Backend Api getSelections

[rbecher]

Hi,

is there any method to get the current selections of the app?

- Ralf

[#2 · Accepted solution]

Yes,

You can retrieve it with the getList method see https://help.qlik.com/sense/en-us/developer/index.html#../Subsystems/Workbench/Content/BuildingWebsi... for more information

[rbecher]

Is there another way to get the result during the paint function? It seems to be the callback is made asynchronously, receives result after end of paint..

[#4]

Hi, I had the same question and i found a solution.

in the javascript file, you have to include "qlik" in define function, then you can call to app using this method:

var app = qlik.currApp();

code will be like this:

define(["jquery","qlik"], function($, qlik) {

return {

           paint : function($element, layout) {

                 var app = qlik.currApp();

                 app.getList("CurrentSelections", function(data){

                   console.log(data);

                 });

}

}

[rbecher]

That's exactly what I've coded but callback function is called after paint!

[#6]

Yes, it is asynchronously, so, if it needs to paint something when the selected fields are ready, the logic to render HTML should be inside of callback function.

   app.getList("CurrentSelections", function(data){

                  rendeView(); // for example

                 });

[rbecher]

Understand, but why the paint function isn't called after the selected fields are ready? Would make more sense..

[#8]

Essentially what you are doing is creating/accessing a separate object that gets its own change notifications. your extension will still fire a paint when the selection changes.

[#9]

I used this to get the selected values during paint. You need to fetch all the entries in the field for it to work.

var selectedDates = qMatrix.filter(function(d) { return (d[0].qState == 'S') }).map(function(d) {
  return d[0].qNum
  });

[rbecher]

Thanks, Karl. But this helps only for getting the selections inside of the defined cube. I don't understand why the API is lacking such basic function to obtain information about the current selections of the application.