drf-replace-ordering-filter

drf-replace-ordering-filter

Django Rest Framework OrderingFilter backend to replace field name in ordering params.

This package is useful if you have custom hidden fields in you model to help with a better ordering.

Usage

You can user ReplaceFieldOrderingFilter as a Default Filter Backend in Rest Framework setting or specifying in a certain APIView.

ReplaceFieldOrderingFilter works in the same way as rest_framework.filters.OrderingFilter, if you do not define fields in a View to be replaced.

1. As a default setting

First of all, add ReplaceFieldOrderingFilter to DEFAULT_FILTER_BACKENDS in setting.py file of your Django's project.

REST_FRAMEWORK = {
  'DEFAULT_FILTER_BACKENDS': (
    'drf_replace_ordering_filter.filters.ReplaceFieldOrderingFilter',
  )
}

Lastly, in a view that you want to change some ordering filed to another, add the following attribute.

from rest_framework import views


class MyAPIView(views.APIView):
  replace_ordering_fields = {
    'field_to_be_replaced': 'new_field'
  }

  def get(self, request, *args, **kwargs):
    pass

2. In a specific view

The second option is using ReplaceFieldOrderingFilter only in a specfic view or viewset.

For example:

from drf_replace_ordering_filter.filters import ReplaceFieldOrderingFilter
from rest_framework import views


class MyAPIView(views.APIView):
  filter_backends = (ReplaceFieldOrderingFilter,)
  replace_ordering_fields = {
    'field_to_be_replaced': 'new_field'
  }

  def get(self, request, *args, **kwargs):
    pass