I'm a big fan of constants. I have some libary files that contain many
constant definitions that are used in many the libary methods but are
change depending on the site where Active4D runs. Therefore I have to
maintain different versions of the libary for my development and
production sites. Things may have changed with the upcoming 4.0, but my
experience with 3.0 was that the define function only allows literals in
constant assignments.
You can do this
define (kFOO;"foo")
but not this
define (kFOO;value resulting from an expression)
You also can't do this:
define (kFOO;"foo")
define (kFOOBAR; kFOO + "bar")
In my development version of the library I might have
define (BCRHOST;"bcr.dev.mysite.com")
define (ECRHOST;"ecr.dev.mysite.com")
define (TTSHOST;"tts.dev.mysite.com")
define (ERRHOST;"www.dev.mysite.com")
In my production version of the libary these constants would be different
define (BCRHOST;"bcr.mysite.com")
define (ECRHOST;"ecr..mysite.com")
define (TTSHOST;"tts.mysite.com")
define (ERRHOST;"www.mysite.com")
I've occasionnally ran into problems where I accidently put the wrong
libary in a site. It's easy to catch those errors, but I wish there was
an easier way to manage this situation.
What would be nice is to have some kind of library specific conditional
where I could test if I was running on development or production
#IF (Some condition)
define (BCRHOST;"bcr.mysite.com")
define (ECRHOST;"ecr..mysite.com")
define (TTSHOST;"tts.mysite.com")
define (ERRHOST;"www.mysite.com")
#ELSE
define (BCRHOST;"bcr.dev.mysite.com")
define (ECRHOST;"ecr.dev.mysite.com")
define (TTSHOST;"tts.dev.mysite.com")
define (ERRHOST;"www.dev.mysite.com")
#END IF
Because define won't make an assignment based on an expression I can't
do this:
define
(BCRHOST;choose(sometest;"bcr.dev.mysite.com";"bcr.mysite.com"))
Has anyone else had to deal with this situation and if so how did you
solve it?
Thanks,
Brad Perkins
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