I am building an app that gives students the ability to see their schedule which is created by the admin. Now each student has a group_id. I want to make the schedule update in real time so I applied this tutorial http://www.kodeinfo.com/post/realtime-app-using-laravel-nodejs-angularjs-redis . here what I've done so far.
Event Handler:
namespace echooly\Handlers;
use Redis;
use Response;
class StudentScheduleUpdatedEventHandler
{
CONST EVENT = 'schedule.update';
CONST CHANNEL = 'schedule.update';
public function handle($data)
{
$redis = Redis::connection();
$redis->publish(self::CHANNEL, $data);
}
}
AdministrationController (Event CRUD Method)
//Create an event
public function createEvent()
{
if(Auth::Admin()->check()) {
$eventDetail = Input::all();
$event = Planing::create($eventDetail);
$event->save();
Event::fire(\echooly\Handlers\StudentScheduleUpdatedEventHandler::EVENT, array($event));
} else {
return Redirect::intended('/');
}
}
So Basically I am pushing the latest created event.
Node Server:
var express = require('express'),
http = require('http'),
server = http.createServer(app);
var app = express();
const redis = require('redis');
const io = require('socket.io');
const client = redis.createClient();
server.listen(3000, 'localhost');
console.log("Listening.....");
io.listen(server).on('connection', function(client) {
const redisClient = redis.createClient();
redisClient.subscribe('schedule.update');
console.log("Redis server running.....");
redisClient.on("message", function(channel, message) {
client.emit(channel, message);
});
client.on("getGroup", function(groupId) {
console.log(groupId);
});
client.on('disconnect', function() {
redisClient.quit();
});
});
Angular Controller:
studentSocket.on('schedule.update', function (data) {
$scope.events.length = 0;
$scope.populatePlan(JSON.parse(data));
inform.add('New Course Added');
});
The issue is how can I filter the sent data to a specific student.
- Something is telling me that we can make a dynamic channel with redis? sadly I don't have any experience with it.
- I tried to fire the event when I fetch the data by the student group id this ends up making the student see a new schedule whenever the group id changes.
//Show Planing by group
public function showPlaningsByGroup($id){
if(Auth::Admin()->check()){
$planing = Planing::with('Course')->where('group_id',$id)->get();
Event::fire(\echooly\Handlers\StudentScheduleUpdatedEventHandler::EVENT, array($planing));
return Response::json($planing);
}
}
I hope I was clear enough I really hope to get some answers thanks.
