From 682fb1de14c142816df2a453062abfd351157a4b Mon Sep 17 00:00:00 2001
From: liyingjun <liyingjun1988@gmail.com>
Date: Fri, 17 May 2013 11:20:50 +0800
Subject: Editable default quota support

Implement blueprint edit-default-quota

DocImpact

Using the class quotas named `default` as the default editable quotas.

We can use the following novaclient command to update default quota:

nova quota-class-update default <key> <value>

Change-Id: I5a5001fadcbd61d550ebd5bdc33613b0ffdf29b2
---
 nova/db/api.py            |  5 +++++
 nova/db/sqlalchemy/api.py | 13 +++++++++++++
 2 files changed, 18 insertions(+)

(limited to 'nova/db')

diff --git a/nova/db/api.py b/nova/db/api.py
index d294ee1d7..ffb992359 100644
--- a/nova/db/api.py
+++ b/nova/db/api.py
@@ -911,6 +911,11 @@ def quota_class_get(context, class_name, resource):
     return IMPL.quota_class_get(context, class_name, resource)
 
 
+def quota_class_get_default(context):
+    """Retrieve all default quotas."""
+    return IMPL.quota_class_get_default(context)
+
+
 def quota_class_get_all_by_name(context, class_name):
     """Retrieve all quotas associated with a given quota class."""
     return IMPL.quota_class_get_all_by_name(context, class_name)
diff --git a/nova/db/sqlalchemy/api.py b/nova/db/sqlalchemy/api.py
index a35e8154d..2edd7ca52 100644
--- a/nova/db/sqlalchemy/api.py
+++ b/nova/db/sqlalchemy/api.py
@@ -81,6 +81,7 @@ get_session = db_session.get_session
 
 
 _SHADOW_TABLE_PREFIX = 'shadow_'
+_DEFAULT_QUOTA_NAME = 'default'
 
 
 def get_backend():
@@ -2576,6 +2577,18 @@ def quota_class_get(context, class_name, resource):
     return result
 
 
+def quota_class_get_default(context):
+    rows = model_query(context, models.QuotaClass, read_deleted="no").\
+                   filter_by(class_name=_DEFAULT_QUOTA_NAME).\
+                   all()
+
+    result = {'class_name': _DEFAULT_QUOTA_NAME}
+    for row in rows:
+        result[row.resource] = row.hard_limit
+
+    return result
+
+
 @require_context
 def quota_class_get_all_by_name(context, class_name):
     nova.context.authorize_quota_class_context(context, class_name)
-- 
cgit