django-redis 和 vue 实现的购物车

• 安装模块

  • pip install django-redis

• 后端代码

  # 购物车
  class CartView(APIView):
      # 初始化函数
      def __init__(self):
          self.conn = get_redis_connection('default')
  
      # 获取购物车信息
      def get(self,request):
          # 读取数据
          uid = request.GET.get('id')
          key = 'cart_{}'.format(uid)  # cart_1
          tmp = self.conn.hgetall(key)  # {b'a9':b'20',b'a10':b'13'}
          if not tmp:
              return Response({
                  "status":201,
                  "msg":"购物车为空"
              })
          data = {k.decode('utf-8')[1:]:v.decode('utf-8') for k,v in tmp.items()}
          #　如何获取商品Ｉｄ
          goods = models.Goods.objects.filter(id__in=data).all()
          data_list = []
          datax = {k.decode('utf-8'): v.decode('utf-8') for k, v in tmp.items()} # {'a10': '13', 'a9': '20'}
          for good in goods:
              gid = good.id
              info = {"id":gid,"name":good.name,"store":good.store,"price":float(good.price),"img":good.img,"count":datax.get('a'+str(gid))}
              data_list.append(info)
          return Response({
              "status":200,
              "msg": "",
              "data":data_list
          })
      # 添加购物车信息
      def post(self,request):
          data = request.data
          uid = data.get('uid','')
          gid = 'a'+ str(data.get('gid','0'))
          count = data.get('count',0)
          # 存入redis
          key = 'cart_'+ str(uid)
          self.conn.hset(key,gid,count)
          return Response({
              "msg":"已设置"
          })
  
    # 删除购物车信息
      def delete(self,request):
          uid = request.data.get('uid',"0")
          gid = request.data.get('gid',"0")
          key = 'cart_{}'.format(uid)
          field = 'a{}'.format(gid)
          tmp = self.conn.hdel(key,field)
          print(tmp)
          return Response({
              "msg":""
          })

• 前端