Add simple record class for use in lightweight responses.

module/VuFindSearch/src/VuFindSearch/Response/SimpleRecord.php

+<?php
+/**
+ * A minimal record class for wrapping an array of fields
+ *
+ * PHP version 7
+ *
+ * Copyright (C) The National Library of Finland
+ *
+ * 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  Sitemap
+ * @author   Ere Maijala <ere.maijala@helsinki.fi>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org Main Page
+ */
+namespace VuFindSearch\Response;
+
+/**
+ * A minimal record class for wrapping an array of fields
+ *
+ * @category VuFind
+ * @package  Sitemap
+ * @author   Ere Maijala <ere.maijala@helsinki.fi>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org Main Page
+ */
+class SimpleRecord implements RecordInterface
+{
+    /**
+     * Source backend identifier
+     */
+    protected $sourceId = DEFAULT_SEARCH_BACKEND;
+
+    /**
+     * Field data
+     *
+     * @var array
+     */
+    protected $fields = [];
+
+    /**
+     * Constructor
+     *
+     * @param array $fields Raw data
+     */
+    public function __construct($fields)
+    {
+        $this->fields = $fields;
+    }
+
+    /**
+     * Get field contents.
+     *
+     * @param string $field Field to get
+     *
+     * @return mixed
+     */
+    public function get($field)
+    {
+        return $this->fields[$field] ?? null;
+    }
+
+    /**
+     * Set the source backend identifier.
+     *
+     * @param string $identifier Backend identifier
+     *
+     * @return void
+     */
+    public function setSourceIdentifier($identifier)
+    {
+        $this->sourceId = $identifier;
+    }
+
+    /**
+     * Return the source backend identifier.
+     *
+     * @return string
+     */
+    public function getSourceIdentifier()
+    {
+        return $this->sourceId;
+    }
+}

module/VuFindSearch/tests/unit-tests/src/VuFindTest/Response/SimpleRecordTest.php

+<?php
+
+/**
+ * Unit tests for SimpleRecord class.
+ *
+ * PHP version 7
+ *
+ * Copyright (C) Villanova University 2020.
+ *
+ * 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  Search
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org
+ */
+namespace VuFindTest\Response;
+
+use PHPUnit\Framework\TestCase;
+use VuFindSearch\Response\SimpleRecord;
+
+/**
+ * Unit tests for SimpleRecord class.
+ *
+ * @category VuFind
+ * @package  Search
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org
+ */
+class SimpleRecordTest extends TestCase
+{
+    /**
+     * Test for expected default source ID.
+     *
+     * @return void
+     */
+    public function testDefaultSourceId()
+    {
+        $record = new SimpleRecord([]);
+        $this->assertEquals(DEFAULT_SEARCH_BACKEND, $record->getSourceIdentifier());
+    }
+
+    /**
+     * Test that we can change default source ID.
+     *
+     * @return void
+     */
+    public function testSetSourceId()
+    {
+        $record = new SimpleRecord([]);
+        $record->setSourceIdentifier('foo');
+        $this->assertEquals('foo', $record->getSourceIdentifier());
+    }
+
+    /**
+     * Test retrieving data fields.
+     *
+     * @return void
+     */
+    public function testGetFields()
+    {
+        $record = new SimpleRecord(['foo' => 'bar']);
+        $this->assertEquals('bar', $record->get('foo'));
+    }
+}