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Vince_Beltz_959's avatar
Vince_Beltz_959
Icon for Nimbostratus rankNimbostratus
Apr 15, 2009

Simple Question

I have an external integer data group containing a single numeric value. I want my iRule to read that value, and set the value of a variable equal to it. I've been looking at findclass and getfield, but only want that first (and only) value. Help?

 

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iRules

3 Replies

  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Apr 16, 2009
    Have you looked into lassign ( Click here)?

     

     

    I suppose you can do lassign against a findclass to get a variable assigned.

     

     

    hope this helps

     

    CB
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Apr 16, 2009
    It looks like the lassign command was added in TCL v8.5. F5 is using 8.4.x in all existing versions.

     

     

    You could use [lindex $::datagroup 0] to get the first (or only) element of the datagroup.

     

     

    Aaron
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Feb 13, 2012
    In 10.x+ you can use class element for this:

     

     

    http://devcentral.f5.com/wiki/iRules.class.ashx

     

     

    class element [< options >] < index > < class >

     

     

    Aaron