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Hi,<br>
<br>
I remember geogig (formerly geogit) offers promising concepts for
filebased spatial data management with historization and branching.<br>
Unfortunately I don't know the current status of the project and the
progress of integration in QGIS.<br>
<br>
Matthias<br>
<br>
<div class="moz-cite-prefix">On 07/20/2015 11:25 AM, Neumann,
Andreas wrote:<br>
</div>
<blockquote cite="mid:6ae82f54d0a6ca6b06c1307ab96618da@carto.net"
type="cite">
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<p>Hi Didier,</p>
<p>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.</p>
<p>Andreas</p>
<p>On 2015-07-20 09:45, didier peeters wrote:</p>
<blockquote type="cite" style="padding: 0 0.4em; border-left:
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<div class="">Hello Andreas,</div>
<div class=""> </div>
<div class="">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. </div>
<br class="">
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class="Apple-style-span" style="border-collapse:
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-webkit-text-stroke-width: 0px;">Didier<br
class="">
</span></div>
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<br class="">
<div>
<blockquote class="">
<div class="">Le 20 juil. 2015 à 09:10, Neumann, Andreas
<<a moz-do-not-send="true" class=""
href="mailto:a.neumann@carto.net">a.neumann@carto.net</a>>
a écrit :</div>
<div class="">
<div class="" style="font-size: 10pt; font-family:
Verdana,Geneva,sans-serif;">
<p class="">Hi Didier,</p>
<p class="">Is this for historisation purposes? If yes,
I would look into database solutions to do
historization.</p>
<p class="">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.</p>
<p class="">Andreas</p>
<p class="">On 2015-07-20 08:00, didier peeters wrote:</p>
<blockquote class="" style="padding: 0 0.4em;
border-left: #1010ff 2px solid; margin: 0;"><!-- node type 8 --><!-- node type 8 --><!-- node type 8 -->Hello,
<div class=""> </div>
<div class="">I would like to find the best solution
to the following case:</div>
<div class=""> </div>
<div class="">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 </div>
<div class="">
<ul class="MailOutline">
<li class="">start by copying the polygon, </li>
<li class="">then edit it (split) </li>
<li class="">then pasting back the original one, </li>
<li class="">then adjust and update the attributes
of the 2 new polygons. </li>
</ul>
<div class=""> </div>
</div>
<div class="">Is there a less tricky way to achieve
this ? </div>
<div class=""> </div>
<div class="">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. </div>
<div class=""> </div>
<div class="">Didier</div>
<!-- node type 8 --><br class="">
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