Re-add private _compute_node_get call to sql api.

Re-adds a private _compute_node_get call to the sql api.
This call is in used by the compute manager.

Fixes LP Bug #1013061.

Change-Id: I28c578509ac70ac7bccede41c3210a46ae56e717

1 files changed, 11 insertions, 1 deletions

diff --git a/nova/db/sqlalchemy/api.py b/nova/db/sqlalchemy/api.py
index d0203f29e..d848d8c37 100644
--- a/nova/db/sqlalchemy/api.py
+++ b/nova/db/sqlalchemy/api.py
@@ -472,6 +472,16 @@ def service_update(context, service_id, values):
 
 ###################
 
+def _compute_node_get(context, compute_id, session=None):
+    result = model_query(context, models.ComputeNode, session=session).\
+                     filter_by(id=compute_id).\
+                     first()
+
+    if not result:
+        raise exception.ComputeHostNotFound(host=compute_id)
+
+    return result
+
 
 @require_admin_context
 def compute_node_get_all(context, session=None):
@@ -532,7 +542,7 @@ def compute_node_update(context, compute_id, values, auto_adjust):
     if auto_adjust:
         _adjust_compute_node_values_for_utilization(context, values, session)
     with session.begin(subtransactions=True):
-        compute_ref = compute_node_get(context, compute_id, session=session)
+        compute_ref = _compute_node_get(context, compute_id, session=session)
         compute_ref.update(values)
         compute_ref.save(session=session)