Introducing sorting for assets and groups

By adding the order property, it is now possible to query assets and
groups sorted by arbitrary order.

pillar/manage/node_types/asset.py

@@ -18,9 +18,13 @@ node_type_asset = {
                 'deleted'
             ],
         },
+        # Used for sorting within the context of a group
+        'order': {
+            'type': 'integer'
+        },
         # We expose the type of asset we point to. Usually image, video,
         # zipfile, ect.
-        'content_type':{
+        'content_type': {
             'type': 'string'
         },
         # We point to the original file (and use it to extract any relevant
@@ -52,6 +56,7 @@ node_type_asset = {
         'content_type': {'visible': False},
         'file': {'visible': False},
         'attachments': {'visible': False},
+        'order': {}
     },
     'permissions': {
         # 'groups': [{

pillar/manage/node_types/group.py

@@ -5,6 +5,10 @@ node_type_group = {
         'node_types': ['group', 'project']
     },
     'dyn_schema': {
+        # Used for sorting within the context of a group
+        'order': {
+            'type': 'integer'
+        },
         'url': {
             'type': 'string',
         },
@@ -25,6 +29,7 @@ node_type_group = {
         'url': {},
         'status': {},
         'notes': {},
+        'order': {}
     },
     'permissions': {
         # 'groups': [{