Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to * start by copying the polygon, * then edit it (split) * then pasting back the original one, * then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user [1] Links: -- [1] http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Saving a polygon in QGis before to edit it
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 is to start by copying the polygon, then edit it (split) then pasting back the original one, then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to start by copying the polygon, then edit it (split) then pasting back the original one, then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to * start by copying the polygon, * then edit it (split) * then pasting back the original one, * then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user [1] ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user [1] Links: -- [1] http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net mailto:a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to * start by copying the polygon, * then edit it (split) * then pasting back the original one, * then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to - start by copying the polygon, - then edit it (split) - then pasting back the original one, - then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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) 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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to * start by copying the polygon, * then edit it (split) * then pasting back the original one, * then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user [1] ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user [1] ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user [1] Links: -- [1] http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 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) 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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net mailto:a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to * start by copying the polygon, * then edit it (split) * then pasting back the original one, * then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 saving this only the second polygon had moved while the first one would ‘re-appear’ at its original place. When selecting a polygon, 2 more ones are selected as well, and when deleting ‘them’ (with the red garbage can, I use QGis 2.8.2) the first one disappears only. This behavior continues after having uninstalled LayerVersion and restarted QGis. Is this a bug generated by LayerVersion ? Has anybody seen this before ? My layer is provided by PostGis. Didier Le 20 juil. 2015 à 13:24, Enrico Ferreguti enrico...@gmail.com a écrit : 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 mailto:matth...@opengis.ch: 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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net mailto:a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to start by copying the polygon, then edit it (split) then pasting back the original one, then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 layer. Did you get some messages loading version file? Is it the same with non PostGis Layers? The plugin has been marked as experimental because it's not wide tested and I fear it could bring to data losses, so I ask you to contribute reporting the bug to the issue tracker ( https://github.com/enricofer/layerVersion/issues), providing all the informations (operational steps, sample datasets) needed to replicate the issue. Thanks. 2015-07-20 14:39 GMT+02:00 didier peeters dpeet...@ulb.ac.be: 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 saving this only the second polygon had moved while the first one would ‘re-appear’ at its original place. When selecting a polygon, 2 more ones are selected as well, and when deleting ‘them’ (with the red garbage can, I use QGis 2.8.2) the first one disappears only. This behavior continues after having uninstalled LayerVersion and restarted QGis. Is this a bug generated by LayerVersion ? Has anybody seen this before ? My layer is provided by PostGis. Didier Le 20 juil. 2015 à 13:24, Enrico Ferreguti enrico...@gmail.com a écrit : 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 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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to - start by copying the polygon, - then edit it (split) - then pasting back the original one, - then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Saving a polygon in QGis before to edit it
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 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 layer. Did you get some messages loading version file? Is it the same with non PostGis Layers? The plugin has been marked as experimental because it's not wide tested and I fear it could bring to data losses, so I ask you to contribute reporting the bug to the issue tracker (https://github.com/enricofer/layerVersion/issues https://github.com/enricofer/layerVersion/issues), providing all the informations (operational steps, sample datasets) needed to replicate the issue. Thanks. 2015-07-20 14:39 GMT+02:00 didier peeters dpeet...@ulb.ac.be mailto:dpeet...@ulb.ac.be: 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 saving this only the second polygon had moved while the first one would ‘re-appear’ at its original place. When selecting a polygon, 2 more ones are selected as well, and when deleting ‘them’ (with the red garbage can, I use QGis 2.8.2) the first one disappears only. This behavior continues after having uninstalled LayerVersion and restarted QGis. Is this a bug generated by LayerVersion ? Has anybody seen this before ? My layer is provided by PostGis. Didier Le 20 juil. 2015 à 13:24, Enrico Ferreguti enrico...@gmail.com mailto:enrico...@gmail.com a écrit : 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 mailto:matth...@opengis.ch: 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 wrote: 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 '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 distinct this specific action from others. And I thought that it might also be interesting outside of the database world, to have that edit and preserve operation. Didier Le 20 juil. 2015 à 09:10, Neumann, Andreas a.neum...@carto.net mailto:a.neum...@carto.net a écrit : 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 server and Oracle 12 does). However, you can simulate the same in Postgis, using triggers and rules. Andreas On 2015-07-20 08:00, didier peeters wrote: 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 is to start by copying the polygon, then edit it (split) then pasting back the original one, then adjust and update the attributes of the 2 new polygons. Is there a less tricky way to achieve this ? If not it would be nice to have an option in the save dialog (with a default behaviour set in the Settings), and I would file a feature request. Didier ___ Qgis-user mailing list Qgis-user@lists.osgeo.org mailto:Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user http://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org
