/**
* Renders html to print list of courses tagged with particular tag
*
* @param int $tagid id of the tag
* @param bool $exclusivemode if set to true it means that no other entities tagged with this tag
* are displayed on the page and the per-page limit may be bigger
* @param int $fromctx context id where the link was displayed, may be used by callbacks
* to display items in the same context first
* @param int $ctx context id where to search for records
* @param bool $rec search in subcontexts as well
* @param array $displayoptions
* @return string empty string if no courses are marked with this tag or rendered list of courses
*/
public function tagged_courses($tagid, $exclusivemode = true, $ctx = 0, $rec = true, $displayoptions = null)
{
global $CFG;
require_once $CFG->libdir . '/coursecatlib.php';
if (empty($displayoptions)) {
$displayoptions = array();
}
$showcategories = coursecat::count_all() > 1;
$displayoptions += array('limit' => $CFG->coursesperpage, 'offset' => 0);
$chelper = new coursecat_helper();
$searchcriteria = array('tagid' => $tagid, 'ctx' => $ctx, 'rec' => $rec);
$chelper->set_show_courses($showcategories ? self::COURSECAT_SHOW_COURSES_EXPANDED_WITH_CAT : self::COURSECAT_SHOW_COURSES_EXPANDED)->set_search_criteria($searchcriteria)->set_courses_display_options($displayoptions)->set_attributes(array('class' => 'course-search-result course-search-result-tagid'));
// (we set the same css class as in search results by tagid)
if ($totalcount = coursecat::search_courses_count($searchcriteria)) {
$courses = coursecat::search_courses($searchcriteria, $chelper->get_courses_display_options());
if ($exclusivemode) {
return $this->coursecat_courses($chelper, $courses, $totalcount);
} else {
$tagfeed = new core_tag\output\tagfeed();
$img = $this->output->pix_icon('i/course', '');
foreach ($courses as $course) {
$url = course_get_url($course);
$imgwithlink = html_writer::link($url, $img);
$coursename = html_writer::link($url, $course->get_formatted_name());
$details = '';
if ($showcategories && ($cat = coursecat::get($course->category, IGNORE_MISSING))) {
$details = get_string('category') . ': ' . html_writer::link(new moodle_url('/course/index.php', array('categoryid' => $cat->id)), $cat->get_formatted_name(), array('class' => $cat->visible ? '' : 'dimmed'));
}
$tagfeed->add($imgwithlink, $coursename, $details);
}
return $this->output->render_from_template('core_tag/tagfeed', $tagfeed->export_for_template($this->output));
}
}
return '';
}
/**
* Returns course modules tagged with a specified tag ready for output on tag/index.php page
*
* This is a callback used by the tag area core/course_modules to search for course modules
* tagged with a specific tag.
*
* @param core_tag_tag $tag
* @param bool $exclusivemode if set to true it means that no other entities tagged with this tag
* are displayed on the page and the per-page limit may be bigger
* @param int $fromcontextid context id where the link was displayed, may be used by callbacks
* to display items in the same context first
* @param int $contextid context id where to search for records
* @param bool $recursivecontext search in subcontexts as well
* @param int $page 0-based number of page being displayed
* @return \core_tag\output\tagindex
*/
function course_get_tagged_course_modules($tag, $exclusivemode = false, $fromcontextid = 0, $contextid = 0, $recursivecontext = 1, $page = 0)
{
global $OUTPUT;
$perpage = $exclusivemode ? 20 : 5;
// Build select query.
$ctxselect = context_helper::get_preload_record_columns_sql('ctx');
$query = "SELECT cm.id AS cmid, c.id AS courseid, {$ctxselect}\n FROM {course_modules} cm\n JOIN {tag_instance} tt ON cm.id = tt.itemid\n JOIN {course} c ON cm.course = c.id\n JOIN {context} ctx ON ctx.instanceid = cm.id AND ctx.contextlevel = :coursemodulecontextlevel\n WHERE tt.itemtype = :itemtype AND tt.tagid = :tagid AND tt.component = :component\n AND c.id %COURSEFILTER% AND cm.id %ITEMFILTER%";
$params = array('itemtype' => 'course_modules', 'tagid' => $tag->id, 'component' => 'core', 'coursemodulecontextlevel' => CONTEXT_MODULE);
if ($contextid) {
$context = context::instance_by_id($contextid);
$query .= $recursivecontext ? ' AND (ctx.id = :contextid OR ctx.path LIKE :path)' : ' AND ctx.id = :contextid';
$params['contextid'] = $context->id;
$params['path'] = $context->path . '/%';
}
$query .= ' ORDER BY';
if ($fromcontextid) {
// In order-clause specify that modules from inside "fromctx" context should be returned first.
