[aerogear-dev] Database filtering

If the app is running in the foreground, I can control what the notification shows or does next, because I can use the parameters I sent previously in the message to decide if I show it or not, or what I'm going to do according to the data retrieved, before it triggers to the screen. Example: function onNotification(e) { tit = e.payload.at; notif= e.payload.av; ent = e.payload.en; url= e.payload.ul; if (e.foreground) { if (ent==entID){ // a given condition navigator.notification. confirm( notif, onConfirmDo, tit, 'OK' ); function onConfirmDo(button){ if(button == "1" && url){ openInside(url+'&imei='+imei); } } } } else { if (e.coldstart) { // } else { // } } } Of course in many cases this is not a effective solution, because I should filter the message before she leaves the server. For instance: I want to show a notification to all my customers under 40 y.o. According to this: http://aerogear.org/docs/specs/aerogear-server-push/ ...I can use "alias", "categories", etc., to perform such segmentation; but I don't know how to send / store (?) that information into the server. Another issue related to this one: is there some way I have to control over the alert on the notification tray? That is: make it show only if a given criteria is matched? Thanks Miguel