[GeoNode-devel] QueryBuilder for Download Layer functionality

[Dimitris Karakostis]

Hi guys,

I have deployed the newly developed  'Query Builder and Map Filter' tool in
our staging server for WFP Geonode: http://staging.geonode.wfp.org/layers/
 There are still several features to be added but you can have a look and
give some recommendations, improvement ideas etc.
To use the tool, select a layer, click the Download button and then the
Layer Filtering.

Cheers
Dimitris



On Mon, May 16, 2016 at 9:09 PM, Patrick Dufour <pjdufour.dev at gmail.com>
wrote:

> Yes, I can help with the GNIP when ready.
>
> The implementation will leverage the cql_filter GeoServer WFS querystring
> parameter, as such no changes to GeoServer or django DB models are needed.
>
> Regards,
> Patrick Dufour
> On May 16, 2016 6:11 PM, "Jeffrey Johnson" <ortelius at gmail.com> wrote:
>
>> This is really awesome!
>>
>> Can you file a GNIP for this so we can discuss the implementation as a
>> group? If you need help with that, let us know. You will need a core
>> committer to actually file the GNIP. Perhaps Patrick can help?
>>
>> Looking forward to seeing/using this!
>>
>> Jeff
>>
>> On Mon, May 16, 2016 at 2:34 AM, Dimitris Karakostis
>> <karakostis.dimitris at gmail.com> wrote:
>> >
>> >
>> > Hello guys,
>> >
>> > How are you doing? I wanted to share with you our current development
>> > plans/progress for WFPGeonode. During the last week I have been working
>> on
>> > the implementation of a 'Query Builder' functionality in order to be
>> able to
>> > download specific parts of layers in the provided formats (kml, xls,
>> csv,
>> > zipped shape, geojson).
>> >
>> > The user can build the query by :
>> > 1. selecting from a dropdown menu the available attributes,
>> > 2. selecting an operator,
>> > 3. enter a valid value
>> >
>> > The different statements of the query can be combined either with AND
>> or OR
>> > operator. I have also used the OWSLib (0.11.0; thanks Tom)  in order to
>> get
>> > the type of attributes and apply some sort of validation (e.g. if you
>> try to
>> > put a string, while number is expected then you get an error message).
>> >
>> > For the above process I have used JQuery for the JS functionality and
>> > BootstrapCSS for the gui. The tool is part of the 'Download Layer'
>> modal and
>> > is currently being tested and making small fixes.
>> >
>> > The next step will be to build a map tool, which you will select the
>> area of
>> > interest (rectangle tool; bounding box etc.) and download it.
>> >
>> > I attach some screenshots of the two tools.  If you have any
>> > ideas/advice/comments please let me know. They are most welcome!
>> >
>> > Cheers
>> > Dimitris
>> >
>> > _______________________________________________
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>> > geonode-devel at lists.osgeo.org
>> > http://lists.osgeo.org/mailman/listinfo/geonode-devel
>> >
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>
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