cnas/server/utils/pagination.py

16 lines
704 B
Python

from rest_framework.pagination import PageNumberPagination
from rest_framework.exceptions import ParseError
class MyPagination(PageNumberPagination):
page_size = 10
page_size_query_param = 'page_size'
class PageOrNot:
def paginate_queryset(self, queryset):
if (self.paginator is None):
return None
elif self.request.query_params.get('pageoff', None) and self.get_queryset().count()<500:
return None
elif self.request.query_params.get('pageoff', None) and self.get_queryset().count()>=500:
return ParseError('单次请求数据量大,请求中止')
return self.paginator.paginate_queryset(queryset, self.request, view=self)