def _setting_update(values, setting_uuid):
"""
Used internally by setting_create and setting_update
:param values: A dict of attributes to set
:param setting_uuid: If None, create the setting, otherwise,
find and update it
"""
session = get_session()
with session.begin():
# should not update uuid
values.pop("uuid", None)
# Remove the properties passed in the values mapping. We
# handle properties separately from base setting attributes,
# and leaving properties in the values mapping will cause
# a SQLAlchemy model error because SQLAlchemy expects the
# properties attribute of an setting model to be a list and
# not a dict.
if setting_uuid:
setting_ref = setting_get(setting_uuid, session=session)
else:
setting_ref = models.Settings()
if setting_ref:
# Don't drop created_at if we're passing it in...
_drop_protected_attrs(models.Settings, values)
values['updated_at'] = timeutils.utcnow()
setting_ref.update(values)
# Should not set duplicate level and type pair
if setting_ref.level is not None and setting_ref.type is not None:
try:
setting_dup = setting_get_by_lever_type(setting_ref.level,
setting_ref.type)
except exception.NotFound:
setting_dup = None
if setting_dup and not setting_uuid:
raise exception.Duplicate(_("Setting level(%s)"
"-type(%s) pair already exists!") % \
(setting_ref.level,
setting_ref.type))
# Validate the attributes before we go any further. From my
# investigation, the @validates decorator does not validate
# on new records, only on existing records, which is, well,
# idiotic.
_update_values(setting_ref, values)
try:
setting_ref.save(session=session)
except sqlalchemy.exc.IntegrityError:
raise exception.Duplicate(_("Setting uuid already exists!"))
return setting_get(setting_ref.uuid)
def delete(self, session=None):
"""Delete this object"""
self.deleted = True
self.deleted_at = timeutils.utcnow()
self.save(session=session)