Hi,
I have a setup where I need to create manually a connection to a
SQLite DB. I haven't really
succeeded in doing that so far.
More precisely, I am running a test suite which uses
django.test.utils.setup_test_environment() and
the test DB defined settings.TEST_DATABASE_NAME. That works well in a
single process with SQLite.
However, my program launches another process using
multiprocessing.Process() (on windows) and here
starts the trouble. In the new process, django keeps using
settings.DATABASE_NAME instead of the
test DB. I have tried giving several hints without success.
Here is the function that I launch through Process() :
def doJob( jobname, testMode, jobfunc, *jobargs, **jobkwargs ):
'''Function executed by the new process. '''
import settings
if testMode:
info( 'Process job is in test mode.' )
settings.DATABASE_NAME = settings.TEST_DATABASE_NAME
dbg( 'DB used for Process: %s' % settings.DATABASE_NAME )
setup_test_environment()
django.db.connection.close()
# call_command('syncdb', verbosity=1, interactive=False)
reload( django.db )
django.db.connection.cursor()
# ...
As you can see, my various attempts were not successful. Can somebody
give me a hint on how to
create manually the connection with the test DB ?
I am pretty sure that the problem comes from using
multiprocessing.Process on Windows. On unix, fork() duplicates the
memory content of the process to the new process so the problem
probably don't show up. But on
Windows, Process() starts an empty process and multiprocessing does
some magic to import the same
list of modules that the parent process had. While importing this
list, my guess is that settings is
imported directly and that the setup_test_environment() has then no
action.
I really believe that the proper fix is to setup the DB link manually
but I haven't really figured
out how to do so.
thanks in advance,
Philippe
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