[Koha-bugs] [Bug 25006] Koha::Item->as_marc_field generates undef subfields

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=25006

--- Comment #2 from Tomás Cohen Arazi <tomascohen at gmail.com> ---
Created attachment 102017
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=102017&action=edit
Bug 25006: Make Koha::Item->as_marc_field skip undefined subfields

This patch makes as_marc_field skip subfields that don't have a value or
contains an empty string (replicating C4::Items:1021 logic).

To test:
1. Apply the regression tests patch
2. Run:
   $ kshell
  k$ prove t/db_dependent/Koha/Item.t
=> FAIL: Tests fail because the generated MARC::Field contains undef
subfields.
3. Apply this patch
4. Repeat 2.
=> SUCCESS: Tests pass! Undefined and empty subfields are skipped!
5. Sign off :-D

Signed-off-by: Tomas Cohen Arazi <tomascohen at theke.io>

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