Add a RepositoryGroup ViewSet.

closes #2308
https://pulp.plan.io/issues/2308

app/pulp/app/models/base.py

@@ -142,4 +142,6 @@ def master_model(options):
     except IndexError:
         # Also None if this model is itself the master.
         return None
+
+
 options.Options.master_model = property(master_model)

app/pulp/app/serializers/repository.py

@@ -42,6 +42,12 @@ class Meta:
 
 
 class RepositoryGroupSerializer(ModelSerializer):
+
+    _href = serializers.HyperlinkedIdentityField(
+        view_name='repo_groups-detail',
+        lookup_field='name',
+    )
+
     name = serializers.CharField(
         help_text='A unique name for this repository group.'
     )

app/pulp/app/viewsets/__init__.py

@@ -1,6 +1,6 @@
 from pulp.app.viewsets.base import NamedModelViewSet  # NOQA
 from pulp.app.viewsets.content import ContentViewSet  # NOQA
 from pulp.app.viewsets.repository import (ImporterViewSet, PublisherViewSet,  # NOQA
-    RepositoryViewSet)  # NOQA
+    RepositoryViewSet, RepositoryGroupViewSet)  # NOQA
 from pulp.app.viewsets.task import TaskViewSet, WorkerViewSet  # NOQA
 from pulp.app.viewsets.user import UserViewSet  # NOQA

app/pulp/app/viewsets/repository.py

@@ -1,10 +1,10 @@
 from django_filters.rest_framework import filters, filterset
 from rest_framework import decorators, pagination
 
-from pulp.app.models import Importer, Publisher, Repository
+from pulp.app.models import Importer, Publisher, Repository, RepositoryGroup
 from pulp.app.pagination import UUIDPagination
 from pulp.app.serializers import (ContentSerializer, ImporterSerializer, PublisherSerializer,
-                                  RepositorySerializer)
+                                  RepositorySerializer, RepositoryGroupSerializer)
 from pulp.app.viewsets import NamedModelViewSet
 from pulp.app.viewsets.custom_filters import CharInFilter
 
@@ -70,3 +70,10 @@ class PublisherViewSet(NamedModelViewSet):
     endpoint_name = 'publishers'
     serializer_class = PublisherSerializer
     queryset = Publisher.objects.all()
+
+
+class RepositoryGroupViewSet(NamedModelViewSet):
+    endpoint_name = 'repo_groups'
+    queryset = RepositoryGroup.objects.all()
+    serializer_class = RepositoryGroupSerializer
+    lookup_field = 'name'