[Mapserver-users] JOIN problems
BONNER S KARGER
bskarger at students.wisc.edu
Tue Jul 13 09:07:55 PDT 2004
List,
I am trying to use JOIN in my LAYER object to get more attribute info from a MySQL table. I have a point layer shapefile called "waste1" in the data directory. There is a field called PRDUCER_ID. The MySQL table I want to join is in the DB called "BYPRODUCTS3". The table name is "PRODUCER". The field name I want to use as the key in the table is called "PRODUCER_ID".
Browsing the map is no problem, but when I click the query option, then click a point from this layer, I get the following error:
Content-type: text/html msMySQLJoinConnect(): DBASE file error. Item PRDUCER_ID not found in table waste1.
msMySQLQuery(): Query error. Bad mysql query (SELECT count(PRDUCER_ID) FROM waste1)
What is going on? It seems like there is no place in the JOIN object to tell mapserver what db table to use...only which .dbf table to use.
Below is the layer def. from my map file:
LAYER
NAME waste1
TYPE POINT
STATUS ON
DATA waste1
CLASS
NAME "Meat Proc. Residuals"
TEMPLATE "test.html"
COLOR 255 051 000
SYMBOL "circle"
SIZE 8
END
TOLERANCE 5
DUMP TRUE # allow GML export
JOIN
CONNECTIONTYPE mysql
CONNECTION "server:user:pass:BYPRODUCTS3"
NAME "MeatProcJoin"
TABLE waste1
FROM PRODUCER_ID
TO PRDUCER_ID
TYPE SINGLE
END
END
This is mapserver 4.2, on Linux.
Any ideas?
Thanks
Bonner
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