using database from a library or script - how to?

[cleemesser]

Hello,
I am new to flask, flask-sqlalchemy, and flask-diamond. My use case is that I would like to use flask-diamond to setup flask and sqlalchemy so that I can use my sqlalchemy database both as part of a web application and from my library and script codes outside of the web application.

In the flask-alchemy documentation, it sounds like one needs to initialize sqlAlchemy's init_app and then create an application context (http://flask-sqlalchemy.pocoo.org/2.1/contexts/). It is not clear to me how much of this is already being done for me in flask-diamond. Can you clarify?

Here is a template, assuming my flask-diamond application is myapplication. It appears to work, so I am guessing that I already have a context to work with.

Can you clarify?

Update

I've traced back through the Diamond code and it looks like, I had things wrong before. To set up to access my flask-diamond database from an outside library or script, I need to do:

# if flask-diamond has scaffolded out a new custom app called myapplication
# SETTINGS needs to be already set either in the environment (or via os.environ['SETTINGS'])
import myapplication
app = myapplication.create_app()

with app.app_context():
    do_stuff_with_app

If others agree this is correct, I can write this up as documentation if there is a place for recipies or how to information.