广告小程序后端开发，17.优惠券系统：获取未兑付未过期的我的奖品，获取优惠券参数和兑付优惠券？
1.获取未兑付未过期的我的奖品
1.在apps/user_operation/views.py中新建GeMyPrize：
class GeMyPrize(APIView):
"""
获取我的奖品
"""
renderer_classes = [JSONRenderer] # 渲染器
def get(self,request):
token = request.GET.get(\'token\')
user = UserProfile.objects.filter(token=token).first()
if user:
p_list=GetPrize.objects.filter(user=user,end_time__gt=datetime.now(),status=\'0\').order_by(\'-add_time\')
p=GetPrizeModelSerializer(p_list,many=True)
return Response(p.data)
else:
return HttpResponse(\'参数不足\')2.在apps/user_operation/urls.py内配置路由：
from django.urls import path
from .views import GetMessage,ReadMessage,DelMessage,BuyUseJiFen,GeMyPrize
urlpatterns = [
path(\'getmessage/\',GetMessage.as_view()),
path(\'readmessage/\',ReadMessage.as_view()),
path(\'delmessage/\',DelMessage.as_view()),
path(\'buyusejifen/\',BuyUseJiFen.as_view()),
path(\'getmyprize/\',GeMyPrize.as_view()),
]2.获取优惠券参数和兑付优惠券
1.简单原理：
扫码操作于普通小程序端，而要直接操作广告小程序的数据库必须要在广告小程序端，所以需要用两个视图类进行对接配合，其中两个视图类的get负责获取优惠券参数的功能实现，post则负责兑付优惠券的功能实现。
2.在apps/user_operation/models.py中新建属于普通小程序段的兑付表PayPrize:
class PayPrize(models.Model):
"""奖品兑付表小程序端"""
admin_user=models.CharField(max_length=20,verbose_name=\'职工微信名\',null=True,blank=True)
user = models.CharField(max_length=20, verbose_name=\'微信用户名\', null=True, blank=True)
prize_title = models.CharField(max_length=20, verbose_name=\'奖券名\', null=True, blank=True)
add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")
class Meta:
verbose_name = "小程序端兑付表"
verbose_name_plural = verbose_name
def __str__(self):
return self.prize_title执行数据更新命令：
python manage.py makemigrations python manage.py migrate
3.在apps/user_operation/adminx.py内注册：
class PayPrizeAdmin(object):
list_display = ["admin_user","user","prize_title","add_time"]
list_filter = ["admin_user","user","prize_title","add_time"]
xadmin.site.register(PayPrize, PayPrizeAdmin)4.在apps/user_operation/views.py中新建类CheckingPirze，EditGetPrize：
class CheckingPirze(APIView):
"""扫码访问小程序验证"""
renderer_classes = [JSONRenderer] # 渲染器
def get(self,request):
token = request.GET.get(\'token\')
# 扫码者
admin_user = UserProfile.objects.filter(token=token).first()
openid = request.GET.get(\'oid\')
user = UserProfile.objects.filter(open_id=openid).first()
prizepid\')
if user and prizeid and admin_user.is_staff:
# 扫码者必须是员工才可以往下走
res = urllib.request.urlopen(PRIZEURL+"?open&prizeid="+prizeid)
# print(\'1\',res)
# print(\'查询结果\',type(res.read().decode("utf-8")))
obj = json.loads(res.read().decode("utf-8"))
# print(\'obj\',obj)
re_user=UserProfileModelSerializer(user)
return Response(data=({\'getprize\':obj,\'user\':re_user.data}))
else:
return HttpResponse(\'参数不足\')
def post(self,request):
token = request.POST.get(\'token\')
# 扫码者
admin_user = UserProfile.objects.filter(token=token).first()
getprizegetprizeid\')
if getprizeid and admin_user.is_staff:
# 扫码者必须是员工才可以往下走
data_dict = {"gid":getprizeid}
data_string = urllib.parse.urlencode(data_dict)
last_data = bytes(data_string, encoding=\'utf-8\')
res = urllib.request.urlopen(PRIZEURL,data=last_data)
st=res.read().decode("utf-8")
dict_st=eval(st)
# print(\'res:\',dict_st)
# if res.read().decode("utf-8")=="200":
# print(\'code:\',type(dict_st["code"]))
if dict_st["code"]==\'200\':
# print(\'username\',dict_st["user"])
# print(\'title\', dict_st["title"])
pay_prize=PayPrize()
pay_prize.admin_user=admin_user.nickName
pay_prize.user=dict_st["user"]
pay_prize.prize_title=dict_st["title"]
pay_prize.save()
return HttpResponse(dict_st["code"])
else:
return HttpResponse(\'参数不足\')
class EditGetPrize(APIView):
"""get查询，post修改"""
renderer_classes = [JSONRenderer] # 渲染器
def get(self, request):
openid = request.GET.get(\'openid\')
user = UserProfile.objects.filter(open_id=openid).first()
prizeid = request.GET.get(\'prizeid\')
if user and prizeid:
prizeid=int(prizeid)
prize = Prize.objects.filter(id=prizeid).first()
p=GetPrize.objects.filter(user=user,prize=prize).first()
re_p=GetPrizeModelSerializer(p)
if p:
return Response(re_p.data)
else:
#查无领取记录
return HttpResponse(\'404\')
else:
return HttpResponse(\'参数不足\')
def post(self, request):
get_pgid\')
if get_pid:
get_pid=int(get_pid)
# print(\'getid\',get_pid)
pr=GetPrize.objects.filter(id=get_pid,end_time__gt=datetime.now()).first()
if pr:
if pr.status==\'1\':
# 已经兑付过的了
re={\'code\': \'405\', \'msg\': \'此奖品已经兑付过\'}
return Response(data=re)
else:
pr.status = \'1\'
pr.save()
user = pr.user
title = pr.title
msg = Message()
msg.user = user
msg.content = "您成功使用了积分奖券：" + title
msg.save()
# print(\'新消息\',msg.content)
re = {\'code\': \'200\', \'msg\': \'兑奖成功\',\'title\':title,\'user\':user.nickName}
return Response(data=re)
else:
# 奖品已过期
re = {\'code\': \'404\', \'msg\': \'此奖品不存在或已过期\'}
return Response(data=re)
else:
re = {\'code\': \'403\', \'msg\': \'参数不足\'}
return Response(data=re)5.在apps/user_operation/urls.py内配置路由：
from django.urls import path
from .views import GetMessage,ReadMessage,DelMessage,BuyUseJiFen,CheckingPirze,EditGetPrize,GeMyPrize
urlpatterns = [
path(\'getmessage/\',GetMessage.as_view()),
path(\'readmessage/\',ReadMessage.as_view()),
path(\'delmessage/\',DelMessage.as_view()),
path(\'buyusejifen/\',BuyUseJiFen.as_view()),
path(\'checkingprize/\',CheckingPirze.as_view()),
path(\'editgetprize/\',EditGetPrize.as_view()),
path(\'getmyprize/\',GeMyPrize.as_view()),
]6.在settings.py中配置：
# 广告平台兑奖url PRIZEURL=\'http://127.0.0.1:8000/useroperation/editgetprize/\'