django rest framework filter

Ask Time：2014-01-27T14:21:18 Author：user3236034

I'm working with API made from Django rest framework, I am trying to make a filter to a JSON This is my serializers.py file

from rest_framework import serializers
from .models import Establecimiento,Categoria,Ciudad,Zona
import django_filters

class EstablecimientoSerializer(serializers.ModelSerializer):
    class Meta:
        model = Establecimiento
        depth = 1

        fields =  ('nombre',
                   'ciudad',
                   'categoria',
                   'direccion',
                   'telefono',
                   'precioMinimo',
                   'precioMaximo',)

and this my views.py file

from rest_framework import viewsets
from .serializers import EstablecimientoSerializer, CategoriaSerializer
from models import *
from rest_framework import filters
from rest_framework import generics

class EstablecimientoViewSet(viewsets.ModelViewSet):
    queryset = Establecimiento.objects.all()
    serializer_class = EstablecimientoSerializer
    filter_fields = ('categoria',)

Then in the EstablecimientoViewSet class, I put a filter_fields = ('categoria',) to filter the url's API with the category field

If I add the filter to the query parameters, the result set does not change, it shows all data unfiltered.

...establecimiento?establecimiento=bar

How can I make this filter about this model?

Author:user3236034，eproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/21374253/django-rest-framework-filter

mariodev :

You need to define filter backend and all related fields you're planning to filter on:\n\nclass EstablecimientoViewSet(viewsets.ModelViewSet):\n filter_backends = (filters.DjangoFilterBackend,)\n filter_fields = ('categoria', 'categoria__titulo',)\n\n\nexample:\n\nURL?categoria__titulo=Categoria 1\n",

2014-01-27T08:56:02

DmitrySemenov :

it's also possible to supply your own Filter class, which may give you more options and flexibility\n\nimport sys, django_filters, json, io\n\nclass TaskFilter(django_filters.FilterSet):\n tag = django_filters.CharFilter(name='tags__name', lookup_type='iexact')\n university = django_filters.NumberFilter(name='poster__university', lookup_type='exact')\n\n class Meta:\n model = Task\n fields = {\n 'poster': ['exact'],\n 'tasker': ['exact'],\n 'status': ['exact'],\n 'created': ['lt', 'gt']\n }\n\n\nIn this example I got filters\n\n\nposter = 1 \ntasker = 115 \nstatus = O \ncreated__lt=2015-09-22\n17:39:01.184681 (so I can filter datetime by values LESS THEN)\ncreated__gt=2015-09-22 17:39:01.184681 (or GREATER THAN provided\nvalue)\n\n\nAlso I can hide foreign fields with custom filter fields, in this case it's tag & university. Plus I can provide comparison operator (lookup_type)\n\nSample request:\n\nGET /api/v1/tasks/?offset=0&status=O&limit=100&university=1&ordering=-created&created__lt=2015-09-22 17:39:01.184681&tag=sport HTTP/1.1\nHost: domain.com\nContent-Type: application/json\nAuthorization: token 61cbd3c7c2656d4e24edb31f5923a86910c67b7c\nUser-Timezone: US/Pacific\nCache-Control: no-cache\n",

2015-09-29T01:39:20

django rest framework filter