Sorry wasn't paying attention. :)
I don't see a problem on quick look but try simplifying your layer (as a
test) and see if it works:
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
TOLERANCE 25
CLASS
NAME "Dedications"
TEMPLATE "result.html"
DEBUG ON
STYLE
SYMBOL "circle"
SIZE 5
COLOR 255 0 0
OUTLINECOLOR 0 0 0
END
END
END # test query layer
Note the lower case on the DATA parameter... I don't know if that's
still a problem. If that still doesn't work, check the PostGIS log (if
you have logging enabled)... Also, I don't know which version of
MapServer you're using. Try upgrading to 4.8.3 (or downgrading to
4.6.x). You can also do a search on bugzilla to see if there's any open
bugs that pertain to your problem.
Good luck!
-Perry
Dave Stone wrote:
The layer addressing the PostGIS view was in the original post, but in
case the problem is elsewhere in the .map file, I've attached the whole
thing. Also the uig.html template which displays the map. The query
template (result.html) you have below. Thanks for your patience; I
really appreciate your support.
Cheers,
Dave
Pericles S. Nacionales wrote:
Dave,
Can you please post your mapfile or at least the object corresponding
to the layer you're querying? We can't answer your question without
the details.
-Perry
Dave Stone wrote:
Apologies for emailing direct -- LISTSERV keeps rejecting my posts as
duplicates.
No joy so far, I'm afraid, Perry. You were right about the PostGIS
names being upper-case, so I've
changed them all to lower-case, and the result.html query template
now looks like this:
# query template
<html>
<head>
<title>MapServer - ItemQuery</title>
</head>
<body bgcolor="#ffffff">
<font size="+2" face="arial,helvetica"><b>Case 1: Simple ItemQuery
With QueryMap</b></font>
<p>
This is just a simple dump of a few attributes for an individual
location
in the test suites parishes layer:
<p>
<b>Place Name:</b> [placename]<br>
<b>Qualifying Name:</b> [qualifyingname]<br>
<b>Location Type:</b> [locationtype]<br>
<b>Grid Reference:</b> [locationgridref]<br>
<b>Religious Order:</b> [religiousorder]<br>
<p>
and here's the map of the query results (you can zoom to a set of
results as well):
<p>
</body>
</html>
I had TOLERANCE set to 5 (pixels) for the PostGIS layer originally,
and tried upping it to 25 in
hope that it would make it easier to 'hit the spot' when clicking on
the dots on the map. But no
output -- just a blank page titled 'MapServer Message'.
I also tried setting DEBUG ON for the layer and class objects, but
there wasn't anything significant
in the log file, just some map extent parameters.
Thanks for the pointer to the 'flashy' mapfile reference; there's
some useful examples in there.
Cheers,
Dave
----- Original Message ----- From: "Pericles S. Nacionales"
<[EMAIL PROTECTED]>
To: "Dave Stone" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Monday, March 27, 2006 6:25 PM
Subject: Re: [UMN_MAPSERVER-USERS] Web application error
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: [EMAIL PROTECTED]
.
