Well, that’s not good is it. Hmmm… I ran a quick test here using this mapfile:
MAP
NAME 'test'
SIZE 450 600
EXTENT 125000 4785000 788000 5489000
IMAGETYPE PNG8
LAYER
VALIDATION
'area' '^[-+]?[0-9]*\.?[0-9]+$'
END
NAME 'county'
STATUS DEFAULT
TYPE POLYGON
DATA ' bdry_counpy2'
CLASS
EXPRESSION ([area] > %area%)
STYLE COLOR 212 212 212 OUTLINECOLOR 0 0 0 END
END
END
END
This is against 6.0 latest trunk although I don’t think there have been any
changes in that area…
I can run something like:
mapserv -nh "QUERY_STRING=map=test.map&mode=map&area=500000000" > test.png
If ‘area’ parameter is provided as a non-double then the substitution isn’t
done. I believe the substitution validation errors fail silently. This example
works, how different is what you’re doing?
Steve
From: Prabu Raja [mailto:[email protected]]
Sent: Wednesday, November 16, 2011 5:16 AM
To: Lime, Steve D (DNR)
Cc: [email protected]
Subject: Re: [mapserver-users] Problem with Variable Substitution for EXPRESSION
Thanks Steve.
Tried the following regular expression
"[-+]?[0-9]*\.?[0-9]+".
For which the internal server error is coming from Apache. No error logged in
mapserver log.
"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to
complete your request."
On Tue, Nov 15, 2011 at 8:37 PM, Lime, Steve D (DNR)
<[email protected]<mailto:[email protected]>> wrote:
See http://www.regular-expressions.info/floatingpoint.html for some good
examples.
Steve
From:
[email protected]<mailto:[email protected]>
[mailto:[email protected]<mailto:[email protected]>]
On Behalf Of Prabu Raja
Sent: Tuesday, November 15, 2011 4:29 AM
To: [email protected]<mailto:[email protected]>
Subject: [mapserver-users] Problem with Variable Substitution for EXPRESSION
Hi,
I need to compare one attribute from database table in "EXPRESSION" (under
"LAYER") with six different values passed as Variable Substitution for
coloring the layer.
I did added validation for those variables in the map file, but for some reason
I am getting the below error.
msValidateParameter(): Regular expression error. Parameter pattern validation
failed.
msEvalRegex(): Regular expression error. String failed expression test.
msValidateParameter(): Regular expression error. Parameter pattern validation
failed.
Could anyone help me with where I am wrong? Below is the map file content for
this layer.
All the six variables would be numbers (may be a decimal number), Is my regular
expression correct?
WEB
VALIDATION
value_one "^[\d+(\.\d)]*$"
value_two "^[\d+(\.\d)]*$"
value_three "[^\d+(\.\d)]*$"
value_four "[^\d+(\.\d)]*$"
value_five "[^\d+(\.\d)]*$"
value_six "[^\d+(\.\d)]*$"
END
END
LAYER
NAME "state"
TYPE polygon
STATUS ON
CONNECTIONTYPE POSTGIS
CONNECTION "user=postgres password=****** dbname=shpdb host=localhost
port=5432"
DATA "the_geom FROM (SELECT gid, the_geom, totpop1 FROM state_shape) AS
SUBQUERY using unique gid"
PROCESSING "CLOSE_CONNECTION=DEFER"
CLASSITEM "totpop1"
OPACITY 100
CLASS
EXPRESSION ([TOTPOP1] >= %value_one% AND [TOTPOP1] < %value_two%)
STYLE
COLOR 255 108 118
OUTLINECOLOR 255 255 255
END
END
CLASS
EXPRESSION ([TOTPOP1] >= %value_two% AND [TOTPOP1] < %value_three%)
STYLE
COLOR 254 189 75
OUTLINECOLOR 255 255 255
END
END
CLASS
EXPRESSION ([TOTPOP1] >= %value_three% AND [TOTPOP1] < %value_four%)
STYLE
COLOR 254 247 46
OUTLINECOLOR 255 255 255
END
END
CLASS
EXPRESSION ([TOTPOP1] >= %value_four% AND [TOTPOP1] < %value_five%)
STYLE
COLOR 39 251 114
OUTLINECOLOR 255 255 255
END
END
CLASS
EXPRESSION ([TOTPOP1] >= %value_five% AND [TOTPOP1] <= %value_six%)
STYLE
COLOR 108 111 205
OUTLINECOLOR 255 255 255
END
END
END
--
Regards,
Prabu Raja
--
Regards,
Prabu Raja
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