For SQLAlchemy to automatically understand updates from the
external world, it must use an `autocommit=True` in its session.
This change breaks how we were using commit previously, as
`autocommit=True` causes SQLAlchemy to commit when a
SessionTransaction context hits __exit__.
So, a refactoring was required of our tests: All usage of
any `db.{create,delete}` must be called **within** a
SessionTransaction context, created via new `db.begin()`.
From this point forward, we're going to require:
```
with db.begin():
db.create(...)
db.delete(...)
db.session.delete(object)
```
With this, we now get external DB modifications automatically
without reloading or restarting the FastAPI server, which we
absolutely need for production.
Signed-off-by: Kevin Morris <kevr@0cost.org>
First off: This commit changes the default development database
backend to mysql. sqlite, however, is still completely supported
with the caveat that a user must now modify config.dev to use
the sqlite backend.
While looking into this, it was discovered that our SQLAlchemy
backend for mysql (mysql-connector) completely broke model
attributes when we switched to utf8mb4_bin (binary) -- it does
not correct the correct conversion to and from binary utf8mb4.
The new, replacement dependency mysqlclient does. mysqlclient
is also recommended in SQLAlchemy documentation as the "best"
one available.
The mysqlclient backend uses a different exception flow then
sqlite, and so tests expecting IntegrityError has to be modified
to expect OperationalError from sqlalchemy.exc.
So, for each model that we define, check keys that can't be
NULL and raise sqlalchemy.exc.IntegrityError if we have to.
This way we keep our exceptions uniform.
Signed-off-by: Kevin Morris <kevr@0cost.org>
This fixes SQLAlchemy warnings related to primary keys not
having an auto_increment or nullable.
We've done this by making all foreign primary keys nullable.
In ApiRateLimit's case, we can set a default str to act as
a null, which seems a bit more sensible.
Signed-off-by: Kevin Morris <kevr@0cost.org>
