From guglielmo.raimondi at gmail.com  Thu Apr 28 01:16:46 2022
From: guglielmo.raimondi at gmail.com (Guglielmo Raimondi)
Date: Thu, 28 Apr 2022 10:16:46 +0200
Subject: [qgis-qwc2] Filtering features, client side
Message-ID: <CANDv3sYUvS5ZiU_c7BRbh39inzRBhnZA-Dp-6uVe4m5a19=r9Q@mail.gmail.com>

Hi everyone,
I would like to filter the features of a layer based on a filter decided by
the user, on the client side, which produces a list of primary key
identifiers corresponding to the features to be displayed.

In my code, I build the list with a database query written in *php *and I
would like to pass the filter to qwc2 with a procedure written in
*javascript*.

At the moment I was only able to calculate the bounding box of the
selection of filtered objects and to command the zoom to the same extent on
qwc2, using the *window.qwc2.zoomToExtent ()* function.
Is there a procedure to also control the features filter?

Assuming that:

   - *$filter* variable contains the filter decided by the user;
   - the frame containing qwc2 is "*gfx*";
   - *s_bene_tutelato* is the layer to be filtered, offered by a Qgis
   Server and based on the homonymous table of a PostgreSQL + PostGIS database

, this is my code:

    $str_sql =
"SELECT '[' || replace(replace(substring(ST_Expand(ST_Extent(ST_Transform(geom,
32632)), 10000)::text from 5 for 100), ' ', ','), ')', ']')  FROM
public.s_bene_tutelato"
;
    if (strlen($filter) > 0) {
        $str_sql = $str_sql . " where " . $filter;
    }
    $filter_extent = ExecuteScalar($str_sql);

    ?> <script type="text/javascript">
        var layer = {
            id: "myselectionlayer",
            role: top.gfx.window.qwc2.LayerRole.SELECTION
        };
        top.gfx.window.qwc2.removeLayer("myselectionlayer");
        top.gfx.window.qwc2.zoomToExtent(<?=$filter_extent;?>, "EPSG:32632"
);
    </script> <?php


Thanks for the attention,
Guglielmo
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From amitucethumanities at gmail.com  Fri Apr 29 23:57:30 2022
From: amitucethumanities at gmail.com (Amit Purushottam)
Date: Sat, 30 Apr 2022 12:27:30 +0530
Subject: [qgis-qwc2] qgis-qwc2 Digest, Vol 36, Issue 1
In-Reply-To: <mailman.47.1633374002.20702.qgis-qwc2@lists.osgeo.org>
References: <mailman.47.1633374002.20702.qgis-qwc2@lists.osgeo.org>
Message-ID: <CAA+PuzW9itLScYFmJv+PqaO-m8xHM5AV1Nw+1Jj5ww2zwjOceA@mail.gmail.com>

Dear Sir/Madam


This email brings vitality.

Research Updates have been noted.

Collaborating for Climate Change Initiatives.

Currently,Our Team is looking for Lithium Li96 extraction  in Jharkhand and
Bihar,India,for Electric Vehicles Manufacturing and Making Electric
Vehicles economical for everyone.

Thanking

Dr Amit Purushottam
CEO
CARCS.IN
6204323465

On Tue, 5 Oct 2021 at 00:32, <qgis-qwc2-request at lists.osgeo.org> wrote:

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> Dr Amit Purushottam
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