Chat

The code

// Called when new records are inserted into the database
db.chat.on('POST', function(err, mess) {
	var line = $("<div>").text(mess.data.oneliner + " " + mess.data._id);
	line.hide();
	$("#messages").prepend(line);
	line.toggle("scale")
});

// Called when a record is changed in the database
db.chat.on('PUT', function(err, mess) {
	db.chat.find({"_id": mess.data}, {}, function(err, updatedline){
	    $("#"+mess.data).text(updatedline[0].oneliner);
	});
});

// Called when one or more record is deleted in the database
db.chat.on('DELETE', function(err, mess) {
    _.each(mess.data, function(oneid){
        $("#"+oneid).remove();    
    });
});

// The initial setup and connection the a realtime database
var apikey = "577ed0a645c8ac6e5b035fbe";
var db = null; 
try {
    db = new restdb(apikey, {realtime: true});
    $("#status").text("Ok, got the api").addClass("online");
} catch (ex) {
    $("#status").text("Error loading jsapi");
}

// Called when a user types something in the input field
$("#oneliner").keyup(function(e){
	if(e.keyCode == 13)
	{
		var payload = {"oneliner": $(this).val()};
		$(this).val("");
		var newline = new db.chat(payload);
		newline.save();
	}
});

// Called when a connection is established
db.on("CONNECT", function() {
	$("#status").addClass("online").removeClass("offline").text("online");
	$("#messages").empty();
	db.chat.find({}, {"$max": 100,"$orderby": {"_created": -1}}, function(err, lines){
	    _.each(lines, function(aline){
	        $("#messages").append($("<div>").text(aline.oneliner));        
	    });
	})
});

//Called when the connection is lost, unplug your wifi to see this
db.on("DISCONNECT", function() {
	console.log("Realtime closed: ");
	$("#status").addClass("online").addClass("offline").text("off");
});

// Called after a lost connection is regained
db.on("RECONNECT", function() {
	$("#status").addClass("online").removeClass("offline").text("Back again");
});