wfs attribute filtering

[Huub Fleuren]

I see. Thanks .

I might experiment with

gml_include_items "all"

to retrieve all data with a proxy that i use for the CONNECTION if 
that's not too mapserverspecific, and filter it in there with XSL, but 
that would be quite a workaround

variable substitution would be good though!

let's see...
mapserv.c ln. 274 in *loadMap

  /* check for any %variable% substitutions here, also do any map_ 
changes, we do this here so WMS/WFS  */
  /* services can take advantage of these "vendor specific" extensions */
  for(i=0;i<msObj->request->NumParams;i++) {
    if(strncasecmp(msObj->request->ParamNames[i],"map_",4) == 0) { /* 
check to see if there are any additions to the mapfile */
      if(msLoadMapString(map, msObj->request->ParamNames[i], 
msObj->request->ParamValues[i]) == -1) writeError();
    }

Seems to me that it should work.
Maybe file a bug.



Huub


Bart van den Eijnden wrote:

>Huub,
>
>1: add gml_include_items "all" to your LAYER's METADATA section
>2: I don't expect this to work with variable subsitution
>3: You can set the wfs_filter METADATA with Mapscript, I don't think you can do this with normal CGI
>
>Best regards,
>Bart
>
>Bart van den Eijnden
>Syncera IT Solutions
>Postbus 270
>2600 AG  DELFT
>
>tel.nr.: 015-7512436
>email: BEN at Syncera-ITSolutions.nl
>
>  
>
>>>>Huub Fleuren <hfl at HOME.NL> 08/23/05 1:55 pm >>>
>>>>        
>>>>
>Hi List
>
>I'm happily getting images from a wfs_filtered WFS client layer from my 
>map-WFS-server and i was accumulating the following questions.
>
>1. Why are there no attributes in the response to
>
> http://localhost/cgi-bin/mapserv/bin/mapserv.exe?map=mapserv/bin/chameleon.map&version=1.0.0&service=wfs&request=getfeature&typename=park 
> http://localhost/cgi-bin/mapserv/bin/mapserv.exe?map=mapserv/bin/chameleon.map&version=1.0.0&service=wfs&request=getfeature&typename=park&Filter=<Filter><PropertyIsEqualTo><PropertyName>PARK_</PropertyName><Literal>10</Literal></PropertyIsEqualTo></Filter>
>
>2. I'm trying variable substitution in the to <ogc:filter/> but the 
>expression % + variable + % is  interpreted litterally
>
> http://localhost/cgi-bin/mapserv/bin/mapserv.exe?map=mapserv/bin/wfs_park.map&PARK_=10&service=wms&request=getmap&version=1.1.1&layers=wfs_park&styles=&srs=EPSG:42304&bbox=-2600000,-700000,3500000,3840000&width=610&height=450&format=png&transparent=true&exceptions=text/xml&bgcolor=0xffffff 
>
>3. How can I  filter dynamically?
>
>Regards, Huub
>===
>
>WFS Server layerdefinition
>LAYER
>  NAME park
>  DUMP TRUE
>  METADATA
>    DESCRIPTION   "Park"
>  END
>  TYPE POLYGON
>  STATUS ON
>  DATA park
>  CLASS
>    NAME "Parks"
>    COLOR 200 255 0
>    OUTLINECOLOR 120 120 120
>  END
>  TOLERANCE 5
>END # Layer
>
>
>WFS Client layerdefinition
>
>LAYER
>  NAME wfs_park
>  TYPE POLYGON
>  STATUS ON
>  CONNECTIONTYPE WFS
>  CONNECTION 
>"http://localhost/cgi-bin/mapserv/bin/mapserv.exe?map=mapserv/bin/chameleon.map"
>  #adding a Filterkeyword works, but also not applicable to variable 
>substitution
>  
>#&Filter=<Filter><PropertyIsEqualTo><PropertyName>PARK_</PropertyName><Literal>%PARK_%</Literal></PropertyIsEqualTo></Filter>"
>  METADATA
>    "wfs_typename"          "park"
>    "wfs_version"           "1.0.0"
>    "wfs_request_method"    "GET"
>    "wfs_connectiontimeout" "60"
>    "wfs_maxfeatures"       "50"
>    "wfs_filter"   
>"<PropertyIsEqualTo><PropertyName>PARK_</PropertyName><Literal>%PARK_%</Literal></PropertyIsEqualTo>"
>#  "wfs_filter"   
>"<PropertyIsEqualTo><PropertyName>PARK_</PropertyName><Literal>10</Literal></PropertyIsEqualTo>"
>
>  END
>  PROJECTION
>    "init=epsg:42304"
>  END
>    CLASS
>        STYLE
>        COLOR 0 255 0
>        END
>    END
>END
>
>
>
>  
>