The db.api module provides a useless indirection to the only
implementation we ever had, sqlalchemy. Let's use that directly instead
of the wrapper.
Change-Id: I80353cfed801b95571523515fd3228eae45c96ae
1. don't return DB models from the objects API
(only return Objects)
2. delete shouldn't return anything
3. update_and_save should return the refreshed object.
Note: there is still some inconsistency in what is returned by
update_by_id() some return an object and some return a bool.
Related-bug: #1432936
Change-Id: I1a0a38773d4fc4a62af5e0a98076396f39187b6c
In Heat objects, the default value of nullable attribute is
set in many of the object's fields, which is not required
as oslo object Field defines nullable as False by default
Change-Id: I0164b64c043816f624aeba19561a4a5f8d36689d
Closes-bug: #1439957
Prototype implementation of oslo.versionedobjects.
This patch adds SoftwareDeployment object.
Partially implements bp versioned-objects
Co-Authored-By: ShaoHe Feng <shaohe.feng@intel.com>
Co-Authored-By: He Jie Xu <hejie.xu@intel.com>
Change-Id: I3666a8b2552d8c0c9dcf05efd9c423ff5252f77d
Thomas Herve