Store Selected User Info in Database

Using Symfony 1.4.x (with Propel), I've been given a task that requires me to share specific user info with multiple external systems. This is currently stored as a session (in memory) attribute, but I need to get it into a database so that I can create an API that will provide that info to authorized cons开发者_如何学运维umers.

I'd rather not overhaul the system to store all session data in the database (unless it's trivial and can handle namespaces), but I can't find any information on a recommended way for the myUser class to write data to the database. Is it possible to do this since the class doesn't have a model, per se (that I'm aware of)? Are there any recommended solutions or best practices for doing this?

Thanks.

UPDATE

If I were to boil this all the way down to its bare essentials, I guess the key question is this: What's the "best" way to read from/write to a database from the myUser class? Or, alternatively, is there another path that's recommended to accomplish the same end result?

Will storing result of json_encodeing or serializeing of

$myUserInstance->getAttributeHolder()->getAll()

do the job?

In the absence of a good means of accessing a database from the myUser class, I opted for a slightly different path. I installed memcached in a location accessible by both apps and extended PHP's Memcached class to apply a few customizations. The apps can now share information by writing specially formatted keys to the memcached instance.

I opted not to overhaul my existing cache storage mechanism (why upset the apple cart?) and am reading from/writing to memcached selectively for information that truly needs to be shared.