From 5b1bef45ccc20e190057d986617669454de80983 Mon Sep 17 00:00:00 2001
From: Nick Clemens <nick@bywatersolutions.com>
Date: Fri, 20 May 2022 14:29:58 +0000
Subject: [PATCH] Bug 30824: Improve performance of BatchCommitItems
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This makes two simple changes:
- Limit TransformMarcToKoha to the fields we need
- Pass forward the biblioitemnumber when adding items to a new biblionumber

Profiling with NYTProf I saved ~8-9 seconds importing around 400 bibs/1000 items

Reducing calls in item store to use a passed biblionumber was the largest gain.

To test:
1 - Import some records and items
2 - Verify values etc., revert
3 - Apply patch
4 - Import again
5 - Verify values etc. same as before

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Joonas Kylmälä <joonas.kylmala@iki.fi>
---
 C4/ImportBatch.pm | 10 +++++-----
 C4/Items.pm       |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/C4/ImportBatch.pm b/C4/ImportBatch.pm
index 32b741fd95..e0dd051491 100644
--- a/C4/ImportBatch.pm
+++ b/C4/ImportBatch.pm
@@ -649,7 +649,7 @@ sub BatchCommitRecords {
                 ($recordid, $biblioitemnumber) = AddBiblio($marc_record, $framework);
                 $query = "UPDATE import_biblios SET matched_biblionumber = ? WHERE import_record_id = ?"; # FIXME call SetMatchedBiblionumber instead
                 if ($item_result eq 'create_new' || $item_result eq 'replace') {
-                    my ($bib_items_added, $bib_items_replaced, $bib_items_errored) = BatchCommitItems($rowref->{'import_record_id'}, $recordid, $item_result);
+                    my ($bib_items_added, $bib_items_replaced, $bib_items_errored) = BatchCommitItems($rowref->{'import_record_id'}, $recordid, $item_result, $biblioitemnumber);
                     $num_items_added += $bib_items_added;
                     $num_items_replaced += $bib_items_replaced;
                     $num_items_errored += $bib_items_errored;
@@ -735,12 +735,12 @@ sub BatchCommitRecords {
 =head2 BatchCommitItems
 
   ($num_items_added, $num_items_errored) = 
-         BatchCommitItems($import_record_id, $biblionumber);
+         BatchCommitItems($import_record_id, $biblionumber, [$action, $biblioitemnumber]);
 
 =cut
 
 sub BatchCommitItems {
-    my ( $import_record_id, $biblionumber, $action ) = @_;
+    my ( $import_record_id, $biblionumber, $action, $biblioitemnumber ) = @_;
 
     my $dbh = C4::Context->dbh;
 
@@ -765,7 +765,7 @@ sub BatchCommitItems {
         my ( $MARCfield, $MARCsubfield ) = GetMarcFromKohaField( 'items.onloan' );
         $item_marc->field($MARCfield)->delete_subfield( code => $MARCsubfield );
 
-        my $item = TransformMarcToKoha({ record => $item_marc });
+        my $item = TransformMarcToKoha({ record => $item_marc, kohafields => ['items.barcode','items.itemnumber'] });
 
         my $duplicate_barcode = exists( $item->{'barcode'} ) && Koha::Items->find({ barcode => $item->{'barcode'} });
         my $duplicate_itemnumber = exists( $item->{'itemnumber'} );
@@ -800,7 +800,7 @@ sub BatchCommitItems {
             my ( $itemtag, $itemsubfield ) = GetMarcFromKohaField( "items.itemnumber" );
             $item_marc->field($itemtag)->delete_subfield( code => $itemsubfield );
 
-            my ( $item_biblionumber, $biblioitemnumber, $itemnumber ) = AddItemFromMarc( $item_marc, $biblionumber );
+            my ( $item_biblionumber, $biblioitemnumber, $itemnumber ) = AddItemFromMarc( $item_marc, $biblionumber, {biblioitemnumber => $biblioitemnumber} );
             if( $itemnumber ) {
                 $updsth->bind_param( 1, 'imported' );
                 $updsth->bind_param( 2, $itemnumber );
diff --git a/C4/Items.pm b/C4/Items.pm
index 03305eba33..d358675513 100644
--- a/C4/Items.pm
+++ b/C4/Items.pm
@@ -162,7 +162,6 @@ sub AddItemFromMarc {
     # parse item hash from MARC
     my $frameworkcode = C4::Biblio::GetFrameworkCode($biblionumber);
     my ( $itemtag, $itemsubfield ) = C4::Biblio::GetMarcFromKohaField( "items.itemnumber" );
-
     my $localitemmarc = MARC::Record->new;
     $localitemmarc->append_fields( $source_item_marc->field($itemtag) );
 
@@ -170,6 +169,7 @@ sub AddItemFromMarc {
     my $unlinked_item_subfields = _get_unlinked_item_subfields( $localitemmarc, $frameworkcode );
     $item_values->{more_subfields_xml} = _get_unlinked_subfields_xml($unlinked_item_subfields);
     $item_values->{biblionumber} = $biblionumber;
+    $item_values->{biblioitemnumber} = $params->{biblioitemnumber};
     $item_values->{cn_source} = delete $item_values->{'items.cn_source'}; # Because of C4::Biblio::_disambiguate
     $item_values->{cn_sort}   = delete $item_values->{'items.cn_sort'};   # Because of C4::Biblio::_disambiguate
     my $item = Koha::Item->new( $item_values )->store({ skip_record_index => $params->{skip_record_index} });
-- 
2.30.2