[Koha-bugs] [Bug 19493] Remove few warnings from circulation.pl

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19493

--- Comment #1 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
Created attachment 68288
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=68288&action=edit
Bug 19493: Remove few warnings from circulation.pl

If you click Submit on the staff home page without entering a cardnumber, you
will find these warnings in the log:
Problem = a value of override_high_holds has been passed to param without key
at /usr/share/koha/masterclone/C4/Templates.pm line 137.
Problem = a value of nopermission has been passed to param without key at
/usr/share/koha/masterclone/C4/Templates.pm line 137.
Use of uninitialized value $val in concatenation (.) or string at
/usr/share/koha/masterclone/C4/Templates.pm line 137.
Problem = a value of  has been passed to param without key at
/usr/share/koha/masterclone/C4/Templates.pm line 137.

Cause is this call to $template->param:
$template->param(
     CircAutocompl             => C4::Context->preference("CircAutocompl"),
     debarments                => GetDebarments({ borrowernumber =>
$borrowernumber }),
     todaysdate                => output_pref( { dt =>
dt_from_string()->set(hour => 23)->set(minute => 59), dateformat => 'sql' } ),
    has_modifications         => $has_modifications,
     override_high_holds       => $override_high_holds,
     nopermission              => scalar $query->param('nopermission'),

In this specific case GetDebarments returns undef in list context (empty list),
so all items in the list shift one place.
Either we should force GetDebarments to return []; or we force scalar context
in a construction like this. This patch does the last thing.

Note: The calls in memberentry.pl and moremember.pl are not affected.

Test plan:
[1] Do not apply. Click Submit without cardnumber. Check the log.
[2] Apply. Click Submit again without cardnumber. Check log.

Signed-off-by: Marcel de Rooy <m.de.rooy at rijksmuseum.nl>

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