Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Neumann, Andreas
Hi Didier, Is this for historisation purposes? If yes, I would look into database solutions to do historization. The SQL-MM standard has this as a built-in tool set for databases, however, PostgreSQL does not implement this part of the SQL specification (I believe the latest versions of SQL

[Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread didier peeters
Hello, I would like to find the best solution to the following case: in QGis, when editing a polygon (splitting it in 2 parts) I need to save the original shape, in order to keep the different steps of its evolution; this operation is likely to be repeated several times. The solution I found

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread didier peeters
Hello Andreas, yes it’s for some ‘historisation', more precisely to make a filiation, and yes I certainly will use triggers in PostGIS. But I wanted to avoid confusion between different kind of edition operations that I’m not currently foreseeing; I’m not sure it will always be easy to

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Neumann, Andreas
Hi Didier, I don't think that anyone is working on a client-side historisation option in QGIS. And there wasn't much demand for that in the past, since most serious GIS data resides in databases. Andreas On 2015-07-20 09:45, didier peeters wrote: Hello Andreas, yes it's for some

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Matthias Kuhn
Hi, I remember geogig (formerly geogit) offers promising concepts for filebased spatial data management with historization and branching. Unfortunately I don't know the current status of the project and the progress of integration in QGIS. Matthias On 07/20/2015 11:25 AM, Neumann, Andreas

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Enrico Ferreguti
mmm... sorry, debug infos left in the code simply remove line 142 (the last) of file /Users/didier/.qgis2/python/ plugins/layerVersion/layerversion.py with a text editor and reload the plugin. Regards. Enrico 2015-07-20 13:05 GMT+02:00 Matthias Kuhn matth...@opengis.ch: Hi, I remember

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Neumann, Andreas
Hi, As far as I know, the geogit project was canceled by Boundless. They did not see enough customer demand to finish it. It is a pity, as the project was relatively close to completion. Andreas On 2015-07-20 13:05, Matthias Kuhn wrote: Hi, I remember geogig (formerly geogit)

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Matthias Kuhn
Yeah, I remember that as well. But the boundless project page redirects here: https://github.com/locationtech/geogig and there is still some recent activity, so maybe it's not completely dead? Matthias On 07/20/2015 01:28 PM, Neumann, Andreas wrote: Hi, As far as I know, the geogit project

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread didier peeters
I’m facing a strange behavior now: I tested the layerVersion plugin, at first it seemed to work fine and effectively bring back the previous polygon’s shape. But then a confusion appeared between the polygons : when moved one, it would ‘disappear’ and another would move as well and after

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread Enrico Ferreguti
It's difficult to realize what happens from your description. The plugin is very simple, it saves all buffer and restores them checking data consistency, so the issues you report makes me think it could happen a featureId mismatch. Perhaps you are trying to restore a version on a already modified

Re: [Qgis-user] Saving a polygon in QGis before to edit it

2015-07-20 Thread didier peeters
Enrico, I will try to see what’s going on and if I find some evidences I will put it in the issue tracker. Didier Le 20 juil. 2015 à 16:26, Enrico Ferreguti enrico...@gmail.com a écrit : It's difficult to realize what happens from your description. The plugin is very simple, it saves