/**
* @global object
* @global object
* @uses DEBUG_DEVELOPER
* @param object $anonforum
* @param object $discussion
* @param object $context
* @param object $user
* @return bool
*/
function anonforum_user_can_see_discussion($anonforum, $discussion, $context, $user = NULL)
{
global $USER, $DB;
if (empty($user) || empty($user->id)) {
$user = $USER;
}
// retrieve objects (yuk)
if (is_numeric($anonforum)) {
debugging('missing full anonforum', DEBUG_DEVELOPER);
if (!($anonforum = $DB->get_record('anonforum', array('id' => $anonforum)))) {
return false;
}
}
if (is_numeric($discussion)) {
debugging('missing full discussion', DEBUG_DEVELOPER);
if (!($discussion = $DB->get_record('anonforum_discussions', array('id' => $discussion)))) {
return false;
}
}
if (!($cm = get_coursemodule_from_instance('anonforum', $anonforum->id, $anonforum->course))) {
print_error('invalidcoursemodule');
}
if (!has_capability('mod/anonforum:viewdiscussion', $context)) {
return false;
}
if (!anonforum_user_can_see_timed_discussion($discussion, $user, $context)) {
return false;
}
if (!anonforum_user_can_see_group_discussion($discussion, $cm, $context)) {
return false;
}
if ($anonforum->type == 'qanda' && !anonforum_user_has_posted($anonforum->id, $discussion->id, $user->id) && !has_capability('mod/anonforum:viewqandawithoutposting', $context)) {
return false;
}
return true;
}
/**
* Returns a list of anonforum discussions as well as a summary of the discussion
* in a provided list of anonforums.
*
* @param array $anonforumids the anonforum ids
* @return array the anonforum discussion details
* @since Moodle 2.5
*/
public static function get_anonforum_discussions($anonforumids)
{
global $CFG, $DB, $USER;
require_once $CFG->dirroot . "/mod/anonforum/lib.php";
// Validate the parameter.
$params = self::validate_parameters(self::get_anonforum_discussions_parameters(), array('anonforumids' => $anonforumids));
$anonforumids = $params['anonforumids'];
// Array to store the anonymous forum discussions to return.
$arrdiscussions = array();
// Keep track of the course ids we have performed a require_course_login check on to avoid repeating.
$arrcourseschecked = array();
// Store the modinfo for the anonymous forums in an individual courses.
$arrcoursesanonforuminfo = array();
// Keep track of the users we have looked up in the DB.
$arrusers = array();
// Loop through them.
foreach ($anonforumids as $id) {
// Get the anonymous forum object.
$anonforum = $DB->get_record('anonforum', array('id' => $id), '*', MUST_EXIST);
// Check that that user can view this course if check not performed yet.
if (!in_array($anonforum->course, $arrcourseschecked)) {
// Check the user can function in this context.
self::validate_context(context_course::instance($anonforum->course));
// Add to the array.
$arrcourseschecked[] = $anonforum->course;
}
// Get the modinfo for the course if we haven't already.
if (!isset($arrcoursesanonforuminfo[$anonforum->course])) {
$modinfo = get_fast_modinfo($anonforum->course);
$arrcoursesanonforuminfo[$anonforum->course] = $modinfo->get_instances_of('anonforum');
}
// Check if this anonymous forum does not exist in the modinfo array, should always be false unless DB is borked.
if (empty($arrcoursesanonforuminfo[$anonforum->course][$anonforum->id])) {
throw new moodle_exception('invalidmodule', 'error');
}
// We now have the course module.
$cm = $arrcoursesanonforuminfo[$anonforum->course][$anonforum->id];
// If the anonymous forum is not visible throw an exception.
if (!$cm->uservisible) {
throw new moodle_exception('nopermissiontoshow', 'error');
}
// Get the module context.
$modcontext = context_module::instance($cm->id);
// Check they have the view anonymous forum capability.
require_capability('mod/anonforum:viewdiscussion', $modcontext);
// Check if they can view full names.
$canviewfullname = has_capability('moodle/site:viewfullnames', $modcontext);
// Get the unreads array, this takes a anonymous forum id and returns data for all discussions.
$unreads = array();
if ($cantrack = anonforum_tp_can_track_anonforums($anonforum)) {
if ($anonforumtracked = anonforum_tp_is_tracked($anonforum)) {
$unreads = anonforum_get_discussions_unread($cm);
}
}
// The anonforum function returns the replies for all the discussions in a given anonymous forum.
