/**
* Returns a list of forum discussions optionally sorted and paginated.
*
* @param int $forumid the forum instance id
* @param string $sortby sort by this element (id, timemodified, timestart or timeend)
* @param string $sortdirection sort direction: ASC or DESC
* @param int $page page number
* @param int $perpage items per page
*
* @return array the forum discussion details including warnings
* @since Moodle 2.8
*/
public static function get_forum_discussions_paginated($forumid, $sortby = 'timemodified', $sortdirection = 'DESC', $page = -1, $perpage = 0)
{
global $CFG, $DB, $USER, $PAGE;
require_once $CFG->dirroot . "/mod/forum/lib.php";
$warnings = array();
$discussions = array();
$params = self::validate_parameters(self::get_forum_discussions_paginated_parameters(), array('forumid' => $forumid, 'sortby' => $sortby, 'sortdirection' => $sortdirection, 'page' => $page, 'perpage' => $perpage));
// Compact/extract functions are not recommended.
$forumid = $params['forumid'];
$sortby = $params['sortby'];
$sortdirection = $params['sortdirection'];
$page = $params['page'];
$perpage = $params['perpage'];
$sortallowedvalues = array('id', 'timemodified', 'timestart', 'timeend');
if (!in_array($sortby, $sortallowedvalues)) {
throw new invalid_parameter_exception('Invalid value for sortby parameter (value: ' . $sortby . '),' . 'allowed values are: ' . implode(',', $sortallowedvalues));
}
$sortdirection = strtoupper($sortdirection);
$directionallowedvalues = array('ASC', 'DESC');
if (!in_array($sortdirection, $directionallowedvalues)) {
throw new invalid_parameter_exception('Invalid value for sortdirection parameter (value: ' . $sortdirection . '),' . 'allowed values are: ' . implode(',', $directionallowedvalues));
}
$forum = $DB->get_record('forum', array('id' => $forumid), '*', MUST_EXIST);
$course = $DB->get_record('course', array('id' => $forum->course), '*', MUST_EXIST);
$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id, false, MUST_EXIST);
// Validate the module context. It checks everything that affects the module visibility (including groupings, etc..).
$modcontext = context_module::instance($cm->id);
self::validate_context($modcontext);
// Check they have the view forum capability.
require_capability('mod/forum:viewdiscussion', $modcontext, null, true, 'noviewdiscussionspermission', 'forum');
$sort = 'd.pinned DESC, d.' . $sortby . ' ' . $sortdirection;
$alldiscussions = forum_get_discussions($cm, $sort, true, -1, -1, true, $page, $perpage, FORUM_POSTS_ALL_USER_GROUPS);
if ($alldiscussions) {
$canviewfullname = has_capability('moodle/site:viewfullnames', $modcontext);
// Get the unreads array, this takes a forum id and returns data for all discussions.
$unreads = array();
if ($cantrack = forum_tp_can_track_forums($forum)) {
if ($forumtracked = forum_tp_is_tracked($forum)) {
$unreads = forum_get_discussions_unread($cm);
}
}
// The forum function returns the replies for all the discussions in a given forum.
$replies = forum_count_discussion_replies($forumid, $sort, -1, $page, $perpage);
foreach ($alldiscussions as $discussion) {
// This function checks for qanda forums.
// Note that the forum_get_discussions returns as id the post id, not the discussion id so we need to do this.
$discussionrec = clone $discussion;
$discussionrec->id = $discussion->discussion;
if (!forum_user_can_see_discussion($forum, $discussionrec, $modcontext)) {
$warning = array();
// Function forum_get_discussions returns forum_posts ids not forum_discussions ones.
$warning['item'] = 'post';
$warning['itemid'] = $discussion->id;
$warning['warningcode'] = '1';
$warning['message'] = 'You can\'t see this discussion';
$warnings[] = $warning;
continue;
}
$discussion->numunread = 0;
if ($cantrack && $forumtracked) {
if (isset($unreads[$discussion->discussion])) {
$discussion->numunread = (int) $unreads[$discussion->discussion];
}
}
$discussion->numreplies = 0;
if (!empty($replies[$discussion->discussion])) {
$discussion->numreplies = (int) $replies[$discussion->discussion]->replies;
}
$discussion->name = external_format_string($discussion->name, $modcontext->id);
$discussion->subject = external_format_string($discussion->subject, $modcontext->id);
// Rewrite embedded images URLs.
list($discussion->message, $discussion->messageformat) = external_format_text($discussion->message, $discussion->messageformat, $modcontext->id, 'mod_forum', 'post', $discussion->id);
// List attachments.
if (!empty($discussion->attachment)) {
$discussion->attachments = external_util::get_area_files($modcontext->id, 'mod_forum', 'attachment', $discussion->id);
}
$messageinlinefiles = external_util::get_area_files($modcontext->id, 'mod_forum', 'post', $discussion->id);
if (!empty($messageinlinefiles)) {
$discussion->messageinlinefiles = $messageinlinefiles;
}
$discussion->locked = forum_discussion_is_locked($forum, $discussion);
$discussion->canreply = forum_user_can_post($forum, $discussion, $USER, $cm, $course, $modcontext);
if (forum_is_author_hidden($discussion, $forum)) {
$discussion->userid = null;
$discussion->userfullname = null;
$discussion->userpictureurl = null;
$discussion->usermodified = null;
$discussion->usermodifiedfullname = null;
$discussion->usermodifiedpictureurl = null;
} else {
$picturefields = explode(',', user_picture::fields());
// Load user objects from the results of the query.
