AC-601 Add groups/hosts collections to inventory sources, add inventory sources collections to groups/hosts to indicate which inventory source(s) have created/updated the given groups/hosts. Prevent setting an explicit inventory source for a group that is being managed by another parent with cloud inventory source.

awx/api/views.py

@@ -722,6 +722,14 @@ class HostAllGroupsList(SubListAPIView):
         sublist_qs = parent.all_groups.distinct()
         return qs & sublist_qs
 
+class HostInventorySourcesList(SubListAPIView):
+
+    model = InventorySource
+    serializer_class = InventorySourceSerializer
+    parent_model = Host
+    relationship = 'inventory_sources'
+    new_in_148 = True
+
 class HostActivityStreamList(SubListAPIView):
 
     model = ActivityStream
@@ -815,6 +823,14 @@ class GroupAllHostsList(SubListAPIView):
         sublist_qs = parent.all_hosts.distinct()
         return qs & sublist_qs
 
+class GroupInventorySourcesList(SubListAPIView):
+
+    model = InventorySource
+    serializer_class = InventorySourceSerializer
+    parent_model = Group
+    relationship = 'inventory_sources'
+    new_in_148 = True
+
 class GroupActivityStreamList(SubListAPIView):
 
     model = ActivityStream
@@ -980,7 +996,6 @@ class InventorySourceDetail(RetrieveUpdateAPIView):
     serializer_class = InventorySourceSerializer
     new_in_14 = True
 
-
 class InventorySourceSchedulesList(SubListCreateAPIView):
 
     view_name = "Inventory Source Schedules"
@@ -1000,6 +1015,22 @@ class InventorySourceActivityStreamList(SubListAPIView):
     relationship = 'activitystream_set'
     new_in_145 = True
 
+class InventorySourceHostsList(SubListAPIView):
+
+    model = Host
+    serializer_class = HostSerializer
+    parent_model = InventorySource
+    relationship = 'hosts'
+    new_in_148 = True
+
+class InventorySourceGroupsList(SubListAPIView):
+
+    model = Group
+    serializer_class = GroupSerializer
+    parent_model = InventorySource
+    relationship = 'groups'
+    new_in_148 = True
+
 class InventorySourceUpdatesList(SubListAPIView):
 
     model = InventoryUpdate