QDom: Edit a child node?

[nwarrenfl]

Hi.

I am developing a class that handles xml configuration files.
Now i have a function that gets an existing node and edits it, however i can't find the correct solution to get it working.

Here is my code:

void XfireGamesList::updateConfiguredGame(QString pName, QString pLaunchExe, QString pDetectExe)
{
	QDomElement game = getConfiguredGame(pName);
	QDomElement command = game.firstChildElement("command");
	QDomElement launch = command.firstChildElement("launch");
 
	qDebug() << launch.text();
	launch.setNodeValue("somevalue");
	qDebug() << launch.text();
}

void XfireGamesList::updateConfiguredGame(QString pName, QString pLaunchExe, QString pDetectExe)
{
	QDomElement game = getConfiguredGame(pName);
	QDomElement command = game.firstChildElement("command");
	QDomElement launch = command.firstChildElement("launch");

	qDebug() << launch.text();
	launch.setNodeValue("somevalue");
	qDebug() << launch.text();
}

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getConfiguredGame() returns a QDomElement representing this node for example:

<game name="The name of a certain game">
  <command>
   <launch>SOME_PATH</launch>
   <detect>SOME_PATH</detect>
  </command>
 </game>

<game name="The name of a certain game">
  <command>
   <launch>SOME_PATH</launch>
   <detect>SOME_PATH</detect>
  </command>
 </game>

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The function isn't able to edit the node values, and the debugging calls outputs "SOME_PATH" twice, so the node should be correct since it returns the correct values, but editing fails.

Does someone know why?
Thanks in advance.

[Lykurg]

You have to modify QDomText explicit.

[nwarrenfl]

You have to modify QDomText explicit.

I tried this:

launch.toText().setData("somevalue");

launch.toText().setData("somevalue");

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But this didn't work either, could you explain me the correct way?

[Lykurg]

Well, that could not work...

QString xml = "<game><command><launch>SOME_PATH</launch><detect>SOME_PATH</detect></command></game>";
    QDomDocument doc;
    doc.setContent(xml);
    QDomElement game = doc.firstChildElement("game");
    QDomElement command = game.firstChildElement("command");
    QDomElement launch = command.firstChildElement("launch");
    qWarning() << launch.text() << launch.childNodes().count();
 
    QDomText text = doc.createTextNode("foo");
    launch.replaceChild(text, launch.firstChild());
    qWarning() << launch.text() << launch.childNodes().count();

QString xml = "<game><command><launch>SOME_PATH</launch><detect>SOME_PATH</detect></command></game>";
    QDomDocument doc;
    doc.setContent(xml);
    QDomElement game = doc.firstChildElement("game");
    QDomElement command = game.firstChildElement("command");
    QDomElement launch = command.firstChildElement("launch");
    qWarning() << launch.text() << launch.childNodes().count();

    QDomText text = doc.createTextNode("foo");
    launch.replaceChild(text, launch.firstChild());
    qWarning() << launch.text() << launch.childNodes().count();

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Be aware that you check if the element has a text node!