$user = new stdclass();
$user->id = $discussion->userid;
$user = username_load_fields_from_object($user, $discussion, null, $picturefields);
// Preserve the id, it can be modified by username_load_fields_from_object.
$user->id = $discussion->userid;
$discussion->userfullname = fullname($user, $canviewfullname);
$userpicture = new user_picture($user);
$userpicture->size = 1;
// Size f1.
$discussion->userpictureurl = $userpicture->get_url($PAGE)->out(false);
$usermodified = new stdclass();
$usermodified->id = $discussion->usermodified;
$usermodified = username_load_fields_from_object($usermodified, $discussion, 'um', $picturefields);
// Preserve the id (it can be overwritten due to the prefixed $picturefields).
$usermodified->id = $discussion->usermodified;
$discussion->usermodifiedfullname = fullname($usermodified, $canviewfullname);
$userpicture = new user_picture($usermodified);
$userpicture->size = 1;
// Size f1.
$discussion->usermodifiedpictureurl = $userpicture->get_url($PAGE)->out(false);
}
$discussions[] = $discussion;
}
}
$result = array();
$result['discussions'] = $discussions;
$result['warnings'] = $warnings;
return $result;
}
/**
* Outputs the forum post indicated by $activity.
*
* @param object $activity the activity object the forum resides in
* @param int $courseid the id of the course the forum resides in
* @param bool $detail not used, but required for compatibilty with other modules
* @param int $modnames not used, but required for compatibilty with other modules
* @param bool $viewfullnames not used, but required for compatibilty with other modules
*/
function forum_print_recent_mod_activity($activity, $courseid, $detail, $modnames, $viewfullnames)
{
global $OUTPUT;
$content = $activity->content;
if ($content->parent) {
$class = 'reply';
} else {
$class = 'discussion';
}
$tableoptions = ['border' => '0', 'cellpadding' => '3', 'cellspacing' => '0', 'class' => 'forum-recent'];
$output = html_writer::start_tag('table', $tableoptions);
$output .= html_writer::start_tag('tr');
$post = (object) ['parent' => $content->parent];
$forum = (object) ['type' => $content->forumtype];
$authorhidden = forum_is_author_hidden($post, $forum);
// Show user picture if author should not be hidden.
if (!$authorhidden) {
$pictureoptions = ['courseid' => $courseid, 'link' => $authorhidden, 'alttext' => $authorhidden];
$picture = $OUTPUT->user_picture($activity->user, $pictureoptions);
$output .= html_writer::tag('td', $picture, ['class' => 'userpicture', 'valign' => 'top']);
}
// Discussion title and author.
$output .= html_writer::start_tag('td', ['class' => $class]);
if ($content->parent) {
$class = 'title';
} else {
// Bold the title of new discussions so they stand out.
$class = 'title bold';
}
$output .= html_writer::start_div($class);
if ($detail) {
$aname = s($activity->name);
$output .= html_writer::img($OUTPUT->pix_url('icon', $activity->type), $aname, ['class' => 'icon']);
}
$discussionurl = new moodle_url('/mod/forum/discuss.php', ['d' => $content->discussion]);
$discussionurl->set_anchor('p' . $activity->content->id);
$output .= html_writer::link($discussionurl, $content->subject);
$output .= html_writer::end_div();
$timestamp = userdate($activity->timestamp);
if ($authorhidden) {
$authornamedate = $timestamp;
} else {
$fullname = fullname($activity->user, $viewfullnames);
$userurl = new moodle_url('/user/view.php');
$userurl->params(['id' => $activity->user->id, 'course' => $courseid]);
$by = new stdClass();
$by->name = html_writer::link($userurl, $fullname);
$by->date = $timestamp;
$authornamedate = get_string('bynameondate', 'forum', $by);
}
$output .= html_writer::div($authornamedate, 'user');
$output .= html_writer::end_tag('td');
$output .= html_writer::end_tag('tr');
$output .= html_writer::end_tag('table');
echo $output;
}
/**
* Test for forum_is_author_hidden.
*/
public function test_forum_is_author_hidden()
{
// First post, different forum type.
$post = (object) ['parent' => 0];
$forum = (object) ['type' => 'standard'];
$this->assertFalse(forum_is_author_hidden($post, $forum));
// Child post, different forum type.
$post->parent = 1;
$this->assertFalse(forum_is_author_hidden($post, $forum));
// First post, single simple discussion forum type.
$post->parent = 0;
$forum->type = 'single';
$this->assertTrue(forum_is_author_hidden($post, $forum));
// Child post, single simple discussion forum type.
$post->parent = 1;
$this->assertFalse(forum_is_author_hidden($post, $forum));
// Incorrect parameters: $post.
$this->expectException('coding_exception');
$this->expectExceptionMessage('$post->parent must be set.');
unset($post->parent);
forum_is_author_hidden($post, $forum);
// Incorrect parameters: $forum.
$this->expectException('coding_exception');
$this->expectExceptionMessage('$forum->type must be set.');
unset($forum->type);
forum_is_author_hidden($post, $forum);
}
