My question is more about how to pass something to the app without sticking
it in a global. This might be a noir question. Handlers are called without
any passed context. I'm not sure if that's peculiar to noir, or something
inherited from ring. So, the only way I know to get context to the app is
to merge it into the request context with middleware.
(defn db-middleware [db app]
(fn [req]
(app (assoc req :db db))))
where db could be the connection pool, or db credentials, or whatever else
is required to make a connection.
On Monday, September 23, 2013 12:35:26 PM UTC-7, Sean Corfield wrote:
>
> Take a look at
> http://clojure-doc.org/articles/ecosystem/java_jdbc/connection_pooling.html
>
> You would want to set up a connection pool and pass that into your app
> as part of its context.
>
> Does that help?
>
> Sean
>
> On Mon, Sep 23, 2013 at 11:25 AM, Brian Craft
> <craft...@gmail.com<javascript:>>
> wrote:
> > Trying to get a small app off the ground with noir/jdbc/jetty (jdbc
> 0.2.2, I
> > think), I'm getting a "No valid DB connection selected" error.
> >
> > I suspect this is because I start it something like
> >
> > (with-connection mydb
> > (server/start))
> >
> > which creates a thread-local binding of *db* in jdbc, then starts jetty
> in a
> > different thread, with no binding for *db*.
> >
> > Does that sound correct?
> >
> > If so, I'm not sure how to work around it.
> >
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> Sean A Corfield -- (904) 302-SEAN
> An Architect's View -- http://corfield.org/
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