id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
22309	DatabaseFeatures.supports_transactions should use temporary tables	lucastan@…	nobody	"I am using South 0.8.4  (refer to source https://bitbucket.org/andrewgodwin/south/src/c26229113db6bbdebf36e6b31d76b45a48e29340/south/db/generic.py?at=0.8.4#cl-124)

The file  south/db/generic.py  has this function has_ddl_transactions which access django.db.connection.features.supports_transactions

However, upon accessing, it gives an error. The error could be reproduced by the following:

{{{

./manage.py shell

>>> from django.db import connection
>>> connection.features.supports_transactions

Traceback (most recent call last):
  File ""<console>"", line 1, in <module>
  File ""/home/xx/venv/local/lib/python2.7/site-packages/django/utils/functional.py"", line 49, in __get__
    res = instance.__dict__[self.func.__name__] = self.func(instance)
  File ""/home/xx/venv/local/lib/python2.7/site-packages/django/db/backends/__init__.py"", line 664, in supports_transactions
    self.connection.leave_transaction_management()
  File ""/home/xx/venv/local/lib/python2.7/site-packages/django/db/backends/__init__.py"", line 315, in leave_transaction_management
    ""Transaction managed block ended with pending COMMIT/ROLLBACK"")
TransactionManagementError: Transaction managed block ended with pending COMMIT/ROLLBACK



}}}

Using south 0.8.4 and django 1.6. Seems like a Django error? But in the first place, is it safe to access  features attribute?
"	Cleanup/optimization	closed	Database layer (models, ORM)	dev	Normal	wontfix			Accepted	0	0	0	0	0	0