Merge "Sync db.sqlalchemy from oslo-incubator"

changes/29/52929/8
Jenkins 9 years ago committed by Gerrit Code Review
commit 35242b04eb
  1. 15
      keystone/openstack/common/db/sqlalchemy/models.py
  2. 29
      keystone/openstack/common/db/sqlalchemy/session.py
  3. 2
      keystone/openstack/common/db/sqlalchemy/test_migrations.py
  4. 10
      keystone/openstack/common/db/sqlalchemy/utils.py

@ -59,7 +59,16 @@ class ModelBase(object):
def get(self, key, default=None):
return getattr(self, key, default)
def _get_extra_keys(self):
@property
def _extra_keys(self):
"""Specifies custom fields
Subclasses can override this property to return a list
of custom fields that should be included in their dict
representation.
For reference check tests/db/sqlalchemy/test_models.py
"""
return []
def __iter__(self):
@ -67,7 +76,7 @@ class ModelBase(object):
# NOTE(russellb): Allow models to specify other keys that can be looked
# up, beyond the actual db columns. An example would be the 'name'
# property for an Instance.
columns.extend(self._get_extra_keys())
columns.extend(self._extra_keys)
self._i = iter(columns)
return self
@ -89,7 +98,7 @@ class ModelBase(object):
joined = dict([(k, v) for k, v in six.iteritems(self.__dict__)
if not k[0] == '_'])
local.update(joined)
return local.iteritems()
return six.iteritems(local)
class TimestampMixin(object):

@ -289,7 +289,9 @@ database_opts = [
deprecated_opts=[cfg.DeprecatedOpt('sql_idle_timeout',
group='DEFAULT'),
cfg.DeprecatedOpt('sql_idle_timeout',
group='DATABASE')],
group='DATABASE'),
cfg.DeprecatedOpt('idle_timeout',
group='sql')],
help='timeout before idle sql connections are reaped'),
cfg.IntOpt('min_pool_size',
default=1,
@ -601,18 +603,24 @@ def _thread_yield(dbapi_con, con_record):
time.sleep(0)
def _ping_listener(dbapi_conn, connection_rec, connection_proxy):
"""Ensures that MySQL connections checked out of the pool are alive.
def _ping_listener(engine, dbapi_conn, connection_rec, connection_proxy):
"""Ensures that MySQL and DB2 connections are alive.
Borrowed from:
http://groups.google.com/group/sqlalchemy/msg/a4ce563d802c929f
"""
cursor = dbapi_conn.cursor()
try:
dbapi_conn.cursor().execute('select 1')
except dbapi_conn.OperationalError as ex:
if ex.args[0] in (2006, 2013, 2014, 2045, 2055):
LOG.warning(_('Got mysql server has gone away: %s'), ex)
raise sqla_exc.DisconnectionError("Database server went away")
ping_sql = 'select 1'
if engine.name == 'ibm_db_sa':
# DB2 requires a table expression
ping_sql = 'select 1 from (values (1)) AS t1'
cursor.execute(ping_sql)
except Exception as ex:
if engine.dialect.is_disconnect(ex, dbapi_conn, cursor):
msg = _('Database server has gone away: %s') % ex
LOG.warning(msg)
raise sqla_exc.DisconnectionError(msg)
else:
raise
@ -670,8 +678,9 @@ def create_engine(sql_connection, sqlite_fk=False):
sqlalchemy.event.listen(engine, 'checkin', _thread_yield)
if 'mysql' in connection_dict.drivername:
sqlalchemy.event.listen(engine, 'checkout', _ping_listener)
if engine.name in ['mysql', 'ibm_db_sa']:
callback = functools.partial(_ping_listener, engine)
sqlalchemy.event.listen(engine, 'checkout', callback)
elif 'sqlite' in connection_dict.drivername:
if not CONF.sqlite_synchronous:
sqlalchemy.event.listen(engine, 'connect',

@ -23,7 +23,7 @@ import lockfile
import sqlalchemy
import sqlalchemy.exc
from keystone.openstack.common.gettextutils import _
from keystone.openstack.common.gettextutils import _ # noqa
from keystone.openstack.common import log as logging
from keystone.openstack.common.py3kcompat import urlutils
from keystone.openstack.common import test

@ -133,9 +133,9 @@ def paginate_query(query, model, limit, sort_keys, marker=None,
# Build up an array of sort criteria as in the docstring
criteria_list = []
for i in range(0, len(sort_keys)):
for i in range(len(sort_keys)):
crit_attrs = []
for j in range(0, i):
for j in range(i):
model_attr = getattr(model, sort_keys[j])
crit_attrs.append((model_attr == marker_values[j]))
@ -215,9 +215,9 @@ def drop_unique_constraint(migrate_engine, table_name, uc_name, *columns,
NullType with the correct column type.
:param migrate_engine: sqlalchemy engine
:param table_name: name of table that contains unique constraint.
:param uc_name: name of unique constraint that will be dropped.
:param columns: columns that are in unique constraint.
:param table_name: name of table that contains uniq constraint.
:param uc_name: name of uniq constraint that will be dropped.
:param columns: columns that are in uniq constraint.
:param col_name_col_instance: contains pair column_name=column_instance.
column_instance is instance of Column. These params
are required only for columns that have unsupported

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