$fromcontext = context::instance_by_id($fromcontextid);
$query .= ' (CASE WHEN ctx.id = :fromcontextid OR ctx.path LIKE :frompath THEN 0 ELSE 1 END),';
$params['fromcontextid'] = $fromcontext->id;
$params['frompath'] = $fromcontext->path . '/%';
}
$query .= ' c.sortorder, cm.id';
$totalpages = $page + 1;
// Use core_tag_index_builder to build and filter the list of items.
// Request one item more than we need so we know if next page exists.
$builder = new core_tag_index_builder('core', 'course_modules', $query, $params, $page * $perpage, $perpage + 1);
while ($item = $builder->has_item_that_needs_access_check()) {
context_helper::preload_from_record($item);
$courseid = $item->courseid;
if (!$builder->can_access_course($courseid)) {
$builder->set_accessible($item, false);
continue;
}
$modinfo = get_fast_modinfo($builder->get_course($courseid));
// Set accessibility of this item and all other items in the same course.
$builder->walk(function ($taggeditem) use($courseid, $modinfo, $builder) {
if ($taggeditem->courseid == $courseid) {
$cm = $modinfo->get_cm($taggeditem->cmid);
$builder->set_accessible($taggeditem, $cm->uservisible);
}
});
}
$items = $builder->get_items();
if (count($items) > $perpage) {
$totalpages = $page + 2;
// We don't need exact page count, just indicate that the next page exists.
array_pop($items);
}
// Build the display contents.
if ($items) {
$tagfeed = new core_tag\output\tagfeed();
foreach ($items as $item) {
context_helper::preload_from_record($item);
$course = $builder->get_course($item->courseid);
$modinfo = get_fast_modinfo($course);
$cm = $modinfo->get_cm($item->cmid);
$courseurl = course_get_url($item->courseid, $cm->sectionnum);
$cmname = $cm->get_formatted_name();
if (!$exclusivemode) {
$cmname = shorten_text($cmname, 100);
}
$cmname = html_writer::link($cm->url ?: $courseurl, $cmname);
$coursename = format_string($course->fullname, true, array('context' => context_course::instance($item->courseid)));
$coursename = html_writer::link($courseurl, $coursename);
$icon = html_writer::empty_tag('img', array('src' => $cm->get_icon_url()));
$tagfeed->add($icon, $cmname, $coursename);
}
$content = $OUTPUT->render_from_template('core_tag/tagfeed', $tagfeed->export_for_template($OUTPUT));
return new core_tag\output\tagindex($tag, 'core', 'course_modules', $content, $exclusivemode, $fromcontextid, $contextid, $recursivecontext, $page, $totalpages);
}
}
/**
* Returns wiki pages tagged with a specified tag.
*
* This is a callback used by the tag area mod_wiki/wiki_pages to search for wiki pages
* tagged with a specific tag.
*
* @param core_tag_tag $tag
* @param bool $exclusivemode if set to true it means that no other entities tagged with this tag
* are displayed on the page and the per-page limit may be bigger
* @param int $fromctx context id where the link was displayed, may be used by callbacks
* to display items in the same context first
* @param int $ctx context id where to search for records
* @param bool $rec search in subcontexts as well
* @param int $page 0-based number of page being displayed
* @return \core_tag\output\tagindex
*/
function mod_wiki_get_tagged_pages($tag, $exclusivemode = false, $fromctx = 0, $ctx = 0, $rec = 1, $page = 0)
{
global $OUTPUT;
$perpage = $exclusivemode ? 20 : 5;
// Build the SQL query.
$ctxselect = context_helper::get_preload_record_columns_sql('ctx');
$query = "SELECT wp.id, wp.title, ws.userid, ws.wikiid, ws.id AS subwikiid, ws.groupid, w.wikimode,\n cm.id AS cmid, c.id AS courseid, c.shortname, c.fullname, {$ctxselect}\n FROM {wiki_pages} wp\n JOIN {wiki_subwikis} ws ON wp.subwikiid = ws.id\n JOIN {wiki} w ON w.id = ws.wikiid\n JOIN {modules} m ON m.name='wiki'\n JOIN {course_modules} cm ON cm.module = m.id AND cm.instance = w.id\n JOIN {tag_instance} tt ON wp.id = tt.itemid\n JOIN {course} c ON cm.course = c.id\n JOIN {context} ctx ON ctx.instanceid = cm.id AND ctx.contextlevel = :coursemodulecontextlevel\n WHERE tt.itemtype = :itemtype AND tt.tagid = :tagid AND tt.component = :component\n AND wp.id %ITEMFILTER% AND c.id %COURSEFILTER%";
$params = array('itemtype' => 'wiki_pages', 'tagid' => $tag->id, 'component' => 'mod_wiki', 'coursemodulecontextlevel' => CONTEXT_MODULE);
if ($ctx) {
$context = $ctx ? context::instance_by_id($ctx) : context_system::instance();
$query .= $rec ? ' AND (ctx.id = :contextid OR ctx.path LIKE :path)' : ' AND ctx.id = :contextid';
$params['contextid'] = $context->id;
$params['path'] = $context->path . '/%';
}
$query .= " ORDER BY ";
if ($fromctx) {
// In order-clause specify that modules from inside "fromctx" context should be returned first.
