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Jonathan Druart a881984413
Bug 23463: Use new method Koha::Object->set_or_blank 
This patch fixes an issue when editing items.

* The issue
Cannot blank a subfield when editing an item.
If you have an item with itemcallnumber=42, then edit it, blank it and
save. The itemcallnumber is still 42

* Why? (line numbers from https://gitlab.com/joubu/Koha/-/tree/bug_23463)
additem (and other item's edition forms) receives a list of tags,
subfields and values, generates a MARC::Record::XML then calls
ModItemFromMarc:

717     my $itemtosave=MARC::Record::new_from_xml($xml, 'UTF-8');
727         my $newitem = ModItemFromMarc($itemtosave, $biblionumber,
$itemnumber);

And ModItemFromMarc:
 282     my $item = TransformMarcToKoha( $localitemmarc,
$frameworkcode, 'items' );
 283     $item->{cn_source} = delete $item->{'items.cn_source'}; #
Because of C4::Biblio::_disambiguate
 284     $item_object->set($item);

ModItemFromMarc never knows that the field has been blank.
Prior to bug 23463 we had a map of default values, and ModItemFromMarc
was doing:
 426     my $item = TransformMarcToKoha( $localitemmarc,
$frameworkcode, 'items' );
 427     my $default_values = _build_default_values_for_mod_marc();
 428     foreach my $item_field ( keys %$default_values ) {
 429         $item->{$item_field} = $default_values->{$item_field}
 430           unless exists $item->{$item_field};
 431     }

I do not want to reinsert that list of default values.

Here I wrote a generic method in Koha::Object to set the value passed in parameter,
or "blank" if not passed.
It's nulled if can be set to null in DB, or the default value is retrieved from
the schema info.

