U accept or decline friend request

JoinTheCityREST/app/Friendship/models.py

@@ -2,8 +2,18 @@ from django.contrib.auth.models import User
 from django.db import models
 
 # Create your models here.
+from app.User.models import UserFriendship
+
+
 class FriendshipRequest(models.Model):
     user = models.ForeignKey(User, related_name='user_friendship_request_target',
                              blank=False, null=False, default=None)
     created_by = models.ForeignKey(User, related_name='user_friendship_request_creator',
                              blank=False, null=False, default=None)
+
+    def accept(self):
+        user_friendship = UserFriendship(user=self.user, friend=self.created_by)
+        user_friendship.save()
+        user_friendship = UserFriendship(friend=self.user, user=self.created_by)
+        user_friendship.save()
+        self.delete()
\ No newline at end of file

JoinTheCityREST/app/Friendship/views.py

 # Create your views here.
+from django.shortcuts import get_object_or_404
+from requests import Response
 from rest_framework import viewsets, permissions
+import rest_framework
+from rest_framework.decorators import detail_route
 from app.Friendship.models import FriendshipRequest
 from app.Friendship.serializers import FriendshipRequestSerializer
 
@@ -19,3 +23,15 @@ class FriendshipRequestViewSet(viewsets.ModelViewSet):
         page = self.paginate_queryset(queryset)
         serializer = FriendshipRequestSerializer(page, many=True, context={'request': request})
         return self.get_paginated_response(serializer.data)
+
+    @detail_route()
+    def accept(self, request, pk=None):
+        friendship_request = get_object_or_404(self.queryset, pk=pk)
+        friendship_request.accept()
+        return Response(status=rest_framework.status.HTTP_200_OK)
+
+    @detail_route()
+    def decline(self, request, pk=None):
+        friendship_request = get_object_or_404(self.queryset, pk=pk)
+        friendship_request.delete()
+        return Response(status=rest_framework.status.HTTP_200_OK)