converting list to JSON - performance issue.

[Mathan]

Hi,

I want to pass the PortalSearchItems list to be passed from qml to Cpp. Eventhough, I can get the result, app got just killed, when this code executes. I assume performance issue.

Code Snippet: main.qml
--------------------------------------

var varidPortalSearchItemsCount = idPortalSearchItems.totalResults;
 
var vartextJson = "";
 
                for (var ii = 0; ii <= varidPortalSearchItemsCount -1 ;ii++)
                {
                    vartextJson += '{"title":"'+ idPortalSearchItems.results[ii].title +'"
                                    ,"owner":"'+ idPortalSearchItems.results[ii].owner +'"
                                    ,"url":"'+ idPortalSearchItems.results[ii].url +'"
                                    ,"itemId":"'+ idPortalSearchItems.results[ii].itemId +'"
                                    }' + ',';
                }
 
 
                vartextJson = vartextJson.substring(0, vartextJson.length-1) + ']';
                vartextJson = '[' + vartextJson;
                var varJsonString =JSON.parse(vartextJson);
                objHomeController.eveWriteXML(varJsonString);

var varidPortalSearchItemsCount = idPortalSearchItems.totalResults;
                
var vartextJson = "";

                for (var ii = 0; ii <= varidPortalSearchItemsCount -1 ;ii++)
                {
                    vartextJson += '{"title":"'+ idPortalSearchItems.results[ii].title +'"
                                    ,"owner":"'+ idPortalSearchItems.results[ii].owner +'"
                                    ,"url":"'+ idPortalSearchItems.results[ii].url +'"
                                    ,"itemId":"'+ idPortalSearchItems.results[ii].itemId +'"
                                    }' + ',';
                }


                vartextJson = vartextJson.substring(0, vartextJson.length-1) + ']';
                vartextJson = '[' + vartextJson;
                var varJsonString =JSON.parse(vartextJson);
                objHomeController.eveWriteXML(varJsonString);

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HomeController.h
--------------------------

Q_INVOKABLE bool eveWriteXML(const QJsonObject &pqvarPortalItemResult);

Q_INVOKABLE bool eveWriteXML(const QJsonObject &pqvarPortalItemResult);

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HomeController.cpp
--------------------------

bool HomeController::eveWriteXML(const QJsonObject &pqvarPortalItemResult)
{
 
    QVariantMap jsonQVariantMap = pqvarPortalItemResult.toVariantMap();
 
 
 
        for(QVariantMap::const_iterator iter = jsonQVariantMap.begin(); iter != jsonQVariantMap.end(); ++iter) {
 
        QVariant objQVariant = iter.key();
        QVariant objQVariant1 = iter.value();
 
        QString strTitleValue  =  objQVariant1.toMap().values("title").value(0).toString();
        QString strUrlValue    =  objQVariant1.toMap().values("url").value(0).toString();
        QString strOwnerValue  =  objQVariant1.toMap().values("owner").value(0).toString();
        QString strItemIdValue =  objQVariant1.toMap().values("itemId").value(0).toString();
 
}

bool HomeController::eveWriteXML(const QJsonObject &pqvarPortalItemResult)
{

    QVariantMap jsonQVariantMap = pqvarPortalItemResult.toVariantMap();



        for(QVariantMap::const_iterator iter = jsonQVariantMap.begin(); iter != jsonQVariantMap.end(); ++iter) {

        QVariant objQVariant = iter.key();
        QVariant objQVariant1 = iter.value();

        QString strTitleValue  =  objQVariant1.toMap().values("title").value(0).toString();
        QString strUrlValue    =  objQVariant1.toMap().values("url").value(0).toString();
        QString strOwnerValue  =  objQVariant1.toMap().values("owner").value(0).toString();
        QString strItemIdValue =  objQVariant1.toMap().values("itemId").value(0).toString();

}

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Thanks In advance.