#商品评论分页接口
class ContentList(APIView):

def get(self,request):

# 当前页
page = int(request.GET.get('page',1))
# 一页有几条数据
size = int(request.GET.get('size',1))
# 获取商品id
gid = int(request.GET.get('gid',1))

# 定义从哪开始切片
data_start = (page-1) * size

# 定义在哪里结束切片
data_end = page * size

# 查询数据
contentlist = Comment.objects.filter(gid=gid).order_by('-id')[data_start:data_end]
# 查询总数据量
count = Comment.objects.count()

# 序列化操作
content_ser = CommentSer(contentlist,many=True)
return Response({
'total':count,
'data' :content_ser.data,
})