MDL-44911 use unknown_logged class when viewing unknown events in rep…

…orts

lang/en/moodle.php

@@ -739,6 +739,7 @@
 $string['eventcoursemoduleinstancelistviewed'] = 'Course module instance list viewed';
 $string['eventemailfailed'] = 'Email failed to send';
 $string['eventname'] = 'Event name';
+$string['eventunknownlogged'] = 'Unknown event';
 $string['eventusercreated'] = 'User created';
 $string['eventuserdeleted'] = 'User deleted';
 $string['eventuserlistviewed'] = 'User list viewed';

lib/classes/event/base.php

@@ -338,7 +338,7 @@ public static final function restore(array $data, array $logextra) {
         }
 
         if (!class_exists($classname)) {
-            return false;
+            return self::restore_unknown($data, $logextra);
         }
         $event = new $classname();
         if (!($event instanceof \core\event\base)) {
@@ -370,6 +370,27 @@ public static final function restore(array $data, array $logextra) {
         return $event;
     }
 
+    /**
+     * Restore unknown event.
+     *
+     * @param array $data
+     * @param array $logextra
+     * @return unknown_logged
+     */
+    protected static final function restore_unknown(array $data, array $logextra) {
+        $classname = '\core\event\unknown_logged';
+
+        /** @var unknown_logged $event */
+        $event = new $classname();
+        $event->restored = true;
+        $event->triggered = true;
+        $event->dispatched = true;
+        $event->data = $data;
+        $event->logextra = $logextra;
+
+        return $event;
+    }
+
     /**
      * Create fake event from legacy log data.
      *

lib/classes/event/unknown_logged.php

@@ -0,0 +1,40 @@
+<?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/>.
+
+namespace core\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Unknown event class.
+ *
+ * @package    core
+ * @copyright  2014 Petr Skoda
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class unknown_logged extends base {
+    public function init() {
+        throw new \coding_exception('unknown events cannot be triggered');
+    }
+
+    public static function get_name() {
+        return get_string('eventunknownlogged', 'core');
+    }
+
+    public function get_description() {
+        return 'Unknown event (' . $this->eventname . ')';
+    }
+}

lib/tests/event_unknown_logged_test.php

@@ -0,0 +1,53 @@
+<?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/>.
+
+/**
+ * Tests for event manager, base event and observers.
+ *
+ * @package    core
+ * @category   phpunit
+ * @copyright  2014 Petr Skoda
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once(__DIR__.'/fixtures/event_fixtures.php');
+
+class core_event_unknown_logged_testcase extends advanced_testcase {
+
+    public function test_restore_event() {
+        $event1 = \core_tests\event\unittest_executed::create(array('context' => context_system::instance(), 'other' => array('sample' => 1, 'xx' => 10)));
+        $data1 = $event1->get_data();
+
+        $data1['eventname'] = '\mod_xx\event\xx_yy';
+        $data1['component'] = 'mod_xx';
+        $data1['action'] = 'yy';
+        $data1['target'] = 'xx';
+        $extra1 = array('origin' => 'cli');
+
+        $event2 = \core\event\base::restore($data1, $extra1);
+        $data2 = $event2->get_data();
+        $extra2 = $event2->get_logextra();
+
+        $this->assertInstanceOf('core\event\unknown_logged', $event2);
+        $this->assertTrue($event2->is_triggered());
+        $this->assertTrue($event2->is_restored());
+        $this->assertNull($event2->get_url());
+        $this->assertEquals($data1, $data2);
+        $this->assertEquals($extra1, $extra2);
+    }
+}