<div dir="ltr"><div><div><div><div>mmm... sorry, debug infos left in the code....<br>simply remove line 142 (the last) of file<span style="font-family:arial,helvetica,sans-serif"></span><span style="font-family:arial,helvetica,sans-serif"> "/Users/didier/.qgis2/python/</span><span style="font-family:arial,helvetica,sans-serif">plugins/layerVersion/</span><span style="font-family:arial,helvetica,sans-serif">layerversion.py"<br></span></div></div><span style="font-family:arial,helvetica,sans-serif">with a text editor and reload the plugin.<br><br></span></div><span style="font-family:arial,helvetica,sans-serif">Regards.<br></span></div><span style="font-family:arial,helvetica,sans-serif">Enrico<br></span></div><div class="gmail_extra"><br><div class="gmail_quote">2015-07-20 13:05 GMT+02:00 Matthias Kuhn <span dir="ltr"><<a href="mailto:matthias@opengis.ch" target="_blank">matthias@opengis.ch</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div>
    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.<span class="HOEnZb"><font color="#888888"><br>
    <br>
    Matthias</font></span><div><div class="h5"><br>
    <br>
    <div>On 07/20/2015 11:25 AM, Neumann,
      Andreas wrote:<br>
    </div>
    <blockquote type="cite">
      
      <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:#1010ff 2px solid;margin:0">
        <div>Hello Andreas,</div>
        <div> </div>
        <div>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>
        <div>
          <div style="color:#000000;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
            <div style="color:#000000;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
              <div style="color:#000000;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
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                  <div style="color:#000000;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word"><span style="border-collapse:separate;color:#000000;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;border-spacing:0px">Didier<br>
                    </span></div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <br>
        <div>
          <blockquote>
            <div>Le 20 juil. 2015 à 09:10, Neumann, Andreas
              <<a href="mailto:a.neumann@carto.net" target="_blank">a.neumann@carto.net</a>>
              a écrit :</div>
            <div>
              <div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
                <p>Hi Didier,</p>
                <p>Is this for historisation purposes? If yes,
                  I would look into database solutions to do
                  historization.</p>
                <p>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>Andreas</p>
                <p>On 2015-07-20 08:00, didier peeters wrote:</p>
                <blockquote style="padding:0 0.4em;border-left:#1010ff 2px solid;margin:0">Hello,
                  <div> </div>
                  <div>I would like to find the best solution
                    to the following case:</div>
                  <div> </div>
                  <div>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>
                    <ul>
                      <li>start by copying the polygon, </li>
                      <li>then edit it (split) </li>
                      <li>then pasting back the original one, </li>
                      <li>then adjust and update the attributes
                        of the 2 new polygons.  </li>
                    </ul>
                    <div> </div>
                  </div>
                  <div>Is there a less tricky way to achieve
                    this ?  </div>
                  <div> </div>
                  <div>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> </div>
                  <div>Didier</div>
                  <br>
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                </blockquote>
                <div> </div>
                <div> </div>
              </div>
            </div>
          </blockquote>
        </div>
        <br>
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      </blockquote>
      <p> </p>
      <div> </div>
      <br>
      <fieldset></fieldset>
      <br>
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    </blockquote>
    <br>
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