MDL-61959 scormreport_basic: Implement privacy API

mod/scorm/report/basic/classes/privacy/provider.php

@@ -0,0 +1,92 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for scormreport_basic.
+ *
+ * @package    scormreport_basic
+ * @copyright  2018 Sara Arjona <sara@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace scormreport_basic\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+use \core_privacy\local\metadata\collection;
+use \core_privacy\local\request\transform;
+use \core_privacy\local\request\writer;
+
+/**
+ * Privacy Subsystem for scormreport_basic.
+ *
+ * @copyright  2018 Sara Arjona <sara@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements
+    \core_privacy\local\metadata\provider,
+    \core_privacy\local\request\user_preference_provider {
+
+    /**
+     * Returns meta data about this system.
+     *
+     * @param  collection $collection The initialised item collection to add items to.
+     * @return collection A listing of user data stored through this system.
+     */
+    public static function get_metadata(collection $collection) {
+        // User preferences shared between different scorm reports.
+        $collection->add_user_preference('scorm_report_pagesize', 'privacy:metadata:preference:scorm_report_pagesize');
+
+        // User preferences specific for this scorm report.
+        $collection->add_user_preference('scorm_report_detailed', 'privacy:metadata:preference:scorm_report_detailed');
+
+        return $collection;
+    }
+
+    /**
+     * Store all user preferences for the plugin.
+     *
+     * @param  int $userid The userid of the user whose data is to be exported.
+     */
+    public static function export_user_preferences($userid) {
+        static::get_and_export_user_preference($userid, 'scorm_report_pagesize');
+        static::get_and_export_user_preference($userid, 'scorm_report_detailed', true);
+    }
+
+    /**
+     * Get and export a user preference.
+     *
+     * @param  int     $userid The userid of the user whose data is to be exported.
+     * @param  string  $userpreference The user preference to export.
+     * @param  boolean $transform If true, transform value to yesno.
+     */
+    protected static function get_and_export_user_preference($userid, $userpreference, $transform = false) {
+        $prefvalue = get_user_preferences($userpreference, null, $userid);
+        if ($prefvalue !== null) {
+            if ($transform) {
+                $transformedvalue = transform::yesno($prefvalue);
+            } else {
+                $transformedvalue = $prefvalue;
+            }
+            writer::export_user_preference(
+                'scormreport_basic',
+                $userpreference,
+                $transformedvalue,
+                get_string('privacy:metadata:preference:'.$userpreference, 'scormreport_basic')
+            );
+        }
+    }
+}

mod/scorm/report/basic/lang/en/scormreport_basic.php

@@ -24,3 +24,5 @@
  */
 
 $string['pluginname'] = 'Basic report';
+$string['privacy:metadata:preference:scorm_report_detailed'] = 'Whether to track details in the SCORM basic report';
+$string['privacy:metadata:preference:scorm_report_pagesize'] = 'Number of users to display in the SCORM reports';

mod/scorm/report/basic/tests/privacy_test.php

@@ -0,0 +1,85 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Unit tests for the scormreport_basic implementation of the privacy API.
+ *
+ * @package    scormreport_basic
+ * @category   test
+ * @copyright  2018 Sara Arjona <sara@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+use core_privacy\local\request\writer;
+use scormreport_basic\privacy\provider;
+
+/**
+ * Unit tests for the scormreport_basic implementation of the privacy API.
+ *
+ * @copyright  2018 Sara Arjona <sara@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class scormreport_basic_privacy_testcase extends \core_privacy\tests\provider_testcase {
+
+    /**
+     * Basic setup for these tests.
+     */
+    public function setUp() {
+        $this->resetAfterTest(true);
+    }
+
+    /**
+     * Ensure that export_user_preferences returns no data if the user has no data.
+     */
+    public function test_export_user_preferences_not_defined() {
+        $user = \core_user::get_user_by_username('admin');
+        provider::export_user_preferences($user->id);
+
+        $writer = writer::with_context(\context_system::instance());
+        $this->assertFalse($writer->has_any_data());
+    }
+
+    /**
+     * Ensure that export_user_preferences returns single preferences.
+     */
+    public function test_export_user_preferences_single() {
+        // Define a user preference.
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
+        set_user_preference('scorm_report_detailed', 1);
+        set_user_preference('scorm_report_pagesize', 50);
+
+        // Validate exported data.
+        provider::export_user_preferences($user->id);
+        $context = \context_user::instance($user->id);
+        $writer = writer::with_context($context);
+        $this->assertTrue($writer->has_any_data());
+        $prefs = $writer->get_user_preferences('scormreport_basic');
+        $this->assertCount(2, (array) $prefs);
+        $this->assertEquals(
+            get_string('privacy:metadata:preference:scorm_report_detailed', 'scormreport_basic'),
+            $prefs->scorm_report_detailed->description
+        );
+        $this->assertEquals(get_string('yes'), $prefs->scorm_report_detailed->value);
+        $this->assertEquals(
+            get_string('privacy:metadata:preference:scorm_report_pagesize', 'scormreport_basic'),
+            $prefs->scorm_report_pagesize->description
+        );
+        $this->assertEquals(50, $prefs->scorm_report_pagesize->value);
+    }
+}