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lib/pkp/classes/statistics/TemporaryInstitutionsDAO.php

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+<?php
+
+/**
+ * @file classes/statistics/TemporaryInstitutionsDAO.php
+ *
+ * Copyright (c) 2022 Simon Fraser University
+ * Copyright (c) 2022 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * @class TemporaryInstitutionsDAO
+ *
+ * @ingroup statistics
+ *
+ * @brief Operations for retrieving and adding the normalized data for institutions usage stats temporary records.
+ */
+
+namespace PKP\statistics;
+
+use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\DB;
+
+class TemporaryInstitutionsDAO
+{
+    /** The name of the table */
+    public string $table = 'usage_stats_institution_temporary_records';
+
+    /**
+     * Insert the institution ids to normalize the data in temporary tables.
+     */
+    public function insert(array $institutionIds, int $lineNumber, string $loadId): void
+    {
+        foreach ($institutionIds as $institutionId) {
+            DB::table($this->table)->insert([
+                'load_id' => $loadId,
+                'line_number' => $lineNumber,
+                'institution_id' => $institutionId
+            ]);
+        }
+    }
+
+    /**
+     * Delete all records associated
+     * with the passed load id.
+     */
+    public function deleteByLoadId(string $loadId): void
+    {
+        DB::table($this->table)->where('load_id', '=', $loadId)->delete();
+    }
+
+    /**
+     * Retrieve all distinct institution IDs for the given load id.
+     */
+    public function getInstitutionIdsByLoadId(string $loadId): Collection
+    {
+        $institutionIds = DB::table($this->table)
+            ->select('institution_id')
+            ->distinct()
+            ->where('load_id', '=', $loadId)
+            ->pluck('institution_id');
+        return $institutionIds;
+    }
+}