'[Qgis-user] user defined function in WFS expression string builder'

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List:       qgis-user
Subject:    [Qgis-user] user defined function in WFS expression string builder
From:       Nicolas Boisteault <boisteault () observatoire-environnement ! org>
Date:       2015-12-21 8:58:52
Message-ID: 5677BF4C.5090803 () observatoire-environnement ! org
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Hi,

I've posted this question on gis.stackexchange : 
http://gis.stackexchange.com/questions/173213/quickly-make-server-side-spatial-filters-for-wfs-layers-based-on-other-layers-s

In the edit part of the question, I'm using a user defined function in 
the WFS expression string builder which return wkt for selected features.
This function is correct used alone but I dont' get any filter when I 
use it this way :

intersects(  $geometry , geom_from_wkt(getSelectedFeaturesInWKT()))

Is it a bug or I'm doing something the wrong way?

-- 
Nicolas BOISTEAULT
Développeur Web
Observatoire Régional de l'Environnement Poitou-Charentes
Téléport 4 Antarès - BP 50163 - 86962 Futuroscope Chasseneuil Cedex
Tél : 05 49 49 71 18
*Soyez Eco-responsable, n'imprimez que si nécessaire*

[Attachment #5 (text/html)]

<html>
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    <meta http-equiv="content-type" content="text/html; charset=utf-8">
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  <body text="#000000" bgcolor="#FFFFFF">
    Hi,<br>
    <br>
    I've posted this question on gis.stackexchange :
    <a class="moz-txt-link-freetext"
href="http://gis.stackexchange.com/questions/173213/quickly-make-server-side-spatial-f \
ilters-for-wfs-layers-based-on-other-layers-s">http://gis.stackexchange.com/questions/ \
173213/quickly-make-server-side-spatial-filters-for-wfs-layers-based-on-other-layers-s</a><br>
  <br>
    In the edit part of the question, I'm using a user defined function
    in the WFS expression string builder which return wkt for selected
    features.<br>
    This function is correct used alone but I dont' get any filter when
    I use it this way :<br>
    <br>
    intersects(   $geometry , geom_from_wkt(getSelectedFeaturesInWKT()))<br>
    <br>
    Is it a bug or I'm doing something the wrong way?<br>
    <br>
    <div class="moz-signature">-- <br>
      Nicolas BOISTEAULT<br>
      Développeur Web<br>
      Observatoire Régional de l'Environnement Poitou-Charentes<br>
      Téléport 4 Antarès - BP 50163 - 86962 Futuroscope Chasseneuil
      Cedex<br>
      Tél : 05 49 49 71 18<br>
      <span style="color:#3E703F"><b>Soyez Eco-responsable, n'imprimez
          que si nécessaire</b></span></div>
  </body>
</html>

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