On Jun 17, 2008, at 2:37 PM, Dan Korn wrote:
Do you have a "return" statement preceding that last line?
On Jun 17, 2008, at 3:04 PM, Jon Molesa wrote:
No.
Yes, you do! There are two, at lines 15 and 20.
Looking at your rule a bit more closely, I suspect that the problem is
in this part:
try
{
if (of.open("create") == false)
{
return "Could not write output file:\n" + temp;
}
}
catch (e)
{
return e + ":\n" + temp;
}
You're probably hitting one of those "return" lines, which is short-
circuiting the rule before it gets to the end. Try doing this instead:
try
{
if (of.open("create") == false)
{
Print("Could not write output file:\n" + temp);
}
}
catch (e)
{
Print(e + ":\n" + temp);
}
I'll bet that you see one of those messages in the log file.
In fact, these "return" statements must be the cause of the problem,
because if you replaced the entire syntax of the rule with this (or
put it at the start):
Print("Hi Jon, this is your input file: " +
FusionPro.Composition.inputFileName);
Then you would surely see the message in your log file. The fact that
you're not seeing the message from the Print function call at the end
means that that line is not being executed, which can only happen for
one of three reasons: you throw an exception, you hit a return
statement before reaching that line, or the line is conditionalized
out (such as in an "if" statement block).
Unfortunately, as the message box notes when you're in a Callback rule
and click Validate, the return value is ignored at composition time.
However, the effect of the "return" statement itself, in terms of
short-circuiting the rule's execution, is still present. So the
entire rule is silently failing with a "return" statement.
Those other calls to "print" in the sample rule are typos: the
function name is "Print", and variable names in JavaScript are indeed
case-sensitive.
Dan
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