[Geomoose-users] Changes to mapserver-type layer handling in GM 2.6?

Tue Apr 17 11:42:06 EDT 2012

None of that stuff is used from the *mapping* side of things.  This only effects *map rendering.*  You don't need to make any chances to any templates.  You are not forced to use SLD to configure cartography.  It simply *calls* mapserver using WMS instead of MODE=map.  This reduced quite a bit of code and creates significantly more consistency and testability with how requests are made.

Plus, it forces users to configure WMS which is (theoretically) more secure and (definitely) more standardized.

>________________________________
> From: Bob Basques <Bob.Basques at ci.stpaul.mn.us>
>To: Jim Klassen <klassen.js at gmail.com>; Johan Forsman <Johan.Forsman at LA.GOV>; Dan Little <danlittle at yahoo.com> 
>Cc: "geomoose-users at lists.osgeo.org" <geomoose-users at lists.osgeo.org> 
>Sent: Tuesday, April 17, 2012 10:31 AM
>Subject: Re: [Geomoose-users] Changes to mapserver-type layer handling in GM 2.6?
> 
>
>Hmm,  I would vote for putting the MAPSERVER calling functionality back in, doesn't need to be default or anything, but removing functionality seems wrong for some reason.  There are other things that mapserver can do that WMS/WFS can't yet.  The templating options alone should be reason to keep it around.  SLD templates are a bear to build. 
>
>Is this something that could be applied via a extra module packaging or ??? 
>
>bobb 
>
>
>
>>>> Dan Little <danlittle at yahoo.com> wrote:
>
>There is no fall-back to MapServer mode. 
>
>
>I really thought LAYERS=all was still working. In fact, I thought it's being used in the demo? 
>
>
>To: Johan Forsman <Johan.Forsman at LA.GOV>
>>Cc: Bob Basques <Bob.Basques at ci.stpaul.mn.us>; "geomoose-users at lists.osgeo.org" <geomoose-users at lists.osgeo.org>
>>Sent: Monday, April 16, 2012 8:41 PM
>>Subject: Re: [Geomoose-users] Changes to mapserver-type layer handling in GM 2.6?
>> 
>>
>>
>>Cool! 
>>
>>
>>The list is always a good place to start for problems/questions/feedback. 
>>
>>
>>At one point I thought there was a fallback to the old MapServer mode, but I'm not seeing it in the code now.  Maybe I missed it.  Dan? 
>>
>>
>>On Apr 16, 2012, at 8:08 PM, Johan Forsman wrote: 
>>
>>
>>Success! 
>>>The fastest method I could think of to test all layers was a bulk Find of “STATUS ON” and Replace with “GROUP ‘all’” which indeed allows the layers to display as intended using <layer name="all"/> in the mapbook. 
>>>I think this topic needs to be documented front and center in the migration guide as it represents a fundamental change in the way the application works. I am sure there are many instances of legacy GM/MapServer  installations that may require significant retooling to work with the new version, especially if they are not configured to serve WMS already. 
>>>Thanks for the tips and for a really great product. 
>>>I am curious about Jim’s “in the default case”  statement. Does this mean there is a case where the MapServer layers are *not* translated to WMS calls? 
>>>Incidentally, I may have discovered a few other items that may not be as intended. If they are not user error, where is appropriate to report them? 
>>>Thanks again, 
>>>Johan. 
>>>From: Bob Basques [mailto:Bob.Basques at ci.stpaul.mn.us] 
>>>Sent: Monday, April 16, 2012 3:07 PM
>>>To: Jim Klassen; Johan Forsman
>>>Cc: geomoose-users at lists.osgeo.org
>>>Subject: Re: [Geomoose-users] Changes to mapserver-type layer handling in GM 2.6? 
>>>  
>>>All (of you), 
>>>  
>>>Just adding the desired layers to a GROUP called "all", should fix things (I think) 
>>>  
>>>bobb 
>>>  
>>>
>>>
>>>>>> Jim Klassen <klassen.js at gmail.com> wrote: 
>>>It was intentional to migrate to using WMS over the MapServer specific calls in the default case as it eases interoperability with other servers and simplifies the code in many cases.
>>>
>>>I don't think it was intentional to loose the layers=all trick (which was implemented inside MapServer not GeoMoose).  Do any of the suggestions in the MapServer ticket referenced by Bob work as a workaround for you?
>>>
>>>While 2.6 is near to release, one of the bigger tasks left is finishing up documentation.  Thank you for testing and bring this to our attention.
>>>
>>>On Apr 16, 2012, at 2:24 PM, Johan Forsman wrote:
>>>
>>>> All:
>>>>
>>>> I am slowly migrating a GM 2.2 site with some minor customizations to 2.6 and am wondering if what I am observing with my mapserver layers is by design or an error on my part.
>>>>
>>>> On 2.6 it appears that all mapserver layers are requested as WMS which appears to result in
>>>>
>>>> 1) any mapserver-type layer returns an error if the map file does not at least contain something like 'ows_enable_request' '*', and
>>>>
>>>> 2) using the "all" parameter in the layer definition in the mapbook returns an error.
>>>>
>>>> For example, in the 2.2 environment I have a "roads" source defined in the mapbook very simply as such:
>>>>
>>>> <map-source name="roads_simple" type="mapserver" >
>>>> <file>./sdwp/roads/webmaps_osm_lahwys.map</file>
>>>> <layer name="all"/>
>>>>
>>>> <layer title="Roads" src="roads_simple/all" status="off" legend="true" show-legend="true" fade="false" unfade="false"/>
>>>>
>>>> The forwarded URL request is:
>>>>
>>>> http://oph-isb-gis01/cgi-bin/mapserv.exe?map=/mapserver/apps/geomoose2/maps//sdwp/roads/webmaps_osm_lahwys.map&layers=all&mode=map&mapext=-10879743+3088767+-9475743+4200267&imgext=-10879743+3088767+-9475743+4200267&map_size=1404+1111&imgx=702&imgy=555.5&imgxy=1404+1111
>>>>
>>>> The map file contains many scale-dependent line- and annotation layers and renders beautifully.
>>>>
>>>> In the 2.6 environment the same mapbook definition and mapfile results in this call:
>>>>
>>>> http://oph-isb-gis01/cgi-bin/mapserv.exe?
>>>> MAP=/mapserver/apps/geomoose26/maps//sdwp/roads/webmaps_osm_lahwys.map&FORMAT=image/png&TRANSPARENT=TRUE&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&LAYERS=all&SRS=EPSG%3A3857&BBOX=-10706687.23566,3214635.152984,-9648798.7643401,4074398.847016&WIDTH=865&HEIGHT=703
>>>>
>>>> which returns:
>>>>
>>>> <ServiceException code="LayerNotDefined">
>>>> msWMSLoadGetMapParams(): WMS server error. Invalid layer(s) given in the LAYERS parameter.
>>>> </ServiceException>
>>>>
>>>> I have unsuccessfully searched for documentation on this topic. Please advise.
>>>>
>>>> Thanks!
>>>> Johan Forsman
>>>> Geologist
>>>> Engineering Services
>>>> LDHH-OPH-CEHS
>>>> 225.342.7309
>>>>
>>>>
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