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Native Development

Regular Contributor
Posts: 97
Registered: ‎04-19-2012
My Device: BB Torch-9800
My Carrier: *

GroupDataModel is not working on data model?

Hi All,


While displaying GroupDataModel on ListView is not displaying data.

Below is my code.


 * GetLeadsHttp.h
 *  Created on: 19-Mar-2013
 *      Author: dell


#include <bb/data/JsonDataAccess>
#include <QString>
#include <QtCore/QObject>
#include <bb/cascades/GroupDataModel>
#include <bb/cascades/QListDataModel>
#include <bb/cascades/ListView>
#include <bb/cascades/AbstractPane>
#include <bb/cascades/ListView>
#include <bb/cascades/ActivityIndicator>
#include <QNetworkAccessManager>
#include <bb/system/InvokeManager>
#include <bb/system/InvokeRequest>
#include <bb/system/InvokeTargetReply>
#include <bb/cascades/Page>
#include <bb/cascades/TextField>
using namespace bb::data;
using namespace bb::cascades;
class QNetworkAccessManager;

class GetLeadsHttp: public QObject {

	Q_PROPERTY(bb::cascades::GroupDataModel *dataModel READ dataModel CONSTANT);
	GetLeadsHttp(QObject* parent = 0);

public Q_SLOTS:
	void post(const QString &body, const QString &token);
	//void leadCall(const QString &body);

private Q_SLOTS:

	void onGetReply();
	void onInvokeResult();
	//void filterDataModel(QString filterText);


	bb::cascades::GroupDataModel* dataModel() const;

	ActivityIndicator *mActivityIndicator;
	QDeclarativePropertyMap* propertyMap;
	bb::cascades::GroupDataModel* m_dataModel;
	bb::cascades::GroupDataModel* d_dataModel;
	ListView* leads_list;
	QListDataModel<QVariantMap>* listDataModel;
    Page* leadPage;
    TextField* txt_field;
	void setIndicator(ActivityIndicator *indicator);
	// bb::system::InvokeManager *m_invokeManager;
    bb::system::InvokeTargetReply *_invokeTargetReply;


	QNetworkAccessManager* m_networkAccessManager;

#endif /* GETLEADSHTTP_H_ */



bb::cascades::GroupDataModel* GetLeadsHttp::dataModel() const
    return m_dataModel;
void GetLeadsHttp::post(const QString &body,const QString &auth_token)

	m_dataModel=new GroupDataModel(QStringList() << "Firstname"<< "Lastname" << "Company" << "NextFollowUpdate" << "leadRating" <<"SurveyAnswer3"
			<<"SurveyAnswer2" <<"SurveyAnswer1" <<"state" <<"ScanTime" <<"RecordId" <<"Phone" <<"Notes" <<"FollowupTypes" <<"eventTile" <<"EventId" <<"Email" <<"Designation"
			<<"City" <<"Barcodeid" <<"Barcode");

    const QUrl url("https://cs5.salesforce.com/services/apexrest/getLeads?");

    QNetworkRequest request(url);

   // request.setHeader(QNetworkRequest::ContentTypeHeader, "text/plain");
    request.setRawHeader(QString("Authorization").toUtf8(),QString("OAuth "+auth_token).toUtf8());

    if (AppSettings::isUsingHttps()) {

        QSslConfiguration config = request.sslConfiguration();

    QNetworkReply* reply = m_networkAccessManager->post(request, body.toAscii());
    connect(reply, SIGNAL(finished()), this, SLOT(onGetReply()));

void GetLeadsHttp::onGetReply()
    QNetworkReply* reply = qobject_cast<QNetworkReply*>(sender());

    QString response;
    JsonDataAccess jda;

    if (reply) {
        if (reply->error() == QNetworkReply::NoError) {
            const int available = reply->bytesAvailable();
            if (available > 0) {
                const QByteArray buffer(reply->readAll());
                response = QString::fromUtf8(buffer);
        } else {
            response = tr("Error: %1 status: %2").arg(reply->errorString(), reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toString());
            qDebug() << response;


    if (response.trimmed().isEmpty()) {
        response = tr("Unable to retrieve post response");

    qDebug() << "Get Leads data..."+response;
    QVariantList lobbyJson = jda.loadFromBuffer(response).value<QVariantList>();
   qDebug() << "%%%%%%%%%%% 1 %%%%%%%%";
  for(int i=0; i<lobbyJson.size(); i++ ){

