Changes:
-------
- Add aurweb.db.get_session()
- Returns aurweb.db's global `session` instance
- Provides us a way to change the implementation of the session
instance without interrupting user code.
- Use aurweb.db.get_session() in session API methods
- Add docstrings to session API methods
- Refactor aurweb.db.delete
- Normalize aurweb.db.delete to an alias of session.delete
- Refresh instances in places we depend on their non-PK columns
being up to date.
Signed-off-by: Kevin Morris <kevr@0cost.org>
We don't want to depend on the database to load up data
about the models we define. We now leverage the existing
`aurweb.schema` module for table definitions and set
__table_args__["autoload"] to False.
Signed-off-by: Kevin Morris <kevr@0cost.org>
This rewrites the entire model base as declarative models.
This allows us to more easily customize overlay fields
in tables and is more common.
This effort also brought some DB violations to light which
this commit addresses.
Signed-off-by: Kevin Morris <kevr@0cost.org>