$fromcontext = context::instance_by_id($fromctx);
$query .= ' (CASE WHEN ctx.id = :fromcontextid OR ctx.path LIKE :frompath THEN 0 ELSE 1 END),';
$params['fromcontextid'] = $fromcontext->id;
$params['frompath'] = $fromcontext->path . '/%';
}
$query .= ' c.sortorder, cm.id, wp.id';
$totalpages = $page + 1;
// Use core_tag_index_builder to build and filter the list of items.
$builder = new core_tag_index_builder('mod_wiki', 'wiki_pages', $query, $params, $page * $perpage, $perpage + 1);
while ($item = $builder->has_item_that_needs_access_check()) {
context_helper::preload_from_record($item);
$courseid = $item->courseid;
if (!$builder->can_access_course($courseid)) {
$builder->set_accessible($item, false);
continue;
}
$modinfo = get_fast_modinfo($builder->get_course($courseid));
// Set accessibility of this item and all other items in the same course.
$builder->walk(function ($taggeditem) use($courseid, $modinfo, $builder) {
if ($taggeditem->courseid == $courseid) {
$accessible = false;
if (($cm = $modinfo->get_cm($taggeditem->cmid)) && $cm->uservisible) {
$subwiki = (object) array('id' => $taggeditem->subwikiid, 'groupid' => $taggeditem->groupid, 'userid' => $taggeditem->userid, 'wikiid' => $taggeditem->wikiid);
$wiki = (object) array('id' => $taggeditem->wikiid, 'wikimode' => $taggeditem->wikimode, 'course' => $cm->course);
$accessible = wiki_user_can_view($subwiki, $wiki);
}
$builder->set_accessible($taggeditem, $accessible);
}
});
}
$items = $builder->get_items();
if (count($items) > $perpage) {
$totalpages = $page + 2;
// We don't need exact page count, just indicate that the next page exists.
array_pop($items);
}
// Build the display contents.
if ($items) {
$tagfeed = new core_tag\output\tagfeed();
foreach ($items as $item) {
context_helper::preload_from_record($item);
$modinfo = get_fast_modinfo($item->courseid);
$cm = $modinfo->get_cm($item->cmid);
$pageurl = new moodle_url('/mod/wiki/view.php', array('pageid' => $item->id));
$pagename = format_string($item->title, true, array('context' => context_module::instance($item->cmid)));
$pagename = html_writer::link($pageurl, $pagename);
$courseurl = course_get_url($item->courseid, $cm->sectionnum);
$cmname = html_writer::link($cm->url, $cm->get_formatted_name());
$coursename = format_string($item->fullname, true, array('context' => context_course::instance($item->courseid)));
$coursename = html_writer::link($courseurl, $coursename);
$icon = html_writer::link($pageurl, html_writer::empty_tag('img', array('src' => $cm->get_icon_url())));
$tagfeed->add($icon, $pagename, $cmname . '<br>' . $coursename);
}
$content = $OUTPUT->render_from_template('core_tag/tagfeed', $tagfeed->export_for_template($OUTPUT));
return new core_tag\output\tagindex($tag, 'mod_wiki', 'wiki_pages', $content, $exclusivemode, $fromctx, $ctx, $rec, $page, $totalpages);
}
}
/**
* Displays the list of tagged users
*
* @param array $userlist
* @param bool $exclusivemode if set to true it means that no other entities tagged with this tag
* are displayed on the page and the per-page limit may be bigger
* @return string
*/
public function user_list($userlist, $exclusivemode)
{
$tagfeed = new core_tag\output\tagfeed();
foreach ($userlist as $user) {
$userpicture = $this->output->user_picture($user, array('size' => $exclusivemode ? 100 : 35));
$fullname = fullname($user);
if (user_can_view_profile($user)) {
$profilelink = new moodle_url('/user/view.php', array('id' => $user->id));
$fullname = html_writer::link($profilelink, $fullname);
}
$tagfeed->add($userpicture, $fullname);
}
$items = $tagfeed->export_for_template($this->output);
if ($exclusivemode) {
$output = '<div><ul class="inline-list">';
foreach ($items['items'] as $item) {
$output .= '<li><div class="user-box">' . $item['img'] . $item['heading'] . "</div></li>\n";
}
$output .= "</ul></div>\n";
return $output;
}
return $this->output->render_from_template('core_tag/tagfeed', $items);
}
/**
* Returns posts tagged with a specified tag.
