if ($post->totalscore) {
notice(get_string('couldnotdeleteratings', 'rating'), forum_go_back_to("discuss.php?d={$post->discussion}"));
} else {
if ($replycount && !has_capability('mod/forum:deleteanypost', $modcontext)) {
print_error("couldnotdeletereplies", "forum", forum_go_back_to("discuss.php?d={$post->discussion}"));
} else {
if (!$post->parent) {
// post is a discussion topic as well, so delete discussion
if ($forum->type == 'single') {
notice("Sorry, but you are not allowed to delete that discussion!", forum_go_back_to("discuss.php?d={$post->discussion}"));
}
forum_delete_discussion($discussion, false, $course, $cm, $forum);
add_to_log($discussion->course, "forum", "delete discussion", "view.php?id={$cm->id}", "{$forum->id}", $cm->id);
redirect("view.php?f={$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}";
}
add_to_log($discussion->course, "forum", "delete post", $discussionurl, "{$post->id}", $cm->id);
redirect(forum_go_back_to($discussionurl));
} else {
print_error('errorwhiledelete', 'forum');
}
}
}
/**
* 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, $CFG;
require_once($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', $post->id);
if ($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, $post->userid);
}
}
return true;
}
return false;
}
if ($post->totalscore) {
notice(get_string("couldnotdeleteratings", "forum"), forum_go_back_to("discuss.php?d={$post->discussion}"));
} else {
if ($replycount && !has_capability('mod/forum:deleteanypost', $modcontext)) {
error(get_string("couldnotdeletereplies", "forum"), forum_go_back_to("discuss.php?d={$post->discussion}"));
} else {
if (!$post->parent) {
// post is a discussion topic as well, so delete discussion
if ($forum->type == 'single') {
notice("Sorry, but you are not allowed to delete that discussion!", forum_go_back_to("discuss.php?d={$post->discussion}"));
}
forum_delete_discussion($discussion);
add_to_log($discussion->course, "forum", "delete discussion", "view.php?id={$cm->id}", "{$forum->id}", $cm->id);
redirect("view.php?f={$discussion->forum}");
} else {
if (forum_delete_post($post, has_capability('mod/forum:deleteanypost', $modcontext))) {
if ($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}";
}
add_to_log($discussion->course, "forum", "delete post", $discussionurl, "{$post->id}", $cm->id);
redirect(forum_go_back_to($discussionurl));
} else {
error("An error occurred while deleting record {$post->id}");
}
}
}
/**
* 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);
$event->trigger();
return true;
}
return false;
}
/**
*
*/
function forum_delete_post($post, $children = false)
{
if ($childposts = get_records('forum_posts', 'parent', $post->id)) {
if ($children) {
foreach ($childposts as $childpost) {
forum_delete_post($childpost, true);
}
} else {
return false;
}
}
if (delete_records("forum_posts", "id", $post->id)) {
delete_records("forum_ratings", "post", $post->id);
// Just in case
forum_tp_delete_read_records(-1, $post->id);
if ($post->attachment) {
$discussion = get_record("forum_discussions", "id", $post->discussion);
$post->course = $discussion->course;
$post->forum = $discussion->forum;
forum_delete_old_attachments($post);
}
// Just in case we are deleting the last post
forum_discussion_update_last_post($post->discussion);
return true;
}
return false;
}
/**
* Test post_deleted event.
*/
public function test_post_deleted()
{
global $DB;
// Setup test data.
$course = $this->getDataGenerator()->create_course();
$forum = $this->getDataGenerator()->create_module('forum', array('course' => $course->id));
$user = $this->getDataGenerator()->create_user();
$cm = get_coursemodule_from_instance('forum', $forum->id, $forum->course);
// 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);
// When creating a discussion we also create a post, so get the post.
$discussionpost = $DB->get_records('forum_posts');
// Will only be one here.
$discussionpost = reset($discussionpost);
// Add a few posts.
$record = array();
$record['discussion'] = $discussion->id;
$record['userid'] = $user->id;
$posts = array();
$posts[$discussionpost->id] = $discussionpost;
for ($i = 0; $i < 3; $i++) {
$post = $this->getDataGenerator()->get_plugin_generator('mod_forum')->create_post($record);
$posts[$post->id] = $post;
}
// Delete the last post and capture the event.
