You have more information about why you can't copy QObject derived class here

Hi and welcome to devnet,

They index provides you the row/column of the clicked item, so you can request the data from the index of the id column and the same row that you just clicked.

Hope it helps

Sorry for the late reply, the page says that there's nothing to be found

Thanks for the heads up. I had no idea.

Since I tried to use a model and failed, I became curious. I have done one more example using this tutorial, and it went fine. Do you have any idea why is it complaining about my database not being open, when it clearly is, judging from the fact that my query worked fine.