Web application error

[Pericles S. Nacionales]

Dave,

What does your result.html query template look like?  Did you capitalize all 
the attribute names (as in "[ATT_NAME]")?  If so, make them small caps for 
PostGIS tables--[att_name].

Also, here's another hint: Use the TOLERANCE keyword...  
http://mapserver.gis.umn.edu/docs/reference/mapfile/layer

Or if you prefer a fancier mapfile reference, check 
http://umn.mapserver.ch/index_en.php

Good luck!
-Perry

On Monday 27 March 2006 08:07, Dave Stone wrote:
> I am having problems adapting the class-level query template technique in
> Example 3.1 of the MapServer Tutorial.
>
> Essentially, I want to do as the tutorial example does, i.e. be able to
> click on a point feature on the map, and have a query template open up and
> display attributes for the point.
>
> The only significant difference between my setup and the example's (that I
> can see) is that the example queries a layer (cities) whose data source is
> a shapefile containing polygons, whereas my source is points in a PostGIS
> view (dedloc). The .map file segment for the layer is:
>
>  LAYER # query layer using the dedloc PostgreSQL view
>     CONNECTIONTYPE postgis
>     NAME          saint_dedications
>     CONNECTION    "user=erdb13 dbname=stdraft"
>     DATA          "geom from dedloc USING UNIQUE dr USING SRID=27700"
>     STATUS        DEFAULT
>     DEBUG         ON
>     TYPE          POINT
>     FILTERITEM    dedicationtype
>     FILTER        "dedicationtype='%dtype%'"
>     TOLERANCE     5
>     CLASS
>       NAME        "Dedications"
>       MINSCALE    2000000
>       TEMPLATE    "result.html"
>       STYLE
>         SYMBOL      "circle"
>         SIZE        5
>         COLOR       255 0 0
>         OUTLINECOLOR 0 0 0
>       END
>     END
>     CLASS
>       MAXSCALE    1900000
>       TEMPLATE    "result.html"
>       STYLE
>         SYMBOL      "circle"
>         SIZE        10
>         COLOR       255 0 0
>         OUTLINECOLOR 0 0 0
>       END
>     END
>   END # test query layer
>
>
> and the URL invoking the query template is:
>
> http://drayton.ucs.ed.ac.uk/cgi-bin/mapserv?imgxy=300.0+300.0&
> imgext=217114.636666+624099.796666+387452.636666+794437.796666&
> map=%2Fvar%2Fwww%2Fhtml%2Fsaints%2Fdata%2Fparish%2Fuig.map&
> savequery=true&mode=browse&img.x=320&img.y=271&zoomdir=0&zoomsize=4&
> layer=parish_labels&layer=parish&layer=saint_dedications&mode=query&
> dtype=Altar+dedication
>
> What I get when I click on a dot on the map displaying saint_dedications is
> a web page headed 'MapServer Message', but then no message, no attributes
> for the dot I clicked, nothing!
>
> Can anyone suggest what might be going wrong? The query template
> (result.html) is very simple; like Example 3.1, it just displays
> boilerplate HTML and attribute values for the dot that was clicked.

-- 
Pericles S. Nacionales
Conservation Biology Program
University of Minnesota
e-mail: naci0002 at umn.edu