/**
* Returns arrays of all cm ids and all section ids
* used in the subpage
* @param mod_subpage $subpage
* @return array activities,sections
*/
public function get_includes($subpage)
{
$cm = $subpage->get_course_module();
$cmids = array($cm->id);
$sids = array();
$modinfo = get_fast_modinfo($subpage->get_course(), -1);
$sections = $modinfo->get_sections();
$spsections = $subpage->get_sections();
foreach ($spsections as $sid => $info) {
$sids[] = $sid;
if (!empty($sections[$info->section])) {
foreach ($sections[$info->section] as $cmid) {
$cmids[] = $cmid;
$cminfo = $modinfo->get_cm($cmid);
if (strtolower($cminfo->get_module_type_name()) == 'subpage') {
// Support subpage in subpage.
$asubpage = \mod_subpage::get_from_cmid($cmid);
list($acmids, $asids) = $this->get_includes($asubpage);
$cmids = array_merge($cmids, $acmids);
$sids = array_merge($sids, $asids);
}
}
}
}
return array($cmids, $sids);
}
/**
* Return an array of modules that can be moved in this situation
*
* The Array is keyed first with sections (subpage or main course)
* and then the modules within each section by cmid.
*
* @param mod_subpage $subpage Current subpage
* @param array $allsubpages Array of other subpage objects
* @param array $coursesections Array of course sections
* @param course_modinfo $modinfo Modinfo object
* @param string $move Whether to move 'to' or 'from' the current subpage
* @return array An array of items organised by section
*/
public static function moveable_modules(mod_subpage $subpage, array $allsubpages, $coursesections, course_modinfo $modinfo, $move)
{
$modinfo = get_fast_modinfo($subpage->get_course()->id);
$allmods = $modinfo->get_cms();
$modnames = get_module_types_names();
$modnamesplural = get_module_types_names(true);
$mods = array();
if ($move === 'to') {
$parentcmids = array();
// Get the subpage cm that owns each section.
$subpagesectioncm = array();
foreach ($modinfo->get_instances_of('subpage') as $subpageid => $cm) {
// Get sectionsids array stored in the customdata.
$cmdata = $cm->customdata;
if ($cmdata) {
foreach ($cmdata->sectionids as $sectionid) {
$subpagesectioncm[$sectionid] = $cm;
}
}
}
// Loop through ancestor subpages.
$cm = $modinfo->get_cm($subpage->get_course_module()->id);
while (true) {
if (array_key_exists($cm->section, $subpagesectioncm)) {
$cm = $subpagesectioncm[$cm->section];
// In case of a subpage within itself, prevent endless loop.
if (array_key_exists($cm->id, $parentcmids)) {
break;
}
$parentcmids[$cm->id] = true;
} else {
break;
}
}
}
$subsections = array();
if (!empty($allsubpages) && $move === 'to') {
foreach ($allsubpages as $sub) {
$subsections += $sub->get_sections();
}
$sections = $coursesections;
} else {
$subsections = $subpage->get_sections();
$sections = $subsections;
}
if ($sections) {
foreach ($sections as $section) {
if (!empty($section->sequence)) {
if ($move === 'to' && array_key_exists($section->id, $subsections)) {
continue;
}
$sectionalt = isset($section->pageorder) ? $section->pageorder : $section->section;
if ($move === 'to') {
// Include the required course/format library.
global $CFG;
require_once "{$CFG->dirroot}/course/format/" . $subpage->get_course()->format . "/lib.php";
$callbackfunction = 'callback_' . $subpage->get_course()->format . '_get_section_name';
if (function_exists($callbackfunction)) {
$name = $callbackfunction($subpage->get_course(), $section);
} else {
$name = $section->name ? $section->name : get_string('section') . ' ' . $sectionalt;
}
} else {
$name = $section->name ? $section->name : get_string('section') . ' ' . $sectionalt;
}
$sectionmods = explode(',', $section->sequence);
foreach ($sectionmods as $modnumber) {
if (empty($allmods[$modnumber]) || $modnumber === $subpage->get_course_module()->id) {
continue;
}
if ($move === 'to') {
// Prevent moving a parent subpage to its child.
if (!empty($parentcmids[$modnumber])) {
continue;
}
}
$instancename = format_string($modinfo->cms[$modnumber]->name, true, $subpage->get_course()->id);
$icon = $modinfo->get_cm($modnumber)->get_icon_url();
$mod = $allmods[$modnumber];
$mods[$section->section]['section'] = $name;
$mods[$section->section]['pageorder'] = $sectionalt;
$mods[$section->section]['mods'][$modnumber] = "<span><img src='{$icon}' /> " . $instancename . "</span>";
}
}
}
}
return $mods;
}