_type_display(),
'coupon_type': coupon_type
}
# 取出优惠券id,课程id
coupon_id = str(coupon.pk)
coupon_course_id = coupon.coupon.object_id
# 8 根据优惠券类型,继续往单个优惠券字典中添加字段
if coupon_type == '0':
coupon_detail['money_equivalent_value'] = coupon.coupon.money_equivalent_value
elif coupon_type == '1':
coupon_detail['money_equivalent_value'] = coupon.coupon.money_equivalent_value
coupon_detail['minimum_consume'] = coupon.coupon.minimum_consume
else:
coupon_detail['off_percent'] = coupon.coupon.off_percent
# 9 判断是全站优惠券还是课程优惠券
if not coupon_course_id:
# 全局优惠券
global_coupon_dic['coupon'][coupon_id] = coupon_detail
else:
# 课程优惠券(大坑)
# coupon_course_id 是当前优惠券对应的课程id,但是该课程不一定在结算中心中
if str(coupon_course_id) not in payment_dic:
continue
payment_dic[str(coupon_course_id)]['coupon'][coupon_id] = coupon_detail
# 10 把结算中心字典,和全局优惠券字典放到redis中
self.conn.set('payment_%s' % request.user.pk, json.dumps(payment_dic))
self.conn.set('global_coupon_%s' % request.user.pk, json.dumps(global_coupon_dic))
response.msg = '加入结算中心成功'
except ObjectDoesNotExist as e:
response.msg = '该课程不存在,你可能是爬虫'
response.status = 101
except CommonException as e:
response.msg = e.msg
response.status = e.status
except Exception as e:
response.msg = str(e)
# 项目上线,用下面这个
# response.msg = '您的操作有误'
response.status = 109
return Response(response.get_data)