*
* @param core_tag_tag $tag
* @param bool $exclusivemode if set to true it means that no other entities tagged with this tag
* are displayed on the page and the per-page limit may be bigger
* @param int $fromctx context id where the link was displayed, may be used by callbacks
* to display items in the same context first
* @param int $ctx context id where to search for records
* @param bool $rec search in subcontexts as well
* @param int $page 0-based number of page being displayed
* @return \core_tag\output\tagindex
*/
function blog_get_tagged_posts($tag, $exclusivemode = false, $fromctx = 0, $ctx = 0, $rec = true, $page = 0)
{
global $CFG, $OUTPUT;
require_once $CFG->dirroot . '/user/lib.php';
$systemcontext = context_system::instance();
$perpage = $exclusivemode ? 20 : 5;
$context = $ctx ? context::instance_by_id($ctx) : context_system::instance();
$content = '';
if (empty($CFG->enableblogs) || !has_capability('moodle/blog:view', $systemcontext)) {
// Blogs are not enabled or are not visible to the current user.
$totalpages = 0;
} else {
if ($context->contextlevel != CONTEXT_SYSTEM && empty($CFG->useblogassociations)) {
// No blog entries can be associated to the non-system context.
$totalpages = 0;
} else {
if (!$rec && $context->contextlevel != CONTEXT_COURSE && $context->contextlevel != CONTEXT_MODULE) {
// No blog entries can be associated with category or block context.
$totalpages = 0;
} else {
require_once $CFG->dirroot . '/blog/locallib.php';
$filters = array('tag' => $tag->id);
if ($rec) {
if ($context->contextlevel != CONTEXT_SYSTEM) {
$filters['context'] = $context->id;
}
} else {
if ($context->contextlevel == CONTEXT_COURSE) {
$filters['course'] = $context->instanceid;
} else {
if ($context->contextlevel == CONTEXT_MODULE) {
$filters['module'] = $context->instanceid;
}
}
}
$bloglisting = new blog_listing($filters);
$blogs = $bloglisting->get_entries($page * $perpage, $perpage);
$totalcount = $bloglisting->count_entries();
$totalpages = ceil($totalcount / $perpage);
if (!empty($blogs)) {
$tagfeed = new core_tag\output\tagfeed();
foreach ($blogs as $blog) {
$user = fullclone($blog);
$user->id = $blog->userid;
$user->deleted = 0;
$img = $OUTPUT->user_picture($user, array('size' => 35));
$subject = format_string($blog->subject);
if ($blog->publishstate == 'draft') {
$class = 'dimmed';
} else {
$class = '';
}
$url = new moodle_url('/blog/index.php', array('entryid' => $blog->id));
$subject = html_writer::link($url, $subject, array('class' => $class));
$fullname = fullname($user);
if (user_can_view_profile($user)) {
$profilelink = new moodle_url('/user/view.php', array('id' => $blog->userid));
$fullname = html_writer::link($profilelink, $fullname);
}
$details = $fullname . ', ' . userdate($blog->created);
$tagfeed->add($img, $subject, $details);
}
$items = $tagfeed->export_for_template($OUTPUT);
$content = $OUTPUT->render_from_template('core_tag/tagfeed', $items);
$urlparams = array('tagid' => $tag->id);
if ($context->contextlevel == CONTEXT_COURSE) {
$urlparams['courseid'] = $context->instanceid;
} else {
if ($context->contextlevel == CONTEXT_MODULE) {
$urlparams['modid'] = $context->instanceid;
}
}
$allblogsurl = new moodle_url('/blog/index.php', $urlparams);
$rv = new core_tag\output\tagindex($tag, 'core', 'post', $content, $exclusivemode, $fromctx, $ctx, $rec, $page, $totalpages);
$rv->exclusiveurl = $allblogsurl;
return $rv;
}
}
}
}
$rv = new core_tag\output\tagindex($tag, 'core', 'post', $content, $exclusivemode, $fromctx, $ctx, $rec, $page, $totalpages);
$rv->exclusiveurl = null;
return $rv;
}