Hi all, hope your weekend is good!
Getting all of the Test Suite examples to function with my ver 5.4.1 of
MapServer.
1. Expressions can no longer be passed in the url correct? If attempted,
they are just ignored
with 5.0+?
2. When using expressions in classes, we treat the expressions as 'regular'
SQL statements?
i.e. If the ATTRIBUTE type is a string, we quote it, and if the type is
numeric we don't?
The map excerpt below is from my modification of
/tests46/expressions/test.map. The
image renders as expected when I finally snapped to removing quote marks
from
EXPRESSION ("[AREA]" > '%area%' ) (which did evaluate without error, but
was evidently
making string comparison of the values)
.
.
.
LAYER
NAME counties_hilite
DATA county
STATUS ON
TYPE POLYGON
CLASS
EXPRESSION ('%cty_fips%' = "[CTY_FIPS]")
COLOR 255 255 0
END
CLASS
EXPRESSION ([AREA] > %area% )
COLOR 212 212 212
END
END
.
.
.
3. When or when not to declare a CLASSITEM? Only when inserting more than
one CLASS for
for the same attribute? And its purpose is to basically make a
shorthand for the SQL statement
in our EXPRESSION? e.g.,
CLASSITEM 'NAME'
CLASS
EXPRESSION ('some name') # in lieu of EXPRESSION ("[NAME]" = 'some
name')
COLOR 255 255 255
END
CLASS
EXPRESSION ('some other name')
COLOR 0 0 0
END
Thanks in advance! Enjoying this more every day!
Ted S.
MapServer version 5.4.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=ICONV
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=THREADS INPUT=EPPL7
INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
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