Breeze.js query does not update knockout view - data-binding

Question

I am querying data via breeze.js which works fine the first time. The second time the view isn't updated.
html
<a id="linkQDate">Order by Newest</a>
<a id="linkQScore">Order by Score</a>
<div id="questionWrapper">
<ul data-bind="foreach: results">
<li>
<strong><span data-bind="text: Score"></span></strong>
<span data-bind="text: Titel"></span>
</li>
</ul>
</DIV>
js
$(document).ready(function () {
var manager = new breeze.EntityManager('/breeze/dbentities');
var isApplied = false;
var dmodel;
$("#linkQDate").click(function () {
var query = breeze.EntityQuery.from("Questions").orderBy("Date");
manager.executeQuery(query).then(querySucceeded);
function querySucceeded(data) {
dmodel = data;
if (!isApplied) {
ko.applyBindings(dmodel, $("#questionWrapper")[0]);
isApplied = true;
}
}
});
$("#linkQScore").click(function () {
var query = breeze.EntityQuery.from("Questions").orderBy("Score");
manager.executeQuery(query).then(querySucceeded);
function querySucceeded(data) {
dmodel = data;
if (!isApplied) {
ko.applyBindings(dmodel, $("#questionWrapper")[0]);
isApplied = true;
}
}
});
});

Answer 1

If you just using plain JS objects it will not work. Because it does not know when underlying data changes. Use mapping plugin for this to work:
$(document).ready(function () {
var manager = new breeze.EntityManager('/breeze/dbentities');
var isApplied = false;
var dmodel;
function querySucceeded(data) {
if (!isApplied) {
dmodel = ko.mapping.fromJS(data);
ko.applyBindings(dmodel, $("#questionWrapper")[0]);
isApplied = true;
} else {
ko.mapping.fromJS(data, dmodel);
}
}
$("#linkQDate").click(function () {
var query = breeze.EntityQuery.from("Questions").orderBy("Date");
manager.executeQuery(query).then(querySucceeded);
});
$("#linkQScore").click(function () {
var query = breeze.EntityQuery.from("Questions").orderBy("Score");
});
});

Answer 2

Working code from Tomas without mappings. It is much faster:
$(document).ready(function () {
var manager = new breeze.EntityManager('/breeze/dbentities');
var isApplied = false;
var dmodel = { results: ko.observableArray() };
function queryFailed(data) {
console.log(data);
}
function querySucceeded(data) {
if (!isApplied) {
for (var i = 0; i < data.results.length; i++) {
dmodel.results.push(data.results[i]);
}
ko.applyBindings(dmodel, $("#questionWrapper")[0]);
isApplied = true;
} else {
dmodel.results.removeAll();
for (var i = 0; i < data.results.length; i++) {
dmodel.results.push(data.results[i]);
}
}
}
$("#linkQDate").click(function () {
var query = breeze.EntityQuery.from("Questions").orderBy("Date");
manager.executeQuery(query).then(querySucceeded).fail(queryFailed);;
});
$("#linkQScore").click(function () {
var query = breeze.EntityQuery.from("Questions").orderBy("Score");
manager.executeQuery(query).then(querySucceeded).fail(queryFailed);;
});
});