topic Re: execute this command in Active IQ Unified Manager Discussions

execute this command

cscott — Thu, 05 Jun 2025 06:06:00 GMT

I am setting up a POC for customer controlled DR tests. We are looking to start with a maximum of 5 volumes per job, so I want to setup up a workflow with 5 rows.

I have created the required Break VSM Only(just a break, no release) and Resync commands. I want to use the execute this command to only run if the customer has entered another destination frame. Using only a single row, this works without issue.

To this end I have added 4 additional rows to the workflows. I have tried to use Advanced >> "If the following epxression is TRUE" using ( $dest_array2 != null ). However it does not appear that the MVEL function can see the user inputs of $dest_array2, $dest_array3, etc.

So my question is, is there a way for me to accomplish this in the manner I am attempting? I really want to avoid having multiple workflows for the same basic request. I would swear I saw this in a video, but cannot find anything on this now.

Thank you,

-Scott

Re: execute this command

dekel — Sun, 07 Apr 2013 06:43:10 GMT

Hi,

There are two main ways to do it ,depends on you r workflow logic

1.Disabling the command based on expression

"If the following expression is TRUE" using ( $dest_array2 != '').

2.Disabling the command based on search results

Re: execute this command

cscott — Sun, 07 Apr 2013 14:33:52 GMT

Thank you very much.

I am confused on why != "" is working over != null. In trying to learn all parts of WFA better I have been reading up on MVEL at codehaus and they do not showing this as a valid method for null string comparison.

Thanks again,

Scott

Re: execute this command

dekel — Sun, 07 Apr 2013 14:56:48 GMT

HI,

In WFA in case the User Input has no value it equals an empty String.

Therefor the clause $dest_array2 != null equals TRUE.