本文整理汇总了Python中tvb.core.entities.storage.SA_SESSIONMAKER.delete方法的典型用法代码示例。如果您正苦于以下问题：Python SA_SESSIONMAKER.delete方法的具体用法？Python SA_SESSIONMAKER.delete怎么用？Python SA_SESSIONMAKER.delete使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类tvb.core.entities.storage.SA_SESSIONMAKER的用法示例。
在下文中一共展示了SA_SESSIONMAKER.delete方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: upgrade
# 需要导入模块: from tvb.core.entities.storage import SA_SESSIONMAKER [as 别名]
# 或者: from tvb.core.entities.storage.SA_SESSIONMAKER import delete [as 别名]
def upgrade(migrate_engine):
"""
Upgrade operations go here.
Don't create your own engine; bind migrate_engine to your metadata.
"""
meta.bind = migrate_engine
table = meta.tables['DATA_TYPES_GROUPS']
create_column(COL_RANGES_1, table)
create_column(COL_RANGES_2, table)
try:
## Iterate DataTypeGroups from previous code-versions and try to update value for the new column.
previous_groups = dao.get_generic_entity(model.DataTypeGroup, "0", "no_of_ranges")
for group in previous_groups:
operation_group = dao.get_operationgroup_by_id(group.fk_operation_group)
#group.only_numeric_ranges = operation_group.has_only_numeric_ranges
if operation_group.range3 is not None:
group.no_of_ranges = 3
elif operation_group.range2 is not None:
group.no_of_ranges = 2
elif operation_group.range1 is not None:
group.no_of_ranges = 1
else:
group.no_of_ranges = 0
dao.store_entity(group)
except Exception as excep:
## we can live with a column only having default value. We will not stop the startup.
logger = get_logger(__name__)
logger.exception(excep)
session = SA_SESSIONMAKER()
session.execute(text("""UPDATE "OPERATIONS"
SET status =
CASE
WHEN status = 'FINISHED' THEN '4-FINISHED'
WHEN status = 'STARTED' THEN '3-STARTED'
WHEN status = 'CANCELED' THEN '2-CANCELED'
ELSE '1-ERROR'
END
WHERE status IN ('FINISHED', 'CANCELED', 'STARTED', 'ERROR');"""))
session.commit()
session.close()
try:
session = SA_SESSIONMAKER()
for sim_state in session.query(SimulationState).filter(SimulationState.fk_datatype_group is not None).all():
session.delete(sim_state)
session.commit()
session.close()
except Exception as excep:
## It might happen that SimulationState table is not yet created, e.g. if user has version 1.0.2
logger = get_logger(__name__)
logger.exception(excep)示例2: IN
# 需要导入模块: from tvb.core.entities.storage import SA_SESSIONMAKER [as 别名]
# 或者: from tvb.core.entities.storage.SA_SESSIONMAKER import delete [as 别名]
session.execute(text("""UPDATE "OPERATIONS"
SET status =
CASE
WHEN status = 'FINISHED' THEN '4-FINISHED'
WHEN status = 'STARTED' THEN '3-STARTED'
WHEN status = 'CANCELED' THEN '2-CANCELED'
ELSE '1-ERROR'
END
WHERE status IN ('FINISHED', 'CANCELED', 'STARTED', 'ERROR');"""))
session.commit()
session.close()
try:
session = SA_SESSIONMAKER()
for sim_state in session.query(SimulationState).filter(SimulationState.fk_datatype_group is not None).all():
session.delete(sim_state)
session.commit()
session.close()
except Exception, excep:
## It might happen that SimulationState table is not yet created, e.g. if user has version 1.0.2
logger = get_logger(__name__)
logger.exception(excep)
def downgrade(migrate_engine):
"""Operations to reverse the above upgrade go here."""
meta.bind = migrate_engine
table = meta.tables['DATA_TYPES_GROUPS']
drop_column(COL_RANGES_1, table)
drop_column(COL_RANGES_2, table)