I guess I get around that by passing class=1 as my filter so I can pass 1=1 as the default
If you want to set a default that gets all, perhaps you could use a like filter FILTER "Class like %class%" And a default of "%" Mike -- Michael Smith US Army Corps Remote Sensing GIS/Center On 10/27/11 9:56 AM, "Puneet Kishor" <punk.k...@gmail.com> wrote: > >On Oct 27, 2011, at 11:22 AM, Smith, Michael ERDC-CRREL-NH wrote: > >> Punnet, >> >> What I do in the situations where I want to default to all or allow some >> filtered access is >> >> METADATA >> "default_classes" "1=1" >> END >> >> So the dummy condition is passed when no filter is specified. >> >> >> > > >Believe it or not, I thought up of the above solution myself but >discarded it because I understood the text in the documents to mean the >following -- > > FILTER "class = '%class%'" > >will be applied if a class is provided. However, if no class is provided, >and if the following is provided > > METADATA > "default_class" "1=1" > END > >Then the filter will become "class = '1=1'", which is, of course not >correct. And, I just checked the logs with the above mods, and my >suspicion was proven correct. My log file shows ms croaking with the >following > >select "class",encode(ST_AsBinary(ST_Force_2D("the_geoms"),'NDR'),'hex') >as geom,"gid" from table where the_geoms && >GeomFromText('POLYGON((-180.150250417362 -90,-180.150250417362 >90,180.150250417362 90,180.150250417362 -90,-180.150250417362 >-90))',4326) and (class = '1=1') > >Obviously, I do not want "class = '1=1'" > > >> >> >> >> On 10/27/11 8:49 AM, "Puneet Kishor" <punk.k...@gmail.com> wrote: >> >>> the fine manual says http://mapserver.org/cgi/runsub.html >>> >>>> Since version 5.6, you can provide a default value for any >>>>substitution >>>> parameter, that will be applied if the parameter was not found in the >>>> url. >>>> You do this by providing special entries inside the layer metadata : >>>> >>>> METADATA >>>> 'default_sound' 'yes' >>>> 'default_nseats' '5' >>>> 'default_multimedia' 'yes' >>>> END >>>> >>>> In this example, the mapfile will be created as if the url contained >>>> ³&sound=yes&nseats=5&multimedia=yes² >>> >>> >>> Right then. Except, I want *all* my classes to be drawn if no class has >>> been provided. And, if one or more classes have been provided, then I >>> want only those to be drawn. So, >>> >>> http://server/mapfile?mode=map >>> >>> should return a map with all the 100+ classes in a layer. And >>> >>> http://server/mapfile?mode=map&classes=Foo,Bar >>> >>> (or some other variation of the above) should return a map with only >>>the >>> requested classes in the layer. I can't think of anyway of doing the >>> above without resorting to scripting, and I still have had no luck with >>> WMS returned from Perl MapScripting. >>> >>> Suggestions. >>> >>> -- >>> Puneet Kishor_______________________________________________ >>> mapserver-users mailing list >>> mapserver-users@lists.osgeo.org >>> http://lists.osgeo.org/mailman/listinfo/mapserver-users >> >
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