Bug 26302: Add dbrev for two new prefs

Adding two prefs:
    resultsMaxItems
    resultsMaxItemsUnavailable

Test plan:
Check Preferences/OPAC/Appearance.

Signed-off-by: David Nind <david@davidnind.com>

Signed-off-by: Owen Leonard <oleonard@myacpl.org>

Signed-off-by: David Nind <david@davidnind.com>

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

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

installer/data/mysql/atomicupdate/bug_26302.perl

@@ -0,0 +1,9 @@
+$DBversion = 'XXX'; # will be replaced by the RM
+if( CheckVersion( $DBversion ) ) {
+    $dbh->do(q|
+        INSERT IGNORE INTO systempreferences (variable, value, options, explanation, type) VALUES
+            ('resultsMaxItems','2','','Maximum number of available items displayed in search results','Integer'),
+            ('resultsMaxItemsUnavailable','1','','Maximum number of unavailable items displayed in search results','Integer')
+    |);
+    NewVersion( $DBversion, 26302, "Add preferences resultsMaxItems and resultsMaxItemsUnavailable");
+}

installer/data/mysql/mandatory/sysprefs.sql

@@ -574,6 +574,8 @@ INSERT INTO systempreferences ( `variable`, `value`, `options`, `explanation`, `
 ('RestrictedPageContent','',NULL,'HTML content of the restricted page','TextArea'),
 ('RestrictedPageTitle','',NULL,'Title of the restricted page (breadcrumb and header)','Free'),
 ('RestrictionBlockRenewing','0',NULL,'If patron is restricted, should renewal be allowed or blocked','YesNo'),
+('resultsMaxItems','2','','Maximum number of available items displayed in search results','Integer'),
+('resultsMaxItemsUnavailable','1','','Maximum number of unavailable items displayed in search results','Integer'),
 ('ReturnBeforeExpiry','0',NULL,'If ON, checkout will be prevented if returndate is after patron card expiry','YesNo'),
 ('ReturnLog','1',NULL,'If ON, enables the circulation (returns) log','YesNo'),
 ('ReturnpathDefault','',NULL,'Use this email address as return path or bounce address for undeliverable emails','Free'),

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

@@ -343,6 +343,13 @@ OPAC:
             - "List the following not for loan statuses as available for reference in OPAC search results:"
             - pref: Reference_NFL_Statuses
             - "(Use | as delimiter.)"
+        -
+            - Show no more than
+            - pref: resultsMaxItems
+            - (available) individual items on the OPAC XSLT search results, and show no more than
+            - pref: resultsMaxItemsUnavailable
+            - "'really unavailable' individual items in categories like Checked out, Damaged, On Hold, etc."
+
     Features:
         -
             - pref: OPACReportProblem