Is it possible for MG Server to Parse the Filter dynamically, i.e. the filter can act as request parameter?
I think it will be very useful. Kenneth Skovhede, GEOGRAF A/S wrote: > > There exists an FDO command that allows you you to pass the query > directly to the datasource. > AFAIK, that is not possible to do with a layer filter. > > Instead, you can create a view in the database with the appropriate > filter, and then use that view as your datasource. > > Regards, Kenneth Skovhede, GEOGRAF A/S > > > > Carl skrev: >> I got it partially. >> >> C:\Program Files\MapGuideOpenSource2.0\WebServerExtensions\Help\index.htm >> >> I set the filter as: >> >> Prj_Geometry INTERSECTS GEOMFROMTEXT ( 'POINT(1 1)' ) >> >> But sometimes the complicated spatial computation can only be done by the >> datasource self. Maybe it is possible to add a bool tag to denote how to >> parse the filter? by the provider or by MG OS Server? >> >> >> Carl wrote: >> >>> I just had a post about SQL 2008 Provider and got many effective >>> answers, >>> and had my problem partially resolved. >>> >>> Now I can add a layer referencing to a feature datasource of ms sql >>> 2008. >>> >>> Further more, I need to give a filter to the layer to select part of >>> features. if I give a common condition(i.e. the common boolean clause, >>> such as " id='1' and name like '%_c' "), and the mapguide can give a >>> correct response (i.e. the features on the map are just those selected). >>> but if I give a spatial condition ( such as "Prj_Geometry.STIsClosed()=1 >>> "), Mapguide always return a map contains all features. >>> >>> Is the boolean expression parsed by the datasource or by MapGuide Server >>> itself? >>> >>> In my opinion, the filter string should be parsed and executed by the >>> provider datasource, such as MS SQL server 2008. >>> >>> could anybody help me? >>> >>> >> >> > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > -- View this message in context: http://www.nabble.com/MapGuide-SQL2008-Provider%3A-can%27t-support-geometry-method--tp20056020p20065743.html Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
