/**
* Deletes a single quora 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 $quora Forum
* @param bool $skipcompletion True to skip updating completion state if it
* would otherwise be updated, i.e. when deleting entire quora anyway.
* @return bool
*/
function quora_delete_post($post, $children, $course, $cm, $quora, $skipcompletion = false)
{
global $DB, $CFG;
require_once $CFG->libdir . '/completionlib.php';
$context = context_module::instance($cm->id);
if ($children !== 'ignore' && ($childposts = $DB->get_records('quora_posts', array('parent' => $post->id)))) {
if ($children) {
foreach ($childposts as $childpost) {
quora_delete_post($childpost, true, $course, $cm, $quora, $skipcompletion);
}
} else {
return false;
}
}
// Delete ratings.
require_once $CFG->dirroot . '/rating/lib.php';
$delopt = new stdClass();
$delopt->contextid = $context->id;
$delopt->component = 'mod_quora';
$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_quora', 'attachment', $post->id);
$fs->delete_area_files($context->id, 'mod_quora', 'post', $post->id);
// Delete cached RSS feeds.
if (!empty($CFG->enablerssfeeds)) {
require_once $CFG->dirroot . '/mod/quora/rsslib.php';
quora_rss_delete_file($quora);
}
if ($DB->delete_records("quora_posts", array("id" => $post->id))) {
quora_tp_delete_read_records(-1, $post->id);
// Just in case we are deleting the last post
quora_discussion_update_last_post($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 && ($quora->completiondiscussions || $quora->completionreplies || $quora->completionposts)) {
$completion->update_state($cm, COMPLETION_INCOMPLETE, $post->userid);
}
}
return true;
}
return false;
}
\mod_quora\subscriptions::subscribe_user_to_discussion($userid, $newdiscussion, $destinationctx);
}
} else {
\mod_quora\subscriptions::unsubscribe_user_from_discussion($userid, $newdiscussion, $destinationctx);
}
}
$params = array('context' => $destinationctx, 'objectid' => $discussion->id, 'other' => array('fromquoraid' => $quora->id, 'toquoraid' => $quorato->id));
$event = \mod_quora\event\discussion_moved::create($params);
$event->add_record_snapshot('quora_discussions', $discussion);
$event->add_record_snapshot('quora', $quora);
$event->add_record_snapshot('quora', $quorato);
$event->trigger();
// Delete the RSS files for the 2 quoras to force regeneration of the feeds
require_once $CFG->dirroot . '/mod/quora/rsslib.php';
quora_rss_delete_file($quora);
quora_rss_delete_file($quorato);
redirect($return . '&moved=-1&sesskey=' . sesskey());
}
// Trigger discussion viewed event.
quora_discussion_view($modcontext, $quora, $discussion);
unset($SESSION->fromdiscussion);
if ($mode) {
set_user_preference('quora_displaymode', $mode);
}
$displaymode = get_user_preferences('quora_displaymode', $CFG->quora_displaymode);
if ($parent) {
// If flat AND parent, then force nested display this time
if ($displaymode == FORUM_MODE_FLATOLDEST or $displaymode == FORUM_MODE_FLATNEWEST) {
$displaymode = FORUM_MODE_NESTED;
}
} else {