public function test_mod_anonforum_set_maildigest()
 {
     global $USER, $DB;
     $this->resetAfterTest(true);
     // Create a user.
     $user = self::getDataGenerator()->create_user();
     // Set to the user.
     self::setUser($user);
     // Create courses to add the modules.
     $course1 = self::getDataGenerator()->create_course();
     $anonforumids = array();
     // First forum.
     $record = new stdClass();
     $record->introformat = FORMAT_HTML;
     $record->course = $course1->id;
     $anonforum1 = self::getDataGenerator()->create_module('anonforum', $record);
     $anonforumids[] = $anonforum1->id;
     // Check the forum was correctly created.
     list($test, $params) = $DB->get_in_or_equal($anonforumids, SQL_PARAMS_NAMED, 'anonforum');
     $this->assertEquals(count($anonforumids), $DB->count_records_select('anonforum', 'id ' . $test, $params));
     // Enrol the user in the courses.
     // DataGenerator->enrol_user automatically sets a role for the user.
     $this->getDataGenerator()->enrol_user($user->id, $course1->id, null, 'manual');
     // Confirm that there is no current value.
     $currentsetting = $DB->get_record('anonforum_digests', array('anonforum' => $anonforum1->id, 'userid' => $user->id));
     $this->assertFalse($currentsetting);
     // Test with each of the valid values:
     // 0, 1, and 2 are valid values.
     anonforum_set_user_maildigest($anonforum1, 0, $user);
     $currentsetting = $DB->get_record('anonforum_digests', array('anonforum' => $anonforum1->id, 'userid' => $user->id));
     $this->assertEquals($currentsetting->maildigest, 0);
     anonforum_set_user_maildigest($anonforum1, 1, $user);
     $currentsetting = $DB->get_record('anonforum_digests', array('anonforum' => $anonforum1->id, 'userid' => $user->id));
     $this->assertEquals($currentsetting->maildigest, 1);
     anonforum_set_user_maildigest($anonforum1, 2, $user);
     $currentsetting = $DB->get_record('anonforum_digests', array('anonforum' => $anonforum1->id, 'userid' => $user->id));
     $this->assertEquals($currentsetting->maildigest, 2);
     // And the default value - this should delete the record again.
     anonforum_set_user_maildigest($anonforum1, -1, $user);
     $currentsetting = $DB->get_record('anonforum_digests', array('anonforum' => $anonforum1->id, 'userid' => $user->id));
     $this->assertFalse($currentsetting);
     // Try with an invalid value.
     $this->setExpectedException('moodle_exception');
     anonforum_set_user_maildigest($anonforum1, 42, $user);
 }
$backtoindex = optional_param('backtoindex', 0, PARAM_INT);
// We must have a valid session key.
require_sesskey();
$anonforum = $DB->get_record('anonforum', array('id' => $id));
$course = $DB->get_record('course', array('id' => $anonforum->course), '*', MUST_EXIST);
$cm = get_coursemodule_from_instance('anonforum', $anonforum->id, $course->id, false, MUST_EXIST);
$context = context_module::instance($cm->id);
require_login($course, false, $cm);
$url = new moodle_url('/mod/anonforum/maildigest.php', array('id' => $id, 'maildigest' => $maildigest));
$PAGE->set_url($url);
$PAGE->set_context($context);
$digestoptions = anonforum_get_user_digest_options();
$info = new stdClass();
$info->name = fullname($USER);
$info->anonforum = format_string($anonforum->name);
anonforum_set_user_maildigest($anonforum, $maildigest);
$info->maildigest = $maildigest;
if ($maildigest === -1) {
    // Get the default maildigest options.
    $info->maildigest = $USER->maildigest;
    $info->maildigesttitle = $digestoptions[$info->maildigest];
    $info->maildigestdescription = get_string('emaildigest_' . $info->maildigest, 'mod_anonforum', $info);
    $updatemessage = get_string('emaildigestupdated_default', 'anonforum', $info);
} else {
    $info->maildigesttitle = $digestoptions[$info->maildigest];
    $info->maildigestdescription = get_string('emaildigest_' . $info->maildigest, 'mod_anonforum', $info);
    $updatemessage = get_string('emaildigestupdated', 'anonforum', $info);
}
if ($backtoindex) {
    $returnto = "index.php?id={$course->id}";
} else {
 /**
  * Test mod_anonforum_observer methods.
  */
 public function test_observers()
 {
     global $DB, $CFG;
     require_once $CFG->dirroot . '/mod/anonforum/lib.php';
     $anonforumgen = $this->getDataGenerator()->get_plugin_generator('mod_anonforum');
     $course = $this->getDataGenerator()->create_course();
     $trackedrecord = array('course' => $course->id, 'type' => 'general', 'forcesubscribe' => ANONFORUM_INITIALSUBSCRIBE);
     $untrackedrecord = array('course' => $course->id, 'type' => 'general');
     $trackedanonforum = $this->getDataGenerator()->create_module('anonforum', $trackedrecord);
     $untrackedanonforum = $this->getDataGenerator()->create_module('anonforum', $untrackedrecord);
     // Used functions don't require these settings; adding
     // them just in case there are APIs changes in future.
     $user = $this->getDataGenerator()->create_user(array('maildigest' => 1, 'trackanonforums' => 1));
     $manplugin = enrol_get_plugin('manual');
     $manualenrol = $DB->get_record('enrol', array('courseid' => $course->id, 'enrol' => 'manual'));
     $student = $DB->get_record('role', array('shortname' => 'student'));
     // The role_assign observer does it's job adding the anonforum_subscriptions record.
     $manplugin->enrol_user($manualenrol, $user->id, $student->id);
     // They are not required, but in a real environment they are supposed to be required;
     // adding them just in case there are APIs changes in future.
     set_config('anonforum_trackingtype', 1);
     set_config('anonforum_trackreadposts', 1);
     $record = array();
     $record['course'] = $course->id;
     $record['anonforum'] = $trackedanonforum->id;
     $record['userid'] = $user->id;
     $discussion = $anonforumgen->create_discussion($record);
     $record = array();
     $record['discussion'] = $discussion->id;
     $record['userid'] = $user->id;
     $post = $anonforumgen->create_post($record);
     anonforum_tp_add_read_record($user->id, $post->id);
     anonforum_set_user_maildigest($trackedanonforum, 2, $user);
     anonforum_tp_stop_tracking($untrackedanonforum->id, $user->id);
     $this->assertEquals(1, $DB->count_records('anonforum_subscriptions'));
     $this->assertEquals(1, $DB->count_records('anonforum_digests'));
     $this->assertEquals(1, $DB->count_records('anonforum_track_prefs'));
     $this->assertEquals(1, $DB->count_records('anonforum_read'));
     // The course_module_created observer does it's job adding a subscription.
     $anonforumrecord = array('course' => $course->id, 'type' => 'general', 'forcesubscribe' => ANONFORUM_INITIALSUBSCRIBE);
     $extraanonforum = $this->getDataGenerator()->create_module('anonforum', $anonforumrecord);
     $this->assertEquals(2, $DB->count_records('anonforum_subscriptions'));
     $manplugin->unenrol_user($manualenrol, $user->id);
     $this->assertEquals(0, $DB->count_records('anonforum_digests'));
     $this->assertEquals(0, $DB->count_records('anonforum_subscriptions'));
     $this->assertEquals(0, $DB->count_records('anonforum_track_prefs'));
     $this->assertEquals(0, $DB->count_records('anonforum_read'));
 }