Problem Comparing Rv's

[fluffybunny]

Hi,

 

I am using and Evaluate Module to compare 2 RV's. In my example one is set to 0 and one is set to 1. I am getting an error as shown here:

 

[HOURLY_STOP]{0}[HOURLY_DURATION]{1}[MINS_DURATION]{18}[MAX_DURATION]{1}[OFFID]{

29}[Valid_Veri_Num_ResultReturn]{success}[Hour_Or_Single1_Input]{Y}[Hour_Or_Sing

e1]{Y}[First_Call?_Input]{len(3/15/2007 6:52:40 PM)>2}[First_Call?]{len(3/15/2007 6:52:40 PM)>2}[Already_Stopped?_Input]{len(0)>2}[Already_Stopped?]{False}[update_Or_Stop]{1}

201048.70 1 rv replace end: [$RV(HOURLY_DURATION)<$RV(MAX_DURATION)]

201048.70 1 eval[$RV(HOURLY_DURATION)<$RV(MAX_DURATION)]

201048.70 1 Error: 1032

201048.70 1 rvns add [Exceed_Max_Hrs_Input]{$RV(HOURLY_DURATION)<$RV(MAX_DURATION)}

201048.70 1 rvns add [Exceed_Max_Hrs]{$RV(HOURLY_DURATION)<$RV(MAX_DURATION)}

201048.70 1 Eval Expr result:[$RV(HOURLY_DURATION)<$RV(MAX_DURATION)]

201048.70 1 path {$RV(HOURLY_DURATION)<$RV(MAX_DURATION)} not found

201048.70 1 matching path not found

201048.70 1 next module is [update_Caller_Start] (idx=61)

201048.70 1 matching path was found

201048.70 1 fn RunModule start [say Numbers,[update_Caller_Start],61,,]

201048.70 1 timer clear

201048.70 1 rv replace start: [$RV[Hourly_Duration]]

 

 

The expression I am trying to evaluate is $RV(HOURLY_DURATION)<$RV(MAX_DURATION) and I have both True and False paths defined.

 

I am using VG version 6.0.3302

 

Thanks

[SupportTeam]

Your expression:

 

$RV(HOURLY_DURATION)<$RV(MAX_DURATION)

 

has round brackets "(" instead od square brackets "["

 

This expression is correct:

 

$RV[HOURLY_DURATION]<$RV[MAX_DURATION]

[fluffybunny]

Thanks very much. Sorry for bothering you with such a silly error !

 

Do you have any plans to introduce a syntax checker in VG for the future?

 

Thanks for the super fast response by the way.

[ktruk]

FluffyBunny: be careful of numeric RV comparisons, as sometimes you may get a 'null' RV being compared with a number, eg: '0 > (null)' which gives an error. Alternatives include doing textual comparisons, putting the RVs in quotes, so that "0" > "" will (probably) work and not give an error or test the RV value in a nested if statement, eg: "If $RV = "" then doThis else doThat".

 

My favorite quick fix is to prefix the $RV with a zero, eg:

 

0$RV1 > 0$RV2

 

so that is if the RV is null, you will get 0 > 0, which will pass syntax check. If the RV is not null, then the 'leading zero' is ignored, eg: 0 > 01 = true!

[fluffybunny]

Hi ktruk,

 

I love your quick fix! I was actually ensuring that I didnt have nulls earlier on in the script, by ensuring the RV is set to something, even if it is 0. But using your method I dont even need to do that.

 

Nice tip, thanks!

[ktruk]

FluffyBunny: You're welcome! Glad you liked it - and - quick correction - of course 0 > 01 = false !!