case FRONTPAGECATEGORYCOMBO:
echo html_writer::tag('a', get_string('skipa', 'access', textlib::strtolower(get_string('courses'))), array('href'=>'#skipcourses', 'class'=>'skip-block'));
echo $OUTPUT->heading(get_string('courses'), 2, 'headingblock header');
$renderer = $PAGE->get_renderer('core','course');
// if there are too many courses, budiling course category tree could be slow,
// users should go to course index page to see the whole list.
$coursecount = $DB->count_records('course');
if (empty($CFG->numcoursesincombo)) {
// if $CFG->numcoursesincombo hasn't been set, use default value 500
$CFG->numcoursesincombo = 500;
}
if ($coursecount > $CFG->numcoursesincombo) {
$link = new moodle_url('/course/');
echo $OUTPUT->notification(get_string('maxnumcoursesincombo', 'moodle', array('link'=>$link->out(), 'maxnumofcourses'=>$CFG->numcoursesincombo, 'numberofcourses'=>$coursecount)));
} else {
echo $renderer->course_category_tree(get_course_category_tree());
}
print_course_search('', false, 'short');
echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcourses'));
break;
case FRONTPAGETOPICONLY: // Do nothing!! :-)
break;
}
echo '<br />';
}
echo $OUTPUT->footer();
/**
* Gets an array whose keys are category ids and whose values are arrays of courses in the corresponding category.
*
* @deprecated since 2.5
*
* This function is not used any more in moodle core and course renderer does not have render function for it.
* Combo list on the front page is displayed as:
* $renderer = $PAGE->get_renderer('core', 'course');
* echo $renderer->frontpage_combo_list()
*
* The new class {@link coursecat} stores the information about course category tree
* To get children categories use:
* coursecat::get($id)->get_children()
* To get list of courses use:
* coursecat::get($id)->get_courses()
*
* See http://docs.moodle.org/dev/Courses_lists_upgrade_to_2.5
*
* @param int $categoryid
* @return array
*/
function get_category_courses_array($categoryid = 0)
{
debugging('Function get_category_courses_array() is deprecated, please use methods of coursecat class', DEBUG_DEVELOPER);
$tree = get_course_category_tree($categoryid);
$flattened = array();
foreach ($tree as $category) {
get_category_courses_array_recursively($flattened, $category);
}
return $flattened;
}
/**
* This function generates a structured array of courses and categories.
*
* The depth of categories is limited by $CFG->maxcategorydepth however there
* is no limit on the number of courses!
*
* Suitable for use with the course renderers course_category_tree method:
* $renderer = $PAGE->get_renderer('core','course');
* echo $renderer->course_category_tree(get_course_category_tree());
*
* @global moodle_database $DB
* @param int $id
* @param int $depth
*/
function get_course_category_tree($id = 0, $depth = 0)
{
global $DB, $CFG;
$viewhiddencats = has_capability('moodle/category:viewhiddencategories', get_context_instance(CONTEXT_SYSTEM));
$categories = get_child_categories($id);
$categoryids = array();
foreach ($categories as $key => &$category) {
if (!$category->visible && !$viewhiddencats) {
unset($categories[$key]);
continue;
}
$categoryids[$category->id] = $category;
if (empty($CFG->maxcategorydepth) || $depth <= $CFG->maxcategorydepth) {
list($category->categories, $subcategories) = get_course_category_tree($category->id, $depth + 1);
foreach ($subcategories as $subid => $subcat) {
$categoryids[$subid] = $subcat;
}
$category->courses = array();
}
}
if ($depth > 0) {
// This is a recursive call so return the required array
return array($categories, $categoryids);
}
// The depth is 0 this function has just been called so we can finish it off
list($ccselect, $ccjoin) = context_instance_preload_sql('c.id', CONTEXT_COURSE, 'ctx');
list($catsql, $catparams) = $DB->get_in_or_equal(array_keys($categoryids));
$sql = "SELECT\n c.id,c.sortorder,c.visible,c.fullname,c.shortname,c.summary,c.category\n {$ccselect}\n FROM {course} c\n {$ccjoin}\n WHERE c.category {$catsql} ORDER BY c.sortorder ASC";
if ($courses = $DB->get_records_sql($sql, $catparams)) {
// loop throught them
foreach ($courses as $course) {
if ($course->id == SITEID) {
continue;
}
context_instance_preload($course);
if (!empty($course->visible) || has_capability('moodle/course:viewhiddencourses', get_context_instance(CONTEXT_COURSE, $course->id))) {
$categoryids[$course->category]->courses[$course->id] = $course;
}
}
}
return $categories;
}
/**
* Gets an array whose keys are category ids and whose values are arrays of courses in the corresponding category.
*
* @param int $categoryid
* @return array
*/
function get_category_courses_array($categoryid = 0)
{
$tree = get_course_category_tree($categoryid);
$flattened = array();
foreach ($tree as $category) {
get_category_courses_array_recursively($flattened, $category);
}
return $flattened;
}
