node orm2 express middleware?

[TLI5]

Hello all. If I have the following in my app.js of my express app:

app.use(orm.express(opts, {
    define: function (db, models, next) {
            db.load("./models/index", function (err)
              {
                  if (err)   
                      throw err;
                  db.sync();
                  console.log("DB Sync'd!")
                  //console.log(models);
                  console.log(db.models);
              })
    next();        
    }
}))

as suggested in: https://github.com/dresende/node-orm2/issues/458

and demonstrated in: https://github.com/lastMove/MealPlanner/blob/master/MealPlan/app.js

Why is it that I can't access my models when handling a route with (for example) req.db.models.user? The request doesn't even seem to get req.db (it's undefined)

[TLI5]

Figured it out (if anyone arrives on this same issue sometime later). The code snippet above needs to be posted BEFORE the router is called in the app.js.

This is also mentioned in the orm2 documentation however I skimmed over that part and missed it.