	   QVariantMap postFeed = lobbyJson.at(i).toMap();



import bb.cascades 1.0
import "Common"
import Network.PostHttp 1.0
import Network.GetHttp 1.0
import Network.GetLeadsHttp 1.0
import "controls"
import my.library 1.0
import bb.system 1.0

// the third tab has its own pane which will be automatically
// set as the active pane when the tab becomes active

Page {
    id: defaultPane
    actions: [
        // An action item that calls the C++ function that retrieves
        // the contact list
        ActionItem {
            title: "Scan"
            onTriggered: leadValue.post("EventId=&UserId=" + _httpsample.getUserID, _httpsample.getAccessToken)
            ActionBar.placement: ActionBarPlacement.OnBar
            imageSource: "asset:///images/scan_unfocus_mode.png"
        ActionItem {
            title: "Leads"
            ActionBar.placement: ActionBarPlacement.OnBar
            imageSource: "asset:///images/lead_unfocus_mode.png"
    Container {
        id: leadContainer
        background: Color.create("#F4F4EE")
        layout: StackLayout {
        Container {
            background: Color.create("#0A6FA6")
            preferredWidth: 768.0
            preferredHeight: 110
            // maxHeight: 140
            topPadding: 10.0
            layout: DockLayout {
            Container {
                preferredWidth: 220
                leftPadding: 20
                topPadding: 20
                horizontalAlignment: HorizontalAlignment.Left
                Label {
                    id: leadCount
                    text: ""
                    textStyle.fontSize: FontSize.Small
                    textStyle.color: Color.White
                    textStyle.fontWeight: FontWeight.Bold

                    //textStyle.textAlign: TextAlign.Right
            Container {
                // preferredWidth: 0
                // preferredHeight: 0
                // horizontalAlignment: HorizontalAlignment.Left
                leftPadding: 270.0
                //topPadding: 10
                //maxHeight: 50.0
                TextField {
                    id: filterList
                    objectName: "txtSrch"
                    hintText: "Search Lead"
                    textStyle.fontSize: FontSize.XSmall
                    preferredWidth: 480.0
                    horizontalAlignment: HorizontalAlignment.Center
                    onTextChanging: {
        // A list that has two list item components, one for a header
        // and one for contact names. The list has an object name so
        // that we can set the data model from C++.
        Container {
            id: containerList

            // topPadding: 20.0
           // background: Color.create("#F4F4EE")
            topPadding: 250.0
            ActivityIndicator {
              id: leadProgressbar
             //objectName: "indicator1"
                verticalAlignment: VerticalAlignment.Center
                horizontalAlignment: HorizontalAlignment.Center
                preferredWidth: 200
                preferredHeight: 200
               // running: true
             //onStarted: leadValue.post("EventId=&UserId=" + _httpsample.getUserID, _httpsample.getAccessToken)
                // onStopped: containerList.topPadding = 0;
            ListView {
                dataModel: leadValue.dataModel
                listItemComponents: ListItemComponent {
                    type: "item"

                    StandardListItem {
                        title: qsTr("%1, %2").arg(ListItemData.Firstname).arg(ListItemData.Lastname)
        // The activity indicator has an object name set so that
        // we can start and stop it from C++
    attachedObjects: [
        GetLeadsHttp {
            id: leadValue
        ComponentDefinition {
            id: leadDetails
            source: "LeadDetailsPage.qml"
        SystemDialog {
            id: emailValidation
            title: "Alert!"
            body: "Please enter a valid Email Id"

 While click on scan action i am calling post() method of GetLeadHttp, everything is looking fine but data is not displaying on list view. Please suggest me where i am wrong.


New Developer
Posts: 12
Registered: ‎09-23-2008
My Device: Dev Alpha B
My Carrier: Telcel

Re: GroupDataModel is not working on data model?


I think you should check the Callapizza example on BlackBerry GitHub. The example use a list on qml and the data model con C++.


this is the link for the source code.





Regular Contributor
Posts: 97
Registered: ‎04-19-2012
My Device: BB Torch-9800
My Carrier: *

Re: GroupDataModel is not working on data model?

Thanks for reply, right now i am following AddressBook sample on Blackberry GitHub.