Thanks for the info, Matthias. I'm using the development version of QGIS for the relations support. Looking forward to future updates!
Eric On Jan 27, 2014 5:40 PM, "Matthias Kuhn" <[email protected]> wrote: > Hi Eric, > > On Mon 27 Jan 2014 20:21:35 CET, Eric Goddard wrote: > > Hi all, > > And this is where I'm stuck. I can't find anything in the API docs > > about how to set the value-description pairs. Any help would be > > greatly appreciated! > > > > Thanks, > > Eric > > > > This was working in 1.8, but it's not working in 2.x releases (so far). > You may have heard of the update to "SIP API v2". Since we did this, Qt > objects are converted to python objects to make it more natural to use > for developers. Before that, you could just retrieve the existing > valuemap and edit it in place, because when you called > layer.valueMap(idx), you would receive a reference to the map QGIS > internally works with. However, the new SIP API converts the map you > receive to a native python dict and creates a copy of it. And if you > edit this copy, QGIS doesn't realize, that there are changes. > > So, in short: If you use 1.8, just edit the map you get back. If you > use 2.0, I don't think there is a possibility and there won't be one in > 2.2. However, for 2.4 there will be an update which will make this > possible again (with a new API). > > Regards > Matthias >
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