$replies = anonforum_count_discussion_replies($id);
// Get the discussions for this anonymous forum.
if ($discussions = $DB->get_records('anonforum_discussions', array('anonforum' => $id))) {
foreach ($discussions as $discussion) {
// If the anonymous forum is of type qanda and the user has not posted in the discussion
// we need to ensure that they have the required capability.
if ($anonforum->type == 'qanda' && !anonforum_user_has_posted($discussion->anonforum, $discussion->id, $USER->id)) {
require_capability('mod/anonforum:viewqandawithoutposting', $modcontext);
}
$usernamefields = user_picture::fields();
// If we don't have the users details then perform DB call.
if (empty($arrusers[$discussion->userid])) {
$arrusers[$discussion->userid] = $DB->get_record('user', array('id' => $discussion->userid), $usernamefields, MUST_EXIST);
}
// Get the subject.
$subject = $DB->get_field('anonforum_posts', 'subject', array('id' => $discussion->firstpost), MUST_EXIST);
// Create object to return.
$return = new stdClass();
$return->id = (int) $discussion->id;
$return->course = $discussion->course;
$return->anonforum = $discussion->anonforum;
$return->name = $discussion->name;
$return->userid = $discussion->userid;
$return->groupid = $discussion->groupid;
$return->assessed = $discussion->assessed;
$return->timemodified = (int) $discussion->timemodified;
$return->usermodified = $discussion->usermodified;
$return->timestart = $discussion->timestart;
$return->timeend = $discussion->timeend;
$return->firstpost = (int) $discussion->firstpost;
$return->firstuserfullname = fullname($arrusers[$discussion->userid], $canviewfullname);
$return->firstuserimagealt = $arrusers[$discussion->userid]->imagealt;
$return->firstuserpicture = $arrusers[$discussion->userid]->picture;
$return->firstuseremail = $arrusers[$discussion->userid]->email;
$return->subject = $subject;
$return->numunread = '';
if ($cantrack && $anonforumtracked) {
if (isset($unreads[$discussion->id])) {
$return->numunread = (int) $unreads[$discussion->id];
}
}
// Check if there are any replies to this discussion.
if (!empty($replies[$discussion->id])) {
$return->numreplies = (int) $replies[$discussion->id]->replies;
$return->lastpost = (int) $replies[$discussion->id]->lastpostid;
} else {
// No replies, so the last post will be the first post.
$return->numreplies = 0;
$return->lastpost = (int) $discussion->firstpost;
}
// Get the last post as well as the user who made it.
$lastpost = $DB->get_record('anonforum_posts', array('id' => $return->lastpost), '*', MUST_EXIST);
if (empty($arrusers[$lastpost->userid])) {
$arrusers[$lastpost->userid] = $DB->get_record('user', array('id' => $lastpost->userid), $usernamefields, MUST_EXIST);
}
$return->lastuserid = $lastpost->userid;
$return->lastuserfullname = fullname($arrusers[$lastpost->userid], $canviewfullname);
$return->lastuserimagealt = $arrusers[$lastpost->userid]->imagealt;
$return->lastuserpicture = $arrusers[$lastpost->userid]->picture;
$return->lastuseremail = $arrusers[$lastpost->userid]->email;
// Add the discussion statistics to the array to return.
$arrdiscussions[$return->id] = (array) $return;
}
}
}
return $arrdiscussions;
}
if ($anonforumidcompare and $anonforumtypecheck) {
$url = "/mod/anonforum/discuss.php?d={$discussion->id}&move={$anonforumcm->instance}&sesskey=" . sesskey();
$anonforummenu[$section][$sectionname][$url] = format_string($anonforumcm->name);
}
}
if (!empty($anonforummenu)) {
echo '<div class="movediscussionoption">';
$select = new url_select($anonforummenu, '', array('' => get_string("movethisdiscussionto", "anonforum")), 'anonforummenu', get_string('move'));
echo $OUTPUT->render($select);
echo "</div>";
}
}
echo "</div>";
}
echo '<div class="clearfloat"> </div>';
echo "</div>";
if (!empty($anonforum->blockafter) && !empty($anonforum->blockperiod)) {
$a = new stdClass();
$a->blockafter = $anonforum->blockafter;
$a->blockperiod = get_string('secondstotime' . $anonforum->blockperiod);
echo $OUTPUT->notification(get_string('thisanonforumisthrottled', 'anonforum', $a));
}
if ($anonforum->type == 'qanda' && !has_capability('mod/anonforum:viewqandawithoutposting', $modcontext) && !anonforum_user_has_posted($anonforum->id, $discussion->id, $USER->id)) {
echo $OUTPUT->notification(get_string('qandanotify', 'anonforum'));
}
if ($move == -1 and confirm_sesskey()) {
echo $OUTPUT->notification(get_string('discussionmoved', 'anonforum', format_string($anonforum->name, true)));
}
$canrate = has_capability('mod/anonforum:rate', $modcontext);
anonforum_print_discussion($course, $cm, $anonforum, $discussion, $post, $displaymode, $canreply, $canrate);
echo $OUTPUT->footer();
