feat(itim): Service Notes ViewSet

ref: #526 #534

app/itim/serializers/service.py

@@ -73,7 +73,13 @@ class ServiceModelSerializer(
                     'model_pk': item.pk
                 }
             ),
-            'notes': reverse("v2:_api_v2_service_notes-list", request=self._context['view'].request, kwargs={'service_id': item.pk}),
+            'notes': reverse(
+                "v2:_api_v2_service_note-list",
+                request=self._context['view'].request,
+                kwargs={
+                    'model_id': item.pk
+                }
+            ),
             'tickets': reverse(
                 "v2:_api_v2_item_tickets-list",
                 request=self._context['view'].request,

app/itim/viewsets/service_notes.py

@@ -0,0 +1,66 @@
+from drf_spectacular.utils import extend_schema, extend_schema_view, OpenApiResponse
+
+from core.viewsets.model_notes import ModelNoteViewSet
+
+from itim.serializers.service_notes import (
+    ServiceNotes,
+    ServiceNoteModelSerializer,
+    ServiceNoteViewSerializer
+)
+
+
+
+
+@extend_schema_view(
+    create=extend_schema(
+        summary = 'Add a note to a Service',
+        description = '',
+        responses = {
+            201: OpenApiResponse(description='created', response=ServiceNoteViewSerializer),
+            400: OpenApiResponse(description='Validation failed.'),
+            403: OpenApiResponse(description='User is missing create permissions'),
+        }
+    ),
+    destroy = extend_schema(
+        summary = 'Delete a Service note',
+        description = ''
+    ),
+    list = extend_schema(
+        summary = 'Fetch all Service notes',
+        description='',
+    ),
+    retrieve = extend_schema(
+        summary = 'Fetch a single Service note',
+        description='',
+    ),
+    update = extend_schema(exclude = True),
+    partial_update = extend_schema(
+        summary = 'Update a Service note',
+        description = ''
+    ),
+)
+class ViewSet(ModelNoteViewSet):
+
+    model = ServiceNotes
+
+
+    def get_serializer_class(self):
+
+        if self.serializer_class is not None:
+
+            return self.serializer_class
+
+
+        if (
+            self.action == 'list'
+            or self.action == 'retrieve'
+        ):
+
+            self.serializer_class = ServiceNoteViewSerializer
+
+
+        else:
+            
+            self.serializer_class = ServiceNoteModelSerializer
+
+        return self.serializer_class