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Django Rest Framework Pagination
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# Copyright (c) 2017 Tiago Silva <https://github.com/tarsil> | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining a copy | |
# of this software and associated documentation files (the "Software"), to deal | |
# in the Software without restriction, including without limitation the rights | |
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
# copies of the Software, and to permit persons to whom the Software is | |
# furnished to do so, subject to the following conditions: | |
# | |
# The above copyright notice and this permission notice shall be included in | |
# all copies or substantial portions of the Software. | |
# | |
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
# THE SOFTWARE. | |
from rest_framework import pagination | |
from rest_framework.response import Response | |
class Pagination(pagination.PageNumberPagination): | |
""" | |
Custom paginator for REST API responses | |
'links': { | |
'next': next page url, | |
'previous': previous page url | |
}, | |
'count': number of records fetched, | |
'total_pages': total number of pages, | |
'next': bool has next page, | |
'previous': bool has previous page, | |
'results': result set | |
}) | |
""" | |
def get_paginated_response(self, data): | |
return Response({ | |
'links': { | |
'next': self.get_next_link(), | |
'previous': self.get_previous_link() | |
}, | |
'pagination': { | |
'previous_page': self.page.number - 1 if self.page.number != 1 else None, | |
'current_page': self.page.number, | |
'next_page': self.page.number + 1 if self.page.has_next() else None, | |
'page_size': self.page_size | |
}, | |
'count': self.page.paginator.count, | |
'total_pages': self.page.paginator.num_pages, | |
'next': self.page.has_next(), | |
'previous': self.page.has_previous(), | |
'results': data | |
}) | |
class SimplePagination(pagination.PageNumberPagination): | |
""" | |
Custom paginator for REST API responses | |
""" | |
def get_paginated_response(self, data): | |
return Response({ | |
'records_filtered': self.page.paginator.count, | |
'data': data | |
}) |
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