/**
* Get the id of the plan entry which ultimately contains this entry
*/
public static function get_ancestor_entryid(SimpleXMLElement $entry, PluginImportLeap $importer)
{
$entryid = (string) $entry->id;
if (!isset(self::$ancestors[$entryid])) {
self::$ancestors[$entryid] = null;
$child = $entry;
while ($child) {
$childid = (string) $child->id;
if (!isset(self::$parents[$childid])) {
self::$parents[$childid] = null;
foreach ($child->link as $link) {
$href = (string) $link['href'];
if ($href != $entryid && $importer->curie_equals($link['rel'], PluginImportLeap::NS_LEAP, 'is_part_of') && $importer->entry_has_strategy($href, self::STRATEGY_IMPORT_AS_PLAN, 'plans')) {
self::$parents[$childid] = $href;
break;
}
}
}
if (!self::$parents[$childid]) {
break;
}
if ($child = $importer->get_entry_by_id(self::$parents[$childid])) {
self::$ancestors[$entryid] = self::$parents[$childid];
}
}
}
return self::$ancestors[$entryid];
}
/**
* Get the id of the entry reflected on by a comment entry
*/
public static function get_referent_entryid(SimpleXMLElement $entry, PluginImportLeap $importer)
{
foreach ($entry->link as $link) {
if ($importer->curie_equals($link['rel'], $importer->get_leap2a_namespace(), 'reflects_on') && isset($link['href'])) {
return (string) $link['href'];
}
}
// Shouldn't happen -- this was checked when offering the strategy
throw new ImportException($importer, 'TODO: get_string: cannot find an entry for a comment to comment on');
}
/**
* Returns a list of entry IDs that are children of this folder
*
* If necessary, this method can act recursively to find children at all
* levels under this folder
*
* TODO: protection against circular references
*
* @param SimpleXMLElement $entry The folder to get children for
* @param PluginImportLeap $importer The importer
* @param boolean $recurse Whether to return children at all levels below this folder
* @return array A list of the entry IDs of children in this folder
*/
private static function get_children_of_folder(SimpleXMLElement $entry, PluginImportLeap $importer, $recurse = false)
{
$children = array();
// Get entries that this folder feels are a part of it
foreach ($entry->link as $link) {
if ($importer->curie_equals($link['rel'], $importer->get_leap2a_namespace(), 'has_part') && isset($link['href'])) {
$child = $importer->get_entry_by_id((string) $link['href']);
if ($child) {
if (self::is_file($child, $importer) || self::is_folder($child, $importer)) {
$children[] = (string) $link['href'];
} else {
$importer->trace("NOTICE: Child {$child->id} of folder {$entry->id} won't be imported by the file plugin because it is not a file or folder");
}
} else {
$importer->trace("WARNING: folder {$entry->id} claims to have child {$link['href']} which does not exist");
}
}
}
if ($recurse) {
foreach ($children as $childid) {
$child = $importer->get_entry_by_id($childid);
if (self::is_folder($child, $importer)) {
$children = array_merge($children, self::get_children_of_folder($child, $importer, true));
}
}
}
return $children;
}
/**
* Given an entry, see if it's attached to one of the special selections
* representing a Mahara resume group. If so, return the display order it
* should have in that group.
*
* We look for the special Mahara selections only, because entries could be
* in more than one selection, with different display orders in each.
*
* @param SimpleXMLElement $entry The entry to check
* @param PluginImportLeap $importer The importer
* @param string $selectiontype The type of selection we're checking to
* see if the entry is part of - one of the
* special Mahara resume selections
* @return int The display order of the element in the selection, should it
* be in one - else null
*/
private static function get_display_order_for_entry(SimpleXMLElement $entry, PluginImportLeap $importer, $selectiontype)
{
static $cache = array();
$found = false;
foreach ($entry->link as $link) {
if ($importer->curie_equals($link['rel'], $importer->get_leap2a_namespace(), 'is_part_of') && isset($link['href'])) {
$href = (string) $link['href'];
if (isset($cache[$href])) {
$found = true;
} else {
if ($potentialselection = $importer->get_entry_by_id($href)) {
if (PluginImportLeap::is_rdf_type($potentialselection, $importer, 'selection')) {
if (PluginImportLeap::is_correct_category_scheme($potentialselection, $importer, 'selection_type', 'Grouping')) {
if (count($potentialselection->xpath('mahara:artefactplugin[@mahara:type="' . $selectiontype . '"]')) == 1) {
$cache[$href] = true;
$found = true;
}
}
}
}
}
if ($found) {
$leapattributes = $importer->get_attributes($link, $importer->get_leap2a_namespace());
$displayorder = isset($leapattributes['display_order']) && intval($leapattributes['display_order']) > 0 ? $leapattributes['display_order'] : '';
return $displayorder;
}
}
}
}
/**
* Add file attachment information to import entry request for a blogpost
*
* @param SimpleXMLElement $entry The entry to create the blogpost from
* @param PluginImportLeap $importer The importer
* @param int $blogentryid The ID of the import entry of the blog in which to put the post
*/
private static function add_files_to_import_entry_request_blogpost(SimpleXMLElement $entry, PluginImportLeap $importer, $blogentryid)
{
$files = array();
if (isset($entry->link)) {
foreach ($entry->link as $link) {
if ($importer->curie_equals($link['rel'], '', 'related') && isset($link['href'])) {
if ($has_attachments = get_records_select_array('import_entry_requests', 'importid = ? AND entryid = ?', array($importer->get('importertransport')->get('importid'), (string) $link['href']))) {
foreach ($has_attachments as $has_attachment) {
$attachment = unserialize($has_attachment->entrycontent);
$files[] = array('title' => $attachment['title'], 'description' => $attachment['description']);
}
}
}
}
}
return $files;
}
