Bugzilla – Attachment 53762 Details for
Bug 16365
Selectively introduce GetMarcStructure() "unsafe" variant for better performance
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[patch]
Bug 16365 - GetMarcStructure() "unsafe" variant in PrepareItemrecordDisplay()
Bug-16365---GetMarcStructure-unsafe-variant-in-Pre.patch (text/plain), 2.55 KB, created by
Marcel de Rooy
on 2016-07-28 09:41:46 UTC
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Description:
Bug 16365 - GetMarcStructure() "unsafe" variant in PrepareItemrecordDisplay()
Filename:
MIME Type:
Creator:
Marcel de Rooy
Created:
2016-07-28 09:41:46 UTC
Size:
2.55 KB
patch
obsolete
>From 35ffe9911e55f0e3cff92709465f375571ae68b4 Mon Sep 17 00:00:00 2001 >From: Jacek Ablewicz <abl@biblos.pk.edu.pl> >Date: Wed, 27 Jul 2016 11:38:00 +0200 >Subject: [PATCH] Bug 16365 - GetMarcStructure() "unsafe" variant in > PrepareItemrecordDisplay() >Content-Type: text/plain; charset=utf-8 > >This sub is a good candidate for the "unsafe" treatment too, it doesn't >modify nor autovivify anything in the marc structure. > >Added a warning in the code regarding the $tagslib usage by the >custom item plugins, plus a small change to prevent possible >"Use of uninitialized value" warnings in the future. > >Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl> >Tested with neworderempty.pl and itemrecorddisplay.pl. >Amended slightly: Made warning less dramatic. >--- > C4/Items.pm | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > >diff --git a/C4/Items.pm b/C4/Items.pm >index 2e08679..2ad15d4 100644 >--- a/C4/Items.pm >+++ b/C4/Items.pm >@@ -2822,10 +2822,10 @@ sub PrepareItemrecordDisplay { > $frameworkcode = &GetFrameworkCode($bibnum) if $bibnum; > my ( $itemtagfield, $itemtagsubfield ) = &GetMarcFromKohaField( "items.itemnumber", $frameworkcode ); > >- # it would be perhaps beneficial (?) to call GetMarcStructure with 'unsafe' parameter >- # for performance reasons, but $tagslib may be passed to $plugin->build(), and there >- # is no way to ensure that this structure is not getting corrupted somewhere in there >- my $tagslib = &GetMarcStructure( 1, $frameworkcode ); >+ # Note: $tagslib obtained from GetMarcStructure() in 'unsafe' mode is >+ # a shared data structure. No plugin (including custom ones) should change >+ # its contents. See also GetMarcStructure. >+ my $tagslib = &GetMarcStructure( 1, $frameworkcode, { unsafe => 1 } ); > > # return nothing if we don't have found an existing framework. > return q{} unless $tagslib; >@@ -2849,13 +2849,13 @@ sub PrepareItemrecordDisplay { > $query .= qq{ ORDER BY lib}; > my $authorised_values_sth = $dbh->prepare( $query ); > foreach my $tag ( sort keys %{$tagslib} ) { >- my $previous_tag = ''; > if ( $tag ne '' ) { > > # loop through each subfield > my $cntsubf; > foreach my $subfield ( sort keys %{ $tagslib->{$tag} } ) { > next if IsMarcStructureInternal($tagslib->{$tag}{$subfield}); >+ next unless ( $tagslib->{$tag}->{$subfield}->{'tab'} ); > next if ( $tagslib->{$tag}->{$subfield}->{'tab'} ne "10" ); > my %subfield_data; > $subfield_data{tag} = $tag; >-- >1.7.10.4
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