}
if (!($twf = $DB->get_record("twf", array("id" => $discussion->twf)))) {
print_error('invalidtwfid', 'twf');
}
if (!($cm = get_coursemodule_from_instance("twf", $twf->id, $twf->course))) {
print_error('invalidcoursemodule');
}
if (!($course = $DB->get_record('course', array('id' => $twf->course)))) {
print_error('invalidcourseid');
}
require_login($course, false, $cm);
$modcontext = context_module::instance($cm->id);
if (!($post->userid == $USER->id && has_capability('mod/twf:deleteownpost', $modcontext) || has_capability('mod/twf:deleteanypost', $modcontext))) {
print_error('cannotdeletepost', 'twf');
}
$replycount = twf_count_replies($post);
if (!empty($confirm) && confirm_sesskey()) {
// User has confirmed the delete
//check user capability to delete post.
$timepassed = time() - $post->created;
if ($timepassed > $CFG->maxeditingtime && !has_capability('mod/twf:deleteanypost', $modcontext)) {
print_error("cannotdeletepost", "twf", twf_go_back_to("discuss.php?d={$post->discussion}"));
}
if ($post->totalscore) {
notice(get_string('couldnotdeleteratings', 'rating'), twf_go_back_to("discuss.php?d={$post->discussion}"));
} else {
if ($replycount && !has_capability('mod/twf:deleteanypost', $modcontext)) {
print_error("couldnotdeletereplies", "twf", twf_go_back_to("discuss.php?d={$post->discussion}"));
} else {
if (!$post->parent) {
// post is a discussion topic as well, so delete discussion
/**
* @global object
* @param object $post
* @param bool $children
* @return int
*/
function twf_count_replies($post, $children = true)
{
global $DB;
$count = 0;
if ($children) {
if ($childposts = $DB->get_records('twf_posts', array('parent' => $post->id))) {
foreach ($childposts as $childpost) {
$count++;
// For this child
$count += twf_count_replies($childpost, true);
}
}
} else {
$count += $DB->count_records('twf_posts', array('parent' => $post->id));
}
return $count;
}
