Fix listing and removing roles from users.

* Listing roles was failing due to a mismatch in returned data
and how it was being processed. Removed role id lookup for now,
so output only shows role names.
* Delete required json data, and this argument was missing.

Change-Id: I7b4ca739ae03443c0b2a885872f4b557a9998efb

adjutantclient/common/base.py

@@ -198,12 +198,14 @@ class BaseManager(HookableMixin):
         else:
             return self.resource_class(self, body)
 
-    def _delete(self, url):
+    def _delete(self, url, json=None):
         """Delete an object.
 
         :param url: a partial URL, e.g., '/servers/my-server'
+        :param json: data that will be encoded as JSON and sent with the
+            DELETE request.
         """
-        return self.client.delete(url)
+        return self.client.delete(url, json=json)
 
 
 class ManagerWithFind(BaseManager, metaclass=abc.ABCMeta):

adjutantclient/osc/v1/users.py

@@ -171,10 +171,8 @@ class UserRoleList(command.Lister):
         client = self.app.client_manager.admin_logic
 
         user = utils.find_resource(client.users, parsed_args.user)
-        kwargs = {'user': user.id}
-        roles = [[role.id, role.name] for role
-                 in client.user_roles.list(**kwargs)]
-        return ['id', 'name'], roles
+
+        return ['name'], [[role] for role in user.roles]
 
 
 class ManageableRolesList(command.Lister):

adjutantclient/v1/roles.py

@@ -87,6 +87,7 @@ class UserRoleManager(base.BaseManager):
 
     def remove(self, user_id, role=None, roles=None):
         """Remove a role or roles from a user"""
+
         if role:
             params = {
                 'roles': [role]
@@ -99,7 +100,7 @@ class UserRoleManager(base.BaseManager):
         route = '/openstack/users/%s/roles'
         url = route % (user_id)
         try:
-            self._delete(url, json=params, response_key=None)
+            self._delete(url, json=params)
         except exc.HTTPBadRequest as e:
             print(e.message)
             return False