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Regular Expression can work with {Common:} Token, but not with {WorkflowVariable:)

  • April 8, 2020
  • 2 replies
  • 27 views
Nintex Partner
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I tried to use the Regular Expression Action and define a Pattern.

If I want to use a "Common" Variable inside the Pattern Field, it is replaced with the actual value, before the Pattern is executed.

({Common:WebUrl})(?!.*1)

 

Is transfered to 

(http://MyURl/site)(?!.*1)

and then executed.

 

But When I try to use a WorkflowVariable instead:

({WorkflowVariable:MyVariable}})(?!.*1)

 

It is not replaced and the Pattern is used with the {WorfklowVariable....} part.

 

Do I need to escape the {WorkflowVariable} further, or is this just not supported, and only the {Common} Tag can be replaced ?

    2 replies

    Simon Muntz
    Nintex Partner
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    • Simon MuntzNintex Partner
    • Nintex Partner
    • April 9, 2020
    Hi,

    I did a quick test in the latest build of Nintex Workflow 2013 and found that I could use either a workflow variable or common reference and both worked as expected.
    I didnt use a URL as it was a simple test but it worked either way.
    We provide Nintex Training & Consulting - https://www.definiti.com.au/
    Nintex Partner
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    • LevianiNintex Partner
    • Author
    • Nintex Partner
    • April 13, 2020

    Ok, I found the root cause.

     

    As there was a condition in which the variable would not be set to a value, it could be empty.

    The interesting part was, even with the variable not initialised I didn't get an exception, when Nintex tried to insert the Variable. It just used the {WorkflowVariable:MyVariable} syntax instead, and put that into the Regular Expression action.

     

    So yes, the Action can take both kinds of Tokens, if there are values inside it :)

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