I'll deal with the second part now, running code during an initialization.
If I've understood your email correctly, you want to run some code once and once only when your mashup application starts. If I've misunderstood, please let me know.
I don't think you need an onopen function because of the way JavaScript works with the api. Let's take a very simple example. Let's say I want an alert to appear once only when I start my web application. Here's a code snippet to show you how I did that:
require(["js/qlikview"], function (qlikview) {
var qvobjects = {};
qlikview.setOnError(function (error) {
alert(error.message);
});
require(["jquery", "jqueryui"], function ($) {
// callbacks
// open app and get objects
var app = qlikview.openApp("World business atlas.qvf", config);
$(".qvobject").each(function () {
var qvid = $(this).data("qvid");
app.getObject(this, qvid).then(function (object) {
qvobjects[qvid] = object;
});
});
alert("Calling this once!");
// Create Lists
// ------------
// Fill the country name list. We don't know a priori how long the list is, so we'll send a query and get
// the length from that query
app.createList(
{
"qDef": { "qFieldDefs": ["English short name"] },
"qInitialDataFetch": [{qTop: 0, qLeft: 0, qHeight: 1, qWidth: 1}]
},
...
The callbacks are called each time something changes in Qlik Sense, so for example my createList is called each time my list changes in Qlik Sense. BUT code that is not callback code is called once and once only. So my alert function is called only once.
I could replace my alert function with some code like this:
app.field("My country name").selectMatch("India", false);
app.field("My country name").selectMatch("China", false);
this would preselect China and India when my charts are shown.
You might need to be careful where in your code these lines appear, but hopefully I've explained the general idea.
In short, because of the way JavaScript works, you don't need an onopen function or anything like it.
If I haven't answered your question, please let me know.
Mike
