[PYTHON] When you want to filter with Django REST framework

I'm currently creating an API with the Django REST framework. I am creating it while studying every day, so I will write it here so that I do not forget it.

■ What you want to do When hitting the field specified by Foreign Key in model with URL, I want to get it by specifying the value instead of the ID number!

Below is the result of Rest that is returned when you hit the URL.

python

URL:http://127.0.0.1:8000/my_names
{
    "count": 1, 
    "next": null, 
    "previous": null, 
    "results": [
        {
            "my_name": "noge", 
        }
    ]
}

URL:http://127.0.0.1:8000/my_name_rules

{
    "count": 1, 
    "next": null, 
    "previous": null, 
    "results": [
        {
            "my_name": "1", 
            "my_name_rule": "noge is rule.", 
        }
    ]
}

Example of what you want to do) http://127.0.0.1:8000/my_name_rule/1 <-not '1' I want to get it with http://127.0.0.1:8000/my_name_rule/noge <-'noge'

models.py

from django.db import models 

class MyName(models.Model):
    my_name = models.CharField(max_length=255, unique=True)

    def __unicode__(self):
        return self.my_name       

    class Meta(object):
        db_table = 'my_name'      


class MyNameRule(models.Model):
    my_name = models.ForeignKey(MyName)
    my_name_rule = models.CharField(max_length=255)
                                                                                                                                                                                                                                                                              
    def __unicode__(self):
        return self.my_name_rule       

    class Meta(object):
        db_table = 'my_name_rule'     

serializers.py

from rest_framework import serializers
from noge.apps.noge.models import MyName
from noge.apps.noge.models import MyNameRule

class MyNameRuleSerializer(serializers.ModelSerializer):

    class Meta(object):
        model = MyNameRule
        fields = ('my_name', 'my_name_rule')

class MyNameSerializer(serializers.ModelSerializer):

    class Meta(object):
        model = MyName
        fields = ('my_name')  

views.py

from rest_framework import viewsets
from rest_framework import generics
from rest_framework.permissions import IsAuthenticated
from noge.apps.noge.models import MyName
from noge.apps.noge.models import MyNameRule
from noge.apps.noge.serializers import MyNameSerializer
from noge.apps.noge.serializers import MyNameRuleSerializer

class MyNameViewSet(viewsets.ModelViewSet):
    queryset = MyName.objects.all()
    serializer_class = MyNameSerializer
    permission_classes = (IsAuthenticated,)

class MyNameRuleViewSet(viewsets.ModelViewSet):
    queryset = MyNameRule.objects.all()
    serializer_class = MyNameRuleSerializer
    permission_classes = (IsAuthenticated,)

class MyNameRuleFilterViewSet(generics.ListAPIView):
    serializer_class = MyNameRuleSerializer
    def get_queryset(self):
        query_my_name = self.kwargs['my_name']
        return MyNameRule.objects.filter(my_name__my_name=query_my_name)

urls.py

from rest_framework import routers
from noge.apps.noge import views
from noge.apps.noge.views import MyNameRuleFilterViewSet

router = routers.DefaultRouter(trailing_slash=False)
router.register(r'my_names', views.MyNameViewSet)
router.register(r'my_name_rules', views.MyNameRuleViewSet)

urlpatterns = patterns('noge.apps.noge.views',
                       url(r'^v1/my_name_rules/(?P<my_name>\w+)/$',MyNameRuleFilterViewSet.as_view()),
                       url(r'^v1/', include(router.urls)),
                       url(r'^$', 'index', name='index'),)

You should be able to do this! That's it (`・ ω ・ ´) ゞ