compiler.py order_by: tuple object has no attribute "startswith"

[marians]

I am just trying to go first steps with django-nonrel and created a model according to the tutorial at http://django-mongodb.org/tutorial.html. When I run python manage.py syncdb, I get the following error:

(venv)Marians-MBP:testsite marian$ python manage.py syncdb
Creating tables ...
Traceback (most recent call last):
  File "manage.py", line 14, in <module>
    execute_manager(settings)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/base.py", line 191, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 109, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/core/management/sql.py", line 190, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 172, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 41, in create_permissions
    'content_type', 'codename')[:1000000]:
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/db/models/query.py", line 107, in _result_iter
    self._fill_cache()
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/db/models/query.py", line 774, in _fill_cache
    self._result_cache.append(self._iter.next())
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django/db/models/query.py", line 961, in iterator
    for row in self.query.get_compiler(self.db).results_iter():
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/djangotoolbox/db/basecompiler.py", line 335, in results_iter
    results = self.build_query(fields).fetch(
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/djangotoolbox/db/basecompiler.py", line 431, in build_query
    query.order_by(self._get_ordering())
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django_mongodb_engine/compiler.py", line 67, in wrapper
    return func(*args, **kwargs)
  File "/Users/marian/Documents/projects/django-nonrel-testproject/venv/lib/python2.7/site-packages/django_mongodb_engine/compiler.py", line 104, in order_by
    if order.startswith('-'):
AttributeError: 'tuple' object has no attribute 'startswith'

[linhvo]

I've got the same issue when setting django-mongodb-engine as my default database.

[mominafiz]

I too got the same error.

[nezo]

Which version of mongodb-engine are you using?

I had the same issue, but updating to branch '1.5' solved it.

[mominafiz]

ohhk.. thanks nezo.. i think i need to switch to mongodb-engine. Currently I am using django-mongodb-engine.