gistfile1.py

@classmethod
def my_func(cls, *args):
  '''
  A model function -- not a full Django View.
  '''
  with transaction.commit_manually(using='custom_connection'):
    obj = OtherModel.objects.get(...)
    try:
      # do stuff
      obj.save()
    except:
      # do other stuff
      obj.save()
    print 'pre-commit'
    transaction.commit()
    print 'post-commit'
    


RESULTS IN:
  >>> MyClass.my_func()
  >>> 'pre-commit'
  >>> TransactionManagementError: This code isnt under transaction management.
  
  ** Note that the `obj.save()` line hits and is reflected by my database.