django - How to tell if your select query is within a transaction or not?

Question

In Django 1.5.x, I have a long running management command where select queries are returning stale data. I suspect this is due to the fact that they are running within a transaction that are started earlier on the db connnection. Is there a way a tell if a query runs within a transaction or it is in autocommit mode?

(this is somewhat more focused version of an earlier question I posted at https://stackoverflow.com/questions/18540099/orm-does-not-return-recent-database-changes)

Answer 1

从 Django 1.7 开始，Connection.in_atomic_block将告诉您连接是否在事务中。似乎没有记录，但它适用于我的机器：

from django.db import transaction
cxn = transaction.get_connection()
if cxn.in_atomic_block:
    print "We're inside a transaction!"

Answer 2

从 Django 1.6 开始，您可以通过transaction.get_autocommit API判断您是否处于自动提交模式。

from django.db import transaction

if transaction.get_autocommit():
    pass  # We are in autocommit

Answer 3

您可以通过检查来检查您是否在交易中is_managed

if transaction.is_managed():
    print "tutsi frutsi!"