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
 		2020-03-23 09:26:34 +00:00
..
AuthoritiesMarc Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Barcodes Bug 21937: Syspref autoBarcode annual doesn't increment properly barcode 2019-04-19 14:32:36 +00:00
ClassSortRoutine Bug 16011: $VERSION - Remove use vars qw(); 2016-03-24 17:20:39 +00:00
ClassSplitRoutine Bug 15836: Add the ability to defined custom methods to split call number in labels 2018-11-13 15:18:22 +00:00
Creators Bug 24545: Fix license statements 2020-02-24 13:31:26 +00:00
External Bug 22010: Check preferences for ebook integration 2019-04-30 11:42:51 +00:00
Form Bug 16259: Replace CGI->param with CGI->multi_param in list context - part 2 2016-05-16 17:28:06 +00:00
Heading Bug 24269: Adjust C4::Heading to generate headings from auth tags 2020-02-19 13:33:32 +00:00
ILSDI Bug 23531: fix ILSDI non-implemented but documented parameters 2020-03-18 08:42:31 +00:00
Installer Bug 24545: Fix license statements 2020-02-24 13:31:26 +00:00
Labels Bug 23900: Teach label maker to concat database fields 2020-03-20 15:16:17 +00:00
Linker Bug 24269: Adjust C4::Heading to generate headings from auth tags 2020-02-19 13:33:32 +00:00
Members Bug 23084: Replace grep {^$var$} with grep {$_ eq $var} 2020-02-17 10:44:45 +00:00
OAI Bug 23084: Replace grep {^$var$} with grep {$_ eq $var} 2020-02-17 10:44:45 +00:00
Output Bug 9978: Replace license header with the correct license (GPLv3+) 2015-04-20 09:59:38 -03:00
Patroncards Bug 23488: Line wrapping doesn't always respect word order in Patron card creator 2020-03-02 09:49:57 +00:00
Reports Bug 24511: Update variable names to avoid confusion 2020-01-27 10:14:15 +00:00
SIP Bug 24553: Use 'barcode' not 'item_id' when removing hold from SIP patron 2020-03-20 15:39:24 +00:00
Search Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Serials Bug 20144: [sql_modes] Add default value for subscription_numberpatterns.description in tests 2018-02-13 13:58:53 -03:00
Utils Bug 17374: Make use of fields from syspref 'DefaultPatronSearchFields' in patron search fields dropdown 2020-03-10 15:18:29 +00:00
Accounts.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Acquisition.pm Bug 23463: Remove DelItemCheck and ItemSafeToDelete 2020-03-23 09:26:31 +00:00
Auth.pm Bug 22943: Renames the in_ipset function to in_iprange in C4::Auth 2020-03-16 11:00:21 +00:00
Auth_cas_servers.yaml.sample Bug 17065 - Rename C4/Auth_cas_servers.yaml.orig 2016-08-08 13:16:36 +00:00
Auth_with_cas.pm Bug 19160: Add POD 2018-03-23 11:45:38 -03:00
Auth_with_ldap.pm Bug 16719: (QA follow-up) Remove tabs 2020-02-10 09:19:07 +00:00
Auth_with_shibboleth.pm Bug 24199: (bug 23042 follow-up) Prevent t/Auth_with_shibboleth.t to fail randomly 2019-12-10 10:43:20 +00:00
AuthoritiesMarc.pm Bug 24735: Remove QueryParser-related code 2020-03-02 11:13:03 +00:00
BackgroundJob.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Barcodes.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
Biblio.pm Bug 24827: Standardise on 'UTF-8' as the encoding name 2020-03-16 14:45:39 +00:00
Bookseller.pm Bug 24002: Incorrect DATE value: '' in C4/Bookseller.pm 2019-11-12 13:50:06 +00:00
Boolean.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
Breeding.pm Bug 11297: Add support for custom PQF attributes for Z39.50 server searches. 2020-02-19 16:07:59 +00:00
Budgets.pm Bug 24361: (bug 24217 follow-up) Fix several warnings in C4 modules 2020-01-07 13:59:51 +00:00
Calendar.pm Bug 14572 - insert_single_holiday() forces a value on an AUTO_INCREMENT column, during an INSERT 2017-07-06 14:29:04 -03:00
Charset.pm Bug 22721: Remove frameworkcode parameter in GetMarcFromKohaField calls 2019-07-15 11:28:08 +01:00
Circulation.pm Bug 23463: remove trivial UpdateHoldingbranch sub 2020-03-23 09:26:30 +00:00
ClassSortRoutine.pm Bug 16011: $VERSION - Remove comments 2016-03-24 17:20:29 +00:00
ClassSource.pm Bug 15836: Remove deprecated subroutines 2018-11-13 18:56:18 +00:00
ClassSplitRoutine.pm Bug 15836: Add the ability to defined custom methods to split call number in labels 2018-11-13 15:18:22 +00:00
Context.pm Bug 17845: Remove unused code related to printers 2020-03-10 15:18:27 +00:00
Contract.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
CourseReserves.pm Bug 23463: Replace ModItem with Koha::Item->store 2020-03-23 09:26:30 +00:00
Creators.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
Debug.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
