Bug 20310: Adding a pref to control behavior

If people want to control the redirection, we could add a pref
like ArticleRequestsHostRedirection. If it is not enabled,
the party is over.

Test plan:
Test if redirection stops on a child and host when you disable.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

Koha/Biblio.pm

@@ -910,6 +910,7 @@ sub host_record {
     my ($self, $params) = @_;
     my $no_items = $params->{no_items};
     return if C4::Context->preference('marcflavour') eq 'UNIMARC'; # TODO
+    return if !C4::Context->preference('ArticleRequestsHostRedirection');
     return if $params->{no_items} && $self->items->count > 0;
 
     my $record;

installer/data/mysql/atomicupdate/bug_20130.perl

@@ -0,0 +1,8 @@
+$DBversion = 'XXX'; # will be replaced by the RM
+if( CheckVersion( $DBversion ) ) {
+    $dbh->do(q{
+        INSERT IGNORE INTO systempreferences ( `variable`, `value`, `options`, `explanation`, `type` ) VALUES
+            ('ArticleRequestsHostRedirection', '0', NULL, 'Enables redirection from child to host', 'YesNo')
+    });
+    NewVersion( $DBversion, 20310, "Add pref ArticleRequestsHostRedirection");
+}

installer/data/mysql/mandatory/sysprefs.sql

@@ -56,6 +56,7 @@ INSERT INTO systempreferences ( `variable`, `value`, `options`, `explanation`, `
 ('AnonSuggestions','0',NULL,'Set to enable Anonymous suggestions to AnonymousPatron borrowernumber','YesNo'),
 ('AnonymousPatron','0',NULL,'Set the identifier (borrowernumber) of the anonymous patron. Used for suggestion and checkout history privacy',''),
 ('ArticleRequests', '0', NULL, 'Enables the article request feature', 'YesNo'),
+('ArticleRequestsHostRedirection', '0', NULL, 'Enables redirection from child to host', 'YesNo'),
 ('ArticleRequestsLinkControl', 'calc', 'always|calc', 'Control display of article request link on search results', 'Choice'),
 ('ArticleRequestsMandatoryFields', '', NULL, 'Comma delimited list of required fields for bibs where article requests rule = ''yes''', 'multiple'),
 ('ArticleRequestsMandatoryFieldsItemOnly', '', NULL, 'Comma delimited list of required fields for bibs where article requests rule = ''item_only''', 'multiple'),

koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/circulation.pref

@@ -1192,6 +1192,12 @@ Circulation:
                   1: Enable
                   0: "Don't enable"
             - patrons to place article requests.
+        -
+            - pref: ArticleRequestsHostRedirection
+              choices:
+                  yes: Enable
+                  no: Disable
+            - " redirection from child to host based on MARC21 773$w when the child has no items."
         -
             - pref: ArticleRequestsLinkControl
               choices:

t/db_dependent/Koha/Biblio/host_record.t

@@ -40,6 +40,7 @@ subtest 'host_record' => sub {
 
     t::lib::Mocks::mock_preference( 'marcflavour', 'MARC21' );
     t::lib::Mocks::mock_preference( 'MARCOrgCode', 'xyz' );
+    t::lib::Mocks::mock_preference( 'ArticleRequestsHostRedirection', 1 );
 
     my $bib1 = $builder->build_object({ class => 'Koha::Biblios' });
     my $bib2 = $builder->build_object({ class => 'Koha::Biblios' });