[HEHLP] Get values from object inside object in a Json file

[Elmehdi]

Hello, I have a Json file like this :

    {"country":"Morocco",
    
        "province":["mainland"],
    
        "timeline":{"cases":{"5/24/20":7433,
    
        "5/25/20":7532,
    
        "5/26/20":7577,
    
        "6/22/20":10172},
    
        "deaths":{"5/24/20":199,
    
        "5/25/20":200,
    
        "5/26/20":202,
    
        "6/22/20":214},
    
        "recovered":{"5/24/20":4703,
    
        "5/25/20":4774,
    
        "5/26/20":4881,
    
        "6/22/20":8366}}}

And I want to store the values that are in front of the dates in a Vector; for example I have | "6/22/20":8366 | I want to store 8366 in the vector. I'm really not good with the parsing of the Json files. This is what I did but didn't work, what have I done wrong or what is the correct way to do it?

QJsonObject j_obj = json_doc.object();
QJsonValue val, inner_val;
 QVector<double> y(7);
       
 for(auto jsonObj : j_obj)
        {
           val = jsonObj.toObject().value("cases");
           if(!val.isUndefined())
            {
               for (auto jsobj : jsonObj.toObject())
               {
                   inner_val = jsobj.toObject().value("");
                   y[i] = inner_val.toInt();
                   qDebug() << y[i];
                   i++;
               }
            }
           val = 0;
        }

[Bonnie]

QJsonObject timeline = j_obj["timeline"].toObject();
QJsonObject cases = timeline["cases"].toObject();
for (auto jsobj : cases)
{
    y[i] = jsobj.toInt();
    qDebug() << "GOOOOOOOOOOOODD" << y[i];
    i++;
}

[jsulm]

@Elmehdi said in [HEHLP] Get values from object inside object in a Json file:

"cases"

cases is inside "timeline", so you first need to search for "timeline"...

[Elmehdi]

@jsulm Hello!

you said I should search for the timeline then search for cases. Can you help me about that, this is what I did but doesn't seem to work

QJsonObject timeline = j_obj["timeline"].toObject();
for(auto jsonObj : timeline)
{
qDebug() << "aisaiisisaiasiasiass" << y[i];
QJsonObject cases = timeline["cases"].toObject();
 for (auto jsobj : cases)
  {
    inner_val = jsobj.toObject().value("5/24/20");
    y[i] = inner_val.toInt();
   qDebug() << "GOOOOOOOOOOOODD" << y[i];
   i++;
  }
}

[JonB]

@Elmehdi
It looks about right, except that obviously it would only ever match the one "5/24/20" key.

but doesn't seem to work

You should say what "doesn't seem to work" means. I see some qDebug(), and you could probably do with some more, you should say whether they are hit, what the output is, so that we can match to the input.

[Elmehdi]

@JonB Sorry I don't understand you well,

• obviously it would only ever match the one "5/24/20" key
  But it never prints the value of it.
  Apparently it hit them all since the qDebug is called exactly 4 times the number of the dates but it didn't print the value.

[Bonnie]

QJsonObject timeline = j_obj["timeline"].toObject();
QJsonObject cases = timeline["cases"].toObject();
for (auto jsobj : cases)
{
    y[i] = jsobj.toInt();
    qDebug() << "GOOOOOOOOOOOODD" << y[i];
    i++;
}

[Elmehdi]

@Bonnie Thank you verry much my dear friend that was exactly what I'm looking for.