app/resources/qml/Components/RegistrationView.qml

import QtQuick 2.0
import QtQuick.Controls 2.4

DataListView {
    id: control

    property var listData: ({})

    model: listData[ root.listKey ] === undefined ? 0:listData[ root.listKey ].length

    delegate: ItemDelegate {
        id: partDel

        width: parent.width

        text: ""

        Label {
            anchors.fill: parent
            anchors.leftMargin: width * 0.05

            verticalAlignment: Text.AlignVCenter

            fontSizeMode: Text.Fit
            font.bold: true
            font.pixelSize: Math.abs( height * 0.4 )
            minimumPixelSize: height * 0.3

            elide: "ElideRight"

            text: control.getText(index)
        }
    }

    function getText(index){

        // ----------------------------
        // if we have registration data

        var fedName // federation name

        if(listData["federations"] !== undefined){
            // not an international competition -> get name of federation

            for(var i = 0; i < listData["federations"].length; i ++ ){
                //console.log("checking " + i + ": cat: " + parseInt(listData["categorys"][i]["GrpId"]) + " searched cat: " + root.catId)
                if(listData["federations"][i]["fed_id"] === listData[ root.listKey ][index]["reg_fed_id"]){
                    fedName = listData["federations"][i]["shortcut"]
                }
            }
        }
        else {
            // an international competition -> get nation

            fedName = listData[ root.listKey ][index]["nation"]
        }

        return listData[ "athletes" ][index]["firstname"] + " " + listData[ "athletes" ][index]["lastname"] + " (" + fedName + ")"
    }
}