Thanks for the advise I'll look into that. I was trying to figure out how 
best to get a db connection and make sure its closes properly. putting it 
an a tween seemed convienent, but I get what your saying about the 
unnessary load for every request especiualy if a connection to the database 
is not needed.

Jose

On Monday, July 20, 2015 at 2:48:29 PM UTC-4, Jonathan Vanasco wrote:
>
> I'm not sure what `request.peewee_dbs()[db].connect()` does, but I would 
> probably recommend against this db setup pattern that you're using.  By 
> doing this in a tween, every request that pyramid handles will do a 
> connect/disconnect to all the databases you defined.
>
> One of the more popular patterns to implement db connections is something 
> like this:
>
> - `add_request_method` provides an object that either returns an database 
> connection, or creates a new one.
> - if you create a new connection, it registers a 'db.close()' via 
> `add_finished_callback`
>
> this way you only connect as needed, and disconnect to actually connected 
> databases.
>

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