private function setup_links()
{
if (empty($this->views) || empty($this->artefacts)) {
return;
}
$viewlist = join(',', array_keys($this->views));
$artefactlist = join(',', array_keys($this->artefacts));
// Views in collections
if ($this->collections) {
$collectionlist = join(',', array_keys($this->collections));
$records = get_records_select_array('collection_view', "view IN ({$viewlist}) AND collection IN ({$collectionlist})");
if ($records) {
foreach ($records as &$r) {
$this->links->collectionview[$r->collection][$r->view] = 1;
$this->links->viewcollection[$r->view][$r->collection] = 1;
}
}
}
// Artefacts directly in views
$records = get_records_select_array('view_artefact', "view IN ({$viewlist}) OR artefact IN ({$artefactlist})");
if ($records) {
foreach ($records as &$r) {
$this->links->viewcontents[$r->view][$r->artefact] = 1;
$this->links->artefactinview[$r->artefact][$r->view] = 1;
}
}
// Artefact parent-child relationships
$records = get_records_select_array('artefact', "parent IN ({$artefactlist}) AND id IN ({$artefactlist})", array(), '', 'id,parent');
if ($records) {
foreach ($records as &$r) {
$this->links->children[$r->parent][$r->id] = 1;
$this->links->parent[$r->id] = $r->parent;
}
}
// Artefact-attachment relationships
$records = get_records_select_array('artefact_attachment', "artefact IN ({$artefactlist}) AND attachment IN ({$artefactlist})");
if ($records) {
foreach ($records as &$r) {
$this->links->attachments[$r->artefact][$r->attachment] = 1;
}
}
// Other leap2a relationships
$this->links->viewartefact = array();
$this->links->artefactview = array();
$this->links->artefactartefact = array();
foreach (require_artefact_plugins() as $plugin) {
safe_require('export', 'leap/' . $plugin->name, 'lib.php', 'require_once', true);
}
foreach (plugins_installed('artefact') as $plugin) {
$classname = 'LeapExportElement' . ucfirst($plugin->name);
if (is_callable($classname . '::setup_links')) {
// You must explicitly pass variables by reference when calling
// call_user_func, or else they get copied automatically.
// Using a dummy variable here to avoid the "Call time pass by reference
// is deprecated" warning that php displays on the screen.
$dummyref =& $this->links;
call_user_func(array($classname, 'setup_links'), $dummyref, array_keys($this->views), array_keys($this->artefacts));
}
}
}
function artefact_get_types_from_filter($filter)
{
static $contenttype_artefacttype = null;
if (is_null($contenttype_artefacttype)) {
$contenttype_artefacttype = array();
foreach (require_artefact_plugins() as $plugin) {
$classname = generate_class_name('artefact', $plugin->name);
if (!is_callable($classname . '::get_artefact_type_content_types')) {
continue;
}
$artefacttypetypes = call_static_method($classname, 'get_artefact_type_content_types');
foreach ($artefacttypetypes as $artefacttype => $contenttypes) {
if (!empty($contenttypes)) {
foreach ($contenttypes as $ct) {
$contenttype_artefacttype[$ct][] = $artefacttype;
}
}
}
}
}
if (empty($contenttype_artefacttype[$filter])) {
return null;
}
return $contenttype_artefacttype[$filter];
}
