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我有以下幾點:爲什麼SQLAlchemy的執行更新不工作
@periodic_task(run_every=crontab(minute="*/1"))
def PeriodicUpdateAgentLastRica():
query = """update agents
inner join
(select sims.consignment_agents_id as agents_id,
MAX(sims.rica_current_stamp)
as last_rica_stamp
from sims
where sims.rica_current_stamp > DATE_SUB(now(), INTERVAL 3 MONTH) and sims.consignment_agents_id is not NULL
group by sims.consignment_agents_id) as dt on dt.agents_id = agents.id
set agents.last_rica_stamp = dt.last_rica_stamp"""
res = Session.execute(query)
print res
if res.rowcount:
log.info("Updated %s agents" % res.rowcount)
#transaction.commit()
當我運行celery worker -B
這是返回什麼:
[2014-02-12 09:15:00,012: INFO/MainProcess] Received task: prepaid.models.Prepaid.PeriodicUpdateAgentLastRica[9ca091c8-595f-4163-8ddf-2742e573b90c]
[2014-02-12 09:15:01,812: WARNING/Worker-7] <sqlalchemy.engine.result.ResultProxy object at 0x776f310>
[2014-02-12 09:15:01,813: INFO/Worker-7] Updated 2923 agents
[2014-02-12 09:15:01,816: INFO/MainProcess] Task prepaid.models.Prepaid.PeriodicUpdateAgentLastRica[9ca091c8-595f-4163-8ddf-2742e573b90c] succeeded in 1.798980095s: None
即使它說,它更新:Updated 2923 agents
,當我檢查數據庫,沒有記錄改變。
查詢沒有問題,因爲當我在mySQL Workbench中運行它時,它就起作用了。
同樣的,當我嘗試強制AutoCommit,即
res = Session.execute(text(query).execution_options(autocommit=True))
所以犯,但仍然Update
不影響DB發生。 爲什麼它不影響數據庫?爲什麼它不起作用?
UPDATE
我也想這樣做:
with transaction.manager:
#Rest of code
但它仍然無法在DB
改變什麼
它給我的follwing錯誤:'任務prepaid.models.Prepaid.PeriodicUpdateAgentLastRica [260cb057-c117-4c68-bb 08-a55a169ce684] raise unexpected:AttributeError(「'scoped_session'object has no attribute'twophase'」,)' – Renier
另一種方法是在執行操作之前標記它已更改。往上看。 –