Listmodel and BarSeries

[filipdns]

Hello,

I need to have bar graphic with X axis = year from first record to this year and Y = simulate value (Y value are for test before to have real value).

I have ListModel below:

    function yearinterval()
    {
        //format date-> "yyyy-mm-dd"
        var firstyear= new Date(JS.dbolderflight().date_etape).getFullYear()
        var lastyear= new Date().getFullYear()
        var deltayear=parseInt(lastyear)-parseInt(firstyear)
        return {firstyear:firstyear,deltayear:deltayear}
    }
    ListModel {
        id: yearlistModel
    }
    Component.onCompleted: {
        for (var i = 0 ; i < yearinterval().deltayear+1;i+=1 ) {
            yearlistModel.append({"name": parseInt(yearinterval().firstyear)+i, "index": i})
        }
    }

the "JS.dbolderflight().date_etape" is js script to get the first record date from SQLite database.

How can I get the data from the ListModel to StringList to be able to use it on :

    Item {
        anchors.fill:parent
        ChartView {
            title: "Bar series"
            anchors.fill: parent
            //legend.alignment: Qt.AlignBottom
            antialiasing: true

            BarSeries {
                id: mySeries
                axisX: BarCategoryAxis { categories: [yearlistModel]}
                BarSet { label: "Jours de disponibilité"; values: [2, 2, 3, 4, 5, 6] }
                BarSet { label: "Jours de vol"; values: [5, 1, 2, 4, 1, 7] }
                BarSet { label: "Jours de visite"; values: [3, 5, 8, 13, 5, 8] }
                BarSet { label: "Jours de panne"; values: [10, 5, 2, 18, 1, 7] }
            }
        }
    }

to have years display on X axis?

Thank you for your help