redirect("view.php?f={$discussion->forum}");
} else {
if (forum_delete_post($post, has_capability('mod/forum:deleteanypost', $modcontext), $course, $cm, $forum)) {
if ($forum->type == 'single') {
// Single discussion forums are an exception. We show
// the forum itself since it only has one discussion
// thread.
$discussionurl = "view.php?f={$forum->id}";
} else {
$discussionurl = "discuss.php?d={$post->discussion}";
}
$params = array('context' => $modcontext, 'objectid' => $post->id, 'other' => array('discussionid' => $discussion->id, 'forumid' => $forum->id, 'forumtype' => $forum->type));
if ($post->userid !== $USER->id) {
$params['relateduserid'] = $post->userid;
}
$event = \mod_forum\event\post_deleted::create($params);
$event->add_record_snapshot('forum_posts', $post);
$event->add_record_snapshot('forum_discussions', $discussion);
$event->trigger();
redirect(forum_go_back_to($discussionurl));
} else {
print_error('errorwhiledelete', 'forum');
}
}
}
}
} else {
// User just asked to delete something
forum_set_return();
$PAGE->navbar->add(get_string('delete', 'forum'));
$PAGE->set_title($course->shortname);
/**
* Deletes a single forum post.
*
* @global object
* @param object $post Forum post object
* @param mixed $children Whether to delete children. If false, returns false
* if there are any children (without deleting the post). If true,
* recursively deletes all children. If set to special value 'ignore', deletes
* post regardless of children (this is for use only when deleting all posts
* in a disussion).
* @param object $course Course
* @param object $cm Course-module
* @param object $forum Forum
* @param bool $skipcompletion True to skip updating completion state if it
* would otherwise be updated, i.e. when deleting entire forum anyway.
* @return bool
*/
function forum_delete_post($post, $children, $course, $cm, $forum, $skipcompletion = false)
{
global $DB, $CFG, $USER;
require_once $CFG->libdir . '/completionlib.php';
$context = context_module::instance($cm->id);
if ($children !== 'ignore' && ($childposts = $DB->get_records('forum_posts', array('parent' => $post->id)))) {
if ($children) {
foreach ($childposts as $childpost) {
forum_delete_post($childpost, true, $course, $cm, $forum, $skipcompletion);
}
} else {
return false;
}
}
// Delete ratings.
require_once $CFG->dirroot . '/rating/lib.php';
$delopt = new stdClass();
$delopt->contextid = $context->id;
$delopt->component = 'mod_forum';
$delopt->ratingarea = 'post';
$delopt->itemid = $post->id;
$rm = new rating_manager();
$rm->delete_ratings($delopt);
// Delete attachments.
$fs = get_file_storage();
$fs->delete_area_files($context->id, 'mod_forum', 'attachment', $post->id);
$fs->delete_area_files($context->id, 'mod_forum', 'post', $post->id);
// Delete cached RSS feeds.
if (!empty($CFG->enablerssfeeds)) {
require_once $CFG->dirroot . '/mod/forum/rsslib.php';
forum_rss_delete_file($forum);
}
if ($DB->delete_records("forum_posts", array("id" => $post->id))) {
forum_tp_delete_read_records(-1, $post->id);
// Just in case we are deleting the last post
forum_discussion_update_last_post($post->discussion);
// Update completion state if we are tracking completion based on number of posts
// But don't bother when deleting whole thing
if (!$skipcompletion) {
$completion = new completion_info($course);
if ($completion->is_enabled($cm) == COMPLETION_TRACKING_AUTOMATIC && ($forum->completiondiscussions || $forum->completionreplies || $forum->completionposts)) {
$completion->update_state($cm, COMPLETION_INCOMPLETE, $post->userid);
}
}
$params = array('context' => $context, 'objectid' => $post->id, 'other' => array('discussionid' => $post->discussion, 'forumid' => $forum->id, 'forumtype' => $forum->type));
if ($post->userid !== $USER->id) {
$params['relateduserid'] = $post->userid;
}
$event = \mod_forum\event\post_deleted::create($params);
$event->add_record_snapshot('forum_posts', $post);
$event->trigger();
return true;
}
return false;
}
/**
* Test post_deleted event for a single discussion forum.
*/
public function test_post_deleted_single()
{
// Setup test data.
$course = $this->getDataGenerator()->create_course();
$forum = $this->getDataGenerator()->create_module('forum', array('course' => $course->id, 'type' => 'single'));
$user = $this->getDataGenerator()->create_user();
// Add a discussion.
$record = array();
$record['course'] = $course->id;
$record['forum'] = $forum->id;
$record['userid'] = $user->id;
$discussion = $this->getDataGenerator()->get_plugin_generator('mod_forum')->create_discussion($record);
// Add a post.
$record = array();
$record['discussion'] = $discussion->id;
$record['userid'] = $user->id;
$post = $this->getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
$context = context_module::instance($forum->cmid);
$params = array('context' => $context, 'objectid' => $post->id, 'other' => array('discussionid' => $discussion->id, 'forumid' => $forum->id, 'forumtype' => $forum->type));
$event = \mod_forum\event\post_deleted::create($params);
// Trigger and capture the event.
$sink = $this->redirectEvents();
$event->trigger();
$events = $sink->get_events();
$this->assertCount(1, $events);
$event = reset($events);
// Checking that the event contains the expected values.
$this->assertInstanceOf('\\mod_forum\\event\\post_deleted', $event);
$this->assertEquals($context, $event->get_context());
$expected = array($course->id, 'forum', 'delete post', "view.php?f={$forum->id}", $post->id, $forum->cmid);
$this->assertEventLegacyLogData($expected, $event);
$url = new \moodle_url('/mod/forum/view.php', array('f' => $forum->id));
$this->assertEquals($url, $event->get_url());
$this->assertEventContextNotUsed($event);
$this->assertNotEmpty($event->get_name());
}
