in reply to Re^5: Breaking issue
in thread Breaking issue

if ($scan = PERSONID) { # ... if ($transaction->{'STATE'} = PERSONID) # ... if ($transaction -> {'STATE'} = UPDATE) {

Are you aware that those are assignments and not comparisons?

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Re^7: Breaking issue
by jayvillach (Novice) on Jul 20, 2017 at 09:17 UTC
    Yes Iknow it is assignment. For the scan and state of person ID we have separate variables here. But in the code given here i have wrote the same.
      But an assignment doesn't make much sense, in this case. Assignment in an if-condition is useful only if you need to reuse that condition value, e.g. instead of
      if (complicated == condition) { do something with the same complicated == condition }
      we can write
      $value = complicated == condition; if ($value) { do something with the same $value }
      or shorter, similiar to your code:
      if ($value = complicated == condition) { do something with the same $value }
      so that one doesn't need parse the complicated == condition again to see that it's the same in both places. But in your example that would be pointless because what I dubbed "complicated == condition" is just a single value which seems to remain unchanged.

      And now for something completely different: In the OP, you mentioned a library. Have you heard about / looked into Koha, an open source LMS written in Perl?