Finished implementation/test for PUT option

src/puppies/tests/test_views.py

@@ -97,3 +97,41 @@ class CreateNewPuppyTest(TestCase):
             content_type='application/json'
         )
         self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+
+class UpdateSinglePuppyTest(TestCase):
+    """ Test module for updating an existing puppy record 
+    Test PUT option
+    """
+
+    def setUp(self):
+        self.casper = Puppy.objects.create(
+            name='Casper', age=3, breed='Bull Dog', color='Black')
+        self.muffin = Puppy.objects.create(
+            name='Muffy', age=1, breed='Gradane', color='Brown')
+        self.valid_payload = {
+            'name': 'Muffy',
+            'age': 2,
+            'breed': 'Labrador',
+            'color': 'Black'
+        }
+        self.invalid_payload = {
+            'name': '',
+            'age': 4,
+            'breed': 'Pamerion',
+            'color': 'White'
+        }
+
+    def test_valid_update_puppy(self):
+        response = client.put(
+            reverse('get_delete_update_puppy', kwargs={'pk': self.muffin.pk}),
+            data=json.dumps(self.valid_payload),
+            content_type='application/json'
+        )
+        self.assertEqual(response.status_code, status.HTTP_204_NO_CONTENT)
+
+    def test_invalid_update_puppy(self):
+        response = client.put(
+            reverse('get_delete_update_puppy', kwargs={'pk': self.muffin.pk}),
+            data=json.dumps(self.invalid_payload),
+            content_type='application/json')
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)

src/puppies/views.py

@@ -7,7 +7,7 @@ from rest_framework import status
 from .models import Puppy
 from .serializers import PuppySerializer
 
-@api_view(['GET', 'DELETE', 'UPDATE'])
+@api_view(['GET', 'DELETE', 'PUT'])
 def get_delete_update_puppy(request, pk):
     try:
         puppy = Puppy.objects.get(pk=pk)
@@ -16,6 +16,9 @@ def get_delete_update_puppy(request, pk):
 
     # get details of a single puppy
     if request.method == 'GET':
+        
+        # return Response({})
+
         # we get the puppy using an ID. Run the tests to ensure they all pass.
         serializer = PuppySerializer(puppy)
         return Response(serializer.data)
@@ -24,17 +27,30 @@ def get_delete_update_puppy(request, pk):
         return Response({})
     # update details of a single puppy
     elif request.method == 'PUT':
-        return Response({})
+
+        # return Response({})
+
+        serializer = PuppySerializer(puppy, data=request.data)
+        if serializer.is_valid():
+            serializer.save()
+            return Response(serializer.data, status=status.HTTP_204_NO_CONTENT)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
 @api_view(['GET', 'POST'])
 def get_post_puppies(request):
     # get all puppies
     if request.method == 'GET':
+
+        # return Response({})
+
         puppies = Puppy.objects.all()
         serializer = PuppySerializer(puppies, many=True) # generate a nested list of 'edit' items
         return Response(serializer.data)
     # insert a new record for a puppy
     elif request.method == 'POST':
+
+        # return Response({})
+
         data = {
             'name': request.data.get('name'),
             'age': int(request.data.get('age')),