[MapServer-dev] Possibly undocumented 8.0 change

[Rahkonen Jukka]

Hi Richard,

Is your aim with using GROUP without NAME to hide the layer from GetCapabilities so that users cannot see or request that layer separately but only as a member of a group? Like "opaque container" in Geoserver https://docs.geoserver.org/latest/en/user/data/webadmin/layergroups.html

-Jukka Rahkonen-



Lähettäjä: Seth G <sethg at geographika.co.uk>
Lähetetty: maanantai 29. elokuuta 2022 10.45
Vastaanottaja: Richard Greenwood <richard.greenwood at gmail.com>; Rahkonen Jukka <jukka.rahkonen at maanmittauslaitos.fi>
Kopio: MapServer Devs <mapserver-dev at lists.osgeo.org>
Aihe: Re: [MapServer-dev] Possibly undocumented 8.0 change

Hi Richard,

Could you create an issue for this on GitHub?
It looks like it could relate to the move to C++.
Thanks,

Seth

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On Mon, Aug 29, 2022, at 9:34 AM, Richard Greenwood wrote:
An empty string for the NAME works without error. I set the MS_DEBUGLEVEL to 5 and nothing is written to the error file when this error occurs.

On Mon, Aug 29, 2022 at 12:44 AM Rahkonen Jukka <jukka.rahkonen at maanmittauslaitos.fi<mailto:jukka.rahkonen at maanmittauslaitos.fi>> wrote:

Hi,



What happens if you use an empty NAME?



-Jukka Rahkonen-


Lähettäjä: MapServer-dev <mapserver-dev-bounces at lists.osgeo.org<mailto:mapserver-dev-bounces at lists.osgeo.org>> Puolesta Richard Greenwood
Lähetetty: maanantai 29. elokuuta 2022 9.06
Vastaanottaja: Seth G <sethg at geographika.co.uk<mailto:sethg at geographika.co.uk>>
Kopio: MapServer Devs <mapserver-dev at lists.osgeo.org<mailto:mapserver-dev at lists.osgeo.org>>
Aihe: Re: [MapServer-dev] Possibly undocumented 8.0 change



Yes, it's with a WMS request. Apache throws a 500 error "End of script output before headers". I define a LAYER with a GROUP but no NAME. I don't believe METADATA plays into it because I commented out the METADATA block and it fails in the same way.



On Sun, Aug 28, 2022 at 3:07 PM Seth G <sethg at geographika.co.uk<mailto:sethg at geographika.co.uk>> wrote:

Hi Richard,



Do you have more details - is this when using WMS? Is there an error that appears?

For WMS there is a known conflict between GROUP and wms_layer_group in a METADATA block, but this sounds like something different.



Seth



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On Sun, Aug 28, 2022, at 3:53 PM, Richard Greenwood wrote:

I didn't see mention of this in the docs, apologies if I missed it. It appears that as of 8.0 a layer must have a NAME. In the past it has been possible for a layer not to have a NAME if it had a  GROUP.



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