[Koha-bugs] [Bug 15759] New: Allow Koha::Object derived objects to be used as hashrefs

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15759

            Bug ID: 15759
           Summary: Allow Koha::Object derived objects to be used as
                    hashrefs
 Change sponsored?: ---
           Product: Koha
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Architecture, internals, and plumbing
          Assignee: gmcharlt at gmail.com
          Reporter: kyle at bywatersolutions.com
        QA Contact: testopia at bugs.koha-community.org

On occasion, bugs in Koha have been revealed to be a mis-use of Koha::Object.
This seems to be due to our long standing use of hashrefs for data in Koha.

For instance, a developer may accidentally write:

my $borrowernumber = $borrower->{borrowernumber};

instead of

my $borrowernumber = $borrower->borrowernumber;

Since our object is a blessed hashref, this does not cause an error. Instead,
we just access that key of the hashref, which is almost certainly undefined.

With some extra code in Koha/Object.pm, we can allow hashref-like use of our
Objects, which will not only prevent these errors, but allow drop-in use of
Koha::Objects where we currently use hashrefs!

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