Implements subtree_as_ids and parents_as_ids

This patch implements the new ways to get the project's hierarchy:
  'subtree_as_ids': If True, returns projects IDs down the hierarchy
                    as a structured dictionay.
  'parents_as_ids': If True, returns projects IDs up the hierarchy
                    as a structured dictionay.

Change-Id: Ia3afe994893dfca059cb8361f7ab1c14e28e1ad5
Implements: blueprint hierarchical-multitenancy-improvements

1 files changed, 9 insertions, 0 deletions

diff --git a/keystoneclient/base.py b/keystoneclient/base.py
index 81d5e26..2af38b9 100644
--- a/keystoneclient/base.py
+++ b/keystoneclient/base.py
@@ -340,6 +340,15 @@ class CrudManager(Manager):
     def _build_query(self, params):
         return '?%s' % urllib.parse.urlencode(params) if params else ''
 
+    def build_key_only_query(self, params_list):
+        """Builds a query that does not include values, just keys.
+
+        The Identity API has some calls that define queries without values,
+        this can not be accomplished by using urllib.parse.urlencode(). This
+        method builds a query using only the keys.
+        """
+        return '?%s' % '&'.join(params_list) if params_list else ''
+
     @filter_kwargs
     def list(self, fallback_to_auth=False, **kwargs):
         url = self.build_url(dict_args_in_out=kwargs)