Add config setting for display of items without barcodes.

config/vufind/config.ini

@@ -399,6 +399,13 @@ title_level_holds_mode = "disabled"
 ; Whether to display the item barcode for each loan. Default is false.
 ;display_checked_out_item_barcode = true
 
+; Whether to display items without barcodes in the Holdings tab. Prior to VuFind
+; 9.0, hiding items without barcodes was VuFind's default behavior. The current
+; default value is true -- to always display ALL items.
+; If you need to apply more complex filtering rules to Holdings display, you
+; can extend/override the VuFind\View\Helper\Root\Holdings::holdingIsVisible method.
+;display_items_without_barcodes = true
+
 ; This section controls features related to user accounts
 [Account]
 ; Allow the user to set a home library through the Profile screen, which will

module/VuFind/src/VuFind/View/Helper/Root/Holdings.php

@@ -0,0 +1,72 @@
+<?php
+/**
+ * View helper to support ILS holdings display
+ *
+ * PHP version 7
+ *
+ * Copyright (C) Villanova University 2022.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category VuFind
+ * @package  View_Helpers
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+namespace VuFind\View\Helper\Root;
+
+/**
+ * View helper to support ILS holdings display
+ *
+ * @category VuFind
+ * @package  View_Helpers
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+class Holdings extends \Laminas\View\Helper\AbstractHelper
+{
+    /**
+     * Configuration
+     *
+     * @var array
+     */
+    protected $config;
+
+    /**
+     * Constructor
+     *
+     * @param array $config Configuration
+     */
+    public function __construct(array $config)
+    {
+        $this->config = $config;
+    }
+
+    /**
+     * Is the provided holdings array (from an ILS driver's getHolding method)
+     * suitable for display to the end user?
+     *
+     * @param array $holding Holding to evaluate
+     *
+     * @return bool
+     */
+    public function holdingIsVisible(array $holding): bool
+    {
+        $showEmptyBarcodes
+            = (bool)($this->config['display_items_without_barcodes'] ?? true);
+        return $showEmptyBarcodes || strlen($holding['barcode'] ?? '') > 0;
+    }
+}

module/VuFind/src/VuFind/View/Helper/Root/HoldingsFactory.php

@@ -0,0 +1,70 @@
+<?php
+/**
+ * Holdings helper factory.
+ *
+ * PHP version 7
+ *
+ * Copyright (C) Villanova University 2022.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category VuFind
+ * @package  View_Helpers
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+namespace VuFind\View\Helper\Root;
+
+use Laminas\ServiceManager\Exception\ServiceNotCreatedException;
+use Laminas\ServiceManager\Exception\ServiceNotFoundException;
+use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerExceptionInterface as ContainerException;
+use Psr\Container\ContainerInterface;
+
+/**
+ * Holdings helper factory.
+ *
+ * @category VuFind
+ * @package  View_Helpers
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+class HoldingsFactory implements FactoryInterface
+{
+    /**
+     * Create an object
+     *
+     * @param ContainerInterface $container     Service manager
+     * @param string             $requestedName Service being created
+     * @param null|array         $options       Extra options (optional)
+     *
+     * @return object
+     *
+     * @throws ServiceNotFoundException if unable to resolve the service.
+     * @throws ServiceNotCreatedException if an exception is raised when
+     * creating a service.
+     * @throws ContainerException&\Throwable if any other error occurs
+     */
+    public function __invoke(
+        ContainerInterface $container,
+        $requestedName,
+        array $options = null
+    ) {
+        $full = $container->get(\VuFind\Config\PluginManager::class)->get('config');
+        $config = isset($full->Catalog) ? $full->Catalog->toArray() : [];
+        return new $requestedName($config);
+    }
+}

themes/bootstrap3/templates/RecordTab/holdingsils/extended.phtml

@@ -1,4 +1,4 @@
-<?php if (strlen($holding['barcode'] ?? '') > 0): ?>
+<?php if ($this->holdings()->holdingIsVisible($holding)): ?>
   <?php
     $check = $holding['check'] ?? false;
     $checkStorageRetrievalRequest = $holding['checkStorageRetrievalRequest'] ?? false;

themes/bootstrap3/templates/RecordTab/holdingsils/standard.phtml

@@ -1,4 +1,4 @@
-<?php if (strlen($holding['barcode'] ?? '') > 0): ?>
+<?php if ($this->holdings()->holdingIsVisible($holding)): ?>
   <?php
     $check = $holding['check'] ?? false;
     $checkStorageRetrievalRequest = $holding['checkStorageRetrievalRequest'] ?? false;

themes/root/theme.config.php

@@ -33,6 +33,7 @@
             'VuFind\View\Helper\Root\HelpText' => 'VuFind\View\Helper\Root\HelpTextFactory',
             'VuFind\View\Helper\Root\Highlight' => 'Laminas\ServiceManager\Factory\InvokableFactory',
             'VuFind\View\Helper\Root\HistoryLabel' => 'VuFind\View\Helper\Root\HistoryLabelFactory',
+            'VuFind\View\Helper\Root\Holdings' => 'VuFind\View\Helper\Root\HoldingsFactory',
             'VuFind\View\Helper\Root\Icon' => 'VuFind\View\Helper\Root\IconFactory',
             'VuFind\View\Helper\Root\Ils' => 'VuFind\View\Helper\Root\IlsFactory',
             'VuFind\View\Helper\Root\JsIcons' => 'VuFind\View\Helper\Root\JsIconsFactory',
@@ -114,6 +115,7 @@
             'helpText' => 'VuFind\View\Helper\Root\HelpText',
             'highlight' => 'VuFind\View\Helper\Root\Highlight',
             'historylabel' => 'VuFind\View\Helper\Root\HistoryLabel',
+            'holdings' => 'VuFind\View\Helper\Root\Holdings',
             'ils' => 'VuFind\View\Helper\Root\Ils',
             'icon' => 'VuFind\View\Helper\Root\Icon',
             'jsIcons' => 'VuFind\View\Helper\Root\JsIcons',