How to get $count into a tile - sapui5

Question

I am an ABAP developer who is just trying to take the first steps in SAPUI5/Fiori.
So my very simple task is to create a fiori app with a single tile to show the number of EDIDC records.
View1.controller.js:
sap.ui.define([
"sap/ui/core/mvc/Controller"
], function (Controller) {
"use strict";
return Controller.extend("QuickStartApplication.controller.View1", {
onGetValue: function ( ) {
var oTileValue = this.getView().byId("tile1");
this.getModel().read("/EDIDCSet/$count", {
success: $.proxy(function (oEvent, oResponse) {
// var count = Number(oResponse.body);
var count = "1337";
oTileValue.setValue(count);
}, this)
});
}
});
});
View1.view.xml:
<mvc:View xmlns:html="http://www.w3.org/1999/xhtml" xmlns:mvc="sap.ui.core.mvc" xmlns="sap.m"
controllerName="QuickStartApplication.controller.View1">
<App id="idAppControl">
<pages>
<Page xmlns="sap.m" id="pageId" title="TileTest" floatingFooter="true">
<content>
<Button xmlns="sap.m" text="Button" id="button0" press=".onGetValue"/>
<GenericTile class="sapUiTinyMarginBegin sapUiTinyMarginTop tileLayout" header="Country-Specific Profit Margin" subheader="Expenses"
press="press" id="tile1">
<TileContent unit="EUR" footer="Current Quarter">
<NumericContent scale="M" value="1000" valueColor="Error" indicator="Up" withMargin="false"/>
</TileContent>
</GenericTile>
</content>
</Page>
</pages>
</App>
</mvc:View>
As you can see, I can't even pass the value "1337" that I hardcoded.

Answer 1

​My first mistake was to adress the tile and not the numeric content of the file. So first, I gave the ID to the numeric content:
​
<NumericContent scale="M" value="" valueColor="Error" indicator="Up" withMargin="false" id="num1"/>
​
​Then, I've adjusted the line, to access the object:
var oTileValue = this.getView().byId("num1");
​The last thing I learned was, that the model is connected to the view. So to access this, I changed the line to:
​this.getView().getModel().read("/EDIDCSet/$count", {
​Now I can call my function onGetValue and it's working.