[mapserver-dev] Boolean class expression Mapserver 7.2

[Lime, Steve D (MNIT)]

Hi Karin: All of the example expressions below represent straight string comparisons so for ("[something]" == 'f') to evaluate to true the value for something would need to be 'f', same goes for all the others. 'f', 't' and 'false' are just strings and are not equivalent to true/false - you'd use something like ([something] == true) if you really wanted that type of comparison.

Anyway, just so I understand, you're saying you have data where something = 'f' and it works in 7.0 but not in 7.2?

--Steve

From: mapserver-dev [mailto:mapserver-dev-bounces at lists.osgeo.org] On Behalf Of Karin Kuipers
Sent: Wednesday, December 19, 2018 3:03 AM
To: mapserver-dev at lists.osgeo.org
Subject: [mapserver-dev] Boolean class expression Mapserver 7.2

Dear sir/madame,

I think I found an issue with the boolean class expression in Mapserver 7.2

On 7.0 ("[something]" == 'f') works

On 7.2 ("[something]" == 'f') does not work but ("[something]" != 't') works fine and ("[something]" == 'false') is fine as well.

Connection is to a postgis database.

With kind regards,

Karin Kuipers

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Karin Kuipers
Overingeniør GIS-Specialist
IT-avdelingen, Geodatatjenester -I5
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