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controllers/grid/issues/ExportableIssuesListGridHandler.php

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+<?php
+
+/**
+ * @file controllers/grid/issues/IssueGridHandler.php
+ *
+ * Copyright (c) 2014-2021 Simon Fraser University
+ * Copyright (c) 2000-2021 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * @class ExportableIssuesListGridHandler
+ *
+ * @ingroup controllers_grid_issues
+ *
+ * @brief Handle exportable issues grid requests.
+ */
+
+namespace APP\controllers\grid\issues;
+
+use APP\facades\Repo;
+use PKP\controllers\grid\feature\PagingFeature;
+use PKP\controllers\grid\feature\selectableItems\SelectableItemsFeature;
+use PKP\controllers\grid\GridRow;
+
+class ExportableIssuesListGridHandler extends IssueGridHandler
+{
+    //
+    // Implemented methods from GridHandler.
+    //
+    /**
+     * @copydoc GridHandler::isDataElementSelected()
+     */
+    public function isDataElementSelected($gridDataElement)
+    {
+        return false; // Nothing is selected by default
+    }
+
+    /**
+     * @copydoc GridHandler::getSelectName()
+     */
+    public function getSelectName()
+    {
+        return 'selectedIssues';
+    }
+
+    /**
+     * @copydoc GridHandler::loadData()
+     */
+    protected function loadData($request, $filter)
+    {
+        $journal = $request->getJournal();
+
+        // Handle grid paging (deprecated style)
+
+        $rangeInfo = $this->getGridRangeInfo($request, $this->getId());
+        $collector = Repo::issue()->getCollector()
+            ->filterByContextIds([$journal->getId()]);
+
+        $totalCount = $collector->getCount();
+        $collector->limit($rangeInfo->getCount());
+        $collector->offset($rangeInfo->getOffset() + max(0, $rangeInfo->getPage() - 1) * $rangeInfo->getCount());
+
+        return new \PKP\core\VirtualArrayIterator($collector->getMany()->toArray(), $totalCount, $rangeInfo->getPage(), $rangeInfo->getCount());
+    }
+
+    /**
+     * @copydoc GridHandler::initFeatures()
+     */
+    public function initFeatures($request, $args)
+    {
+        return [new SelectableItemsFeature(), new PagingFeature()];
+    }
+
+    /**
+     * Get the row handler - override the parent row handler. We do not need grid row actions.
+     *
+     * @return GridRow
+     */
+    protected function getRowInstance()
+    {
+        return new GridRow();
+    }
+}