For the first example, you need to call the save method on the object, e.g. foo.save() instead of just save():
foo = FooModel() foo.save() Your second example looks ok. Make sure you are calling create() (all lowercase):
bar = BarModel.objects.create() The message ... no attribute 'Create'. suggests you are calling BarModel.objects.Create(), which is incorrect.
If that still doesn't work, then update your question with the actual code and full traceback. Using made up names like FooModel makes it harder to see the problem.