HTML5Media.pm Bug 21742: Fix YouTube variable propagation 2018-11-01 18:59:33 +00:00
Heading.pm Bug 24269: Adjust C4::Heading to generate headings from auth tags 2020-02-19 13:33:32 +00:00
HoldsQueue.pm Bug 23934: Item level holds not checked for LocalHoldsPriority in Holds Queue 2020-01-10 16:19:40 +00:00
Images.pm Revert "Bug 21987: Do not generate true color thumbnails if not needed" 2019-11-04 13:21:53 +00:00
ImportBatch.pm Bug 23463: Remove DelItemCheck and ItemSafeToDelete 2020-03-23 09:26:31 +00:00
ImportExportFramework.pm Bug 18143: Silence ods MARC framework export flood 2019-02-19 13:52:15 +00:00
InstallAuth.pm Bug 17845: Remove unused code related to printers 2020-03-10 15:18:27 +00:00
Installer.pm Bug 24904: Speed up installer process - 1 query per table 2020-03-20 15:14:21 +00:00
ItemCirculationAlertPreference.pm Bug 15407: Koha::Patron::Categories - replace C4::Category->all 2016-09-08 13:29:03 +00:00
Items.pm Bug 23463: Use new method Koha::Object->set_or_blank 2020-03-23 09:26:34 +00:00
Koha.pm Bug 17845: Remove unused code related to printers 2020-03-10 15:18:27 +00:00
Labels.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
Languages.pm Bug 18213: Add Template plugin and fix for C4/Languages 2019-03-28 15:57:32 +00:00
Letters.pm Bug 10269: Use 'reply-to' address if passed to EnqueueLetter 2020-03-18 14:03:42 +00:00
Linker.pm Bug 9978: Replace license header with the correct license (GPLv3+) 2015-04-20 09:59:38 -03:00
Log.pm Bug 23896: logaction should pass the correct interface to Koha::Logger 2020-01-30 10:53:56 +00:00
MarcModificationTemplates.pm Bug 21831: Allow move all fields even if destination field is different 2019-05-23 14:50:57 +00:00
Matcher.pm Bug 24735: Remove QueryParser-related code 2020-03-02 11:13:03 +00:00
Members.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Message.pm Bug 21206: Replace C4::Items::GetItem 2019-02-26 13:24:07 +00:00
NewsChannels.pm Bug 24002: Incorrect DATE value: '00-00-0000' in NewsChannels.pm 2019-11-12 13:49:58 +00:00
Output.pm Bug 24369: Add CORS support to output_with_http_headers() 2020-03-05 12:59:44 +00:00
Overdues.pm Bug 23084: Replace grep {^$var$} with grep {$_ eq $var} 2020-02-17 10:44:45 +00:00
Patroncards.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
Record.pm Bug 24361: (bug 24217 follow-up) Fix several warnings in C4 modules 2020-01-07 13:59:51 +00:00
Reports.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Reserves.pm Bug 24436: Add handling for reserve transfer triggers 2020-03-20 15:59:45 +00:00
Ris.pm Bug 10306: Core module changes for multiple mappings 2017-12-07 14:44:15 -03:00
RotatingCollections.pm Bug 24299: Record 'RotatingCollection' as a transfer trigger 2020-03-20 15:54:55 +00:00
SMS.pm Bug 19134: C4::SMS falils on long driver name 2017-08-25 10:51:24 -03:00
Scheduler.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
Scrubber.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
Search.pm Bug 19279: performance of linked items in search 2020-03-18 17:51:25 +00:00
Serials.pm Bug 24002: (follow-up) Incorrect DATE value: '00-00-0000' in C4/Serials.pm 2020-02-18 13:53:31 +00:00
Service.pm Bug 7550: [QA Follow-up] Resolve param warning from sco-patron-image 2017-05-08 09:00:26 -04:00
ShelfBrowser.pm Bug 22445: Custom cover images - opac shelfbrowser 2019-10-22 15:02:48 +01:00
SocialData.pm Bug 9978: (followup) Replace license header with the correct license (GPLv3+) 2015-04-20 09:59:43 -03:00
Stats.pm Bug 23084: Replace grep {^$var$} with grep {$_ eq $var} 2020-02-17 10:44:45 +00:00
Suggestions.pm Bug 24723: Update EmailPurchaseSuggestions to use inbound_email_address 2020-03-19 09:33:48 +00:00
TTParser.pm Bug 14383: C4: Fix some typos (mostly in comments and documentation) 2015-06-22 17:34:45 -03:00
Tags.pm Bug 23084: Replace grep {^$var$} with grep {$_ eq $var} 2020-02-17 10:44:45 +00:00
Templates.pm Bug 20538: Remove the need of writing [% KOHA_VERSION %] everywhere 2018-04-13 11:49:44 -03:00
TmplToken.pm Bug 16011: $VERSION - Remove the $VERSION init 2016-03-24 17:20:28 +00:00
TmplTokenType.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
UsageStats.pm Bug 24735: Remove QueryParser-related code 2020-03-02 11:13:03 +00:00
XISBN.pm Bug 24217: use Modern::Perl for modules when strict is missing 2020-01-03 10:45:46 +00:00
XSLT.pm Bug 7611: (follow-up) separate positive and negative statuses as in the past 2020-02-17 11:21:38 +00:00