Move items in a QSortFilterProxyModel

[VRonin]

Can you post the implementation?

[JonB]

@Valerian
I now realise you got your code from https://stackoverflow.com/a/43683619/489865, didn't you? Wasn't actually confirmed to be correct solution. I still don't get where the + 2 comes from, but there you are.

IF @VRonin does not sort you out (so to speak :) ), I don't know, but maybe you should have a careful read of https://stackoverflow.com/a/12254935/489865. Not sure whether the following might affect you:

(2) Yes if you don't use sorting, just filtering. Qt in such case erases entire internal mapping and re-builds it from scratch so the data will be just as they appear in source model

[Valerian]

@VRonin said in Move items in a QSortFilterProxyModel:

Can you post the implementation?

I have already posted the implementation of the QSortFilterProxyModel. Are you seeking the implementation of the QAbstractTableModel?

[VRonin]

@VRonin said in Move items in a QSortFilterProxyModel:

Did you reimplement moveRow?

@Valerian said in Move items in a QSortFilterProxyModel:

I re-implemeted it in the QSortFilterProxyModel.

I don't see an implementation of FilterProxyModel::moveRow (or rather FilterProxyModel::moveRows) above

[Valerian]

@JonB said in Move items in a QSortFilterProxyModel:

I now realise you got your code from https://stackoverflow.com/a/43683619/489865, didn't you? Wasn't actually confirmed to be correct solution. I still don't get where the + 2 comes from, but there you are.

Yes I did pick it from there.

Thanks for the other stackflow link. Will have a read on that.

[Valerian]

@VRonin said in Move items in a QSortFilterProxyModel:

I don't see an implementation of FilterProxyModel::moveRow (or rather FilterProxyModel::moveRows) above

I haven't implement that. Not sure if I need to write that

[VRonin]

@VRonin said in Move items in a QSortFilterProxyModel:

Did you reimplement moveRow?

@Valerian said in Move items in a QSortFilterProxyModel:

I re-implemeted it in the QSortFilterProxyModel

As I mentioned, the default implementation does nothing and returns false so calling it is pointless unless you reimplement it

[JonB]

@VRonin [I don't get what's happening in the pic? :( ]

[VRonin]

@JonB https://www.youtube.com/watch?v=xXdD9yFZGv8

[JonB]

@VRonin
Dear Mr VRonin,

Thank you for that link. I opened it from Firefox from the Ubuntu I sit inside as a VirtualBox under Windows Server.

The video started, and then froze. My whole Linux guest box froze. Nothing other than a Windows TaskMan kill of the whole VBox was possible, killing my session and any work I had done but not committed!

Please remind me never to risk clicking on such a link again! :) I shall have to manage without knowing the meaning of the pic now...

[VRonin]

@JonB Sorry mate, it was just a stupid YouTube video of a guy saying carrots are good for eyesight, another guy shoving 2 carrots in his eyes and then the image above

[Valerian]

@VRonin Thank you for your feedback. Will re-implement those functions and try

[JonB]

@VRonin Ohhhhh, I would never have figured that's what it was! All OK :)

[fanyha]

hi, can anybody tell me how to implement moveRows() for the class derived from QSortFilterProxyModel:
moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild)

it looks like we need to exchange the proxy indexes, but we can't access to the private members in the subclass