[Koha-bugs] [Bug 35680] New: YAML system preferences cause error if syspref data is not YAML string

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=35680

            Bug ID: 35680
           Summary: YAML system preferences cause error if syspref data is
                    not YAML string
 Change sponsored?: ---
           Product: Koha
           Version: master
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Architecture, internals, and plumbing
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: pedro.amorim at ptfs-europe.com
        QA Contact: testopia at bugs.koha-community.org

If a YAML preference has a string instead of the expected format, it'll cause
an error - tested with RisExportAdditionalFields and ILLModuleDisclaimerByType
but I'm sure others may cause this too.

To reproduce:

1) Add 'string' to RisExportAdditionalFields sys pref
2) Visit RIS export link:
/cgi-bin/koha/opac-export.pl?op=export&bib=262&format=ris
3) Notice the error
Can't use string ("string") as a HASH ref while "strict refs" in use at
/kohadevbox/koha/C4/Ris.pm line 132

Not critical, but ideally an error like this should not happen in the event
that a system preference has wrong data in it.

Adding bug 33431 as "See also" even though it's not the cause of the issue - as
the test plans info there may also help here.

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