$lastpost = end($posts);
$sink = $this->redirectEvents();
forum_delete_post($lastpost, true, $course, $cm, $forum);
$events = $sink->get_events();
$this->assertCount(1, $events);
$event = reset($events);
// Check that the events contain the expected values.
$this->assertInstanceOf('\\mod_forum\\event\\post_deleted', $event);
$this->assertEquals(context_module::instance($forum->cmid), $event->get_context());
$expected = array($course->id, 'forum', 'delete post', "discuss.php?d={$discussion->id}", $lastpost->id, $forum->cmid);
$this->assertEventLegacyLogData($expected, $event);
$url = new \moodle_url('/mod/forum/discuss.php', array('d' => $discussion->id));
$this->assertEquals($url, $event->get_url());
$this->assertEventContextNotUsed($event);
$this->assertNotEmpty($event->get_name());
// Delete the whole discussion and capture the events.
$sink = $this->redirectEvents();
forum_delete_discussion($discussion, true, $course, $cm, $forum);
$events = $sink->get_events();
// We will have 3 events. One for the discussion (creating a discussion creates a post), and two for the posts.
$this->assertCount(3, $events);
// Loop through the events and check they are valid.
foreach ($events as $event) {
$post = $posts[$event->objectid];
// Check that the event contains the expected values.
$this->assertInstanceOf('\\mod_forum\\event\\post_deleted', $event);
$this->assertEquals(context_module::instance($forum->cmid), $event->get_context());
$expected = array($course->id, 'forum', 'delete post', "discuss.php?d={$discussion->id}", $post->id, $forum->cmid);
$this->assertEventLegacyLogData($expected, $event);
$url = new \moodle_url('/mod/forum/discuss.php', array('d' => $discussion->id));
$this->assertEquals($url, $event->get_url());
$this->assertEventContextNotUsed($event);
$this->assertNotEmpty($event->get_name());
}
}
} elseif ('do_add_topic' == $action) {
forum_do_add_topic($sqlm);
} elseif ('do_edit_close' == $action) {
forum_do_edit_close($sqlm);
} elseif ('do_edit_announce' == $action) {
forum_do_edit_announce($sqlm);
} elseif ('do_edit_stick' == $action) {
forum_do_edit_stick($sqlm);
} elseif ('move_topic' == $action) {
forum_move_topic($sqlm);
} elseif ('do_move_topic' == $action) {
forum_do_move_topic($sqlm);
} elseif ('do_add_post' == $action) {
forum_do_add_post($sqlm);
} elseif ('delete_post' == $action) {
forum_delete_post($sqlm);
} elseif ('do_delete_post' == $action) {
forum_do_delete_post($sqlm);
} elseif ('edit_post' == $action) {
forum_edit_post($sqlm);
} elseif ('do_edit_post' == $action) {
forum_do_edit_post($sqlm);
} else {
forum_index($sqlr, $sqlm);
}
// close whats not needed anymore
unset($action);
unset($action_permission);
unset($forum_lang);
// page footer
require_once 'footer.php';
forum_view_topic();
break;
case "add_topic":
forum_add_topic();
break;
case "do_add_topic":
forum_do_add_topic();
break;
case "edit_post":
forum_edit_post();
break;
case "do_edit_post":
forum_do_edit_post();
break;
case "delete_post":
forum_delete_post();
break;
case "do_delete_post":
forum_do_delete_post();
break;
case "do_add_post":
forum_do_add_post();
break;
case "edit_stick":
forum_do_edit_stick();
break;
case "edit_announce":
forum_do_edit_announce();
break;
case "edit_close":
forum_do_edit_close();
/**
* Deletes a single forum post.
* @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 $skipcompletion True to skip updating completion state if it
* would otherwise be updated, i.e. when deleting entire forum anyway.
*/
function forum_delete_post($post, $children, $course, $cm, $forum, $skipcompletion = false)
{
global $DB;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
if ($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
$DB->delete_records("forum_ratings", array("post" => $post->id));
//delete attachments
$fs = get_file_storage();
$fs->delete_area_files($context->id, 'forum_attachment', $post->id);
if ($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);
}
}
return true;
}
return false;
}
