/**
* 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 PluginImport $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, PluginImport $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($link['rel'], PluginImportLeap::NS_LEAP, 'has_part') && isset($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;
}
/**
* Attaches files to blog posts
*
* We look at the leap relationships to add attachments. Currently this
* looks explicitly for the has_attachment relationship.
*
* If importing an entry resulted in importing a new file (caused by the
* entry having out-of-line content), we attach that file to the entry.
*/
public static function setup_relationships(SimpleXMLElement $entry, PluginImport $importer, $strategy, array $otherentries)
{
switch ($strategy) {
case self::STRATEGY_IMPORT_AS_BLOG:
foreach ($otherentries as $entryid) {
$blogpostentry = $importer->get_entry_by_id($entryid);
// Get all attachments this blogpost things are attached to it
// TODO: get all entries that think they're attached to the blogpost.
// I think we can only look for files, Mahara doesn't understand
// attaching something that isn't a file to a blogpost
foreach ($blogpostentry->link as $blogpostlink) {
$blogpost = null;
if ($importer->curie_equals($blogpostlink['rel'], PluginImportLeap::NS_LEAP, 'has_attachment') && isset($blogpostlink['href'])) {
if (!$blogpost) {
$artefactids = $importer->get_artefactids_imported_by_entryid((string) $blogpostentry->id);
$blogpost = new ArtefactTypeBlogPost($artefactids[0]);
}
$importer->trace("Attaching file {$blogpostlink['href']} to blog post {$blogpostentry->id}", PluginImportLeap::LOG_LEVEL_VERBOSE);
$artefactids = $importer->get_artefactids_imported_by_entryid((string) $blogpostlink['href']);
$blogpost->attach_file($artefactids[0]);
}
if ($blogpost) {
$blogpost->commit();
}
}
self::setup_outoflinecontent_relationship($blogpostentry, $importer);
}
break;
case self::STRATEGY_IMPORT_AS_ENTRY:
self::setup_outoflinecontent_relationship($entry, $importer);
break;
default:
throw new ImportException($importer, 'TODO: get_string: unknown strategy chosen for importing entry');
}
}
/**
* Imports data for the personalinformation artefact type, by looking for
* it in the persondata element
*/
public static function import_author_data(PluginImport $importer, $persondataid)
{
if ($persondataid) {
$composites = array();
$person = $importer->get_entry_by_id($persondataid);
$namespaces = $importer->get_namespaces();
$ns = $importer->get_leap2a_namespace();
$persondata = $person->xpath($namespaces[$ns] . ':persondata');
foreach ($persondata as $item) {
$leapattributes = PluginImportLeap::get_attributes($item, $ns);
if (!isset($leapattributes['field'])) {
// 'Field' is required
// http://wiki.cetis.ac.uk/2009-03/Leap2A_personal_data#field
$importer->trace('WARNING: persondata element did not have leap2:field attribute');
continue;
}
if ($leapattributes['field'] == 'dob') {
$composites['dateofbirth'] = (string) $item;
}
if ($leapattributes['field'] == 'gender') {
$gender = (string) $item;
if ($gender == '1') {
$composites['gender'] = 'male';
} else {
if ($gender == '2') {
$composites['gender'] = 'female';
} else {
$importer->trace('WARNING: gender found but not male or female - no gender stored for this user');
}
}
}
$maharaattributes = PluginImportLeap::get_attributes($item, PluginImportLeap::NS_MAHARA);
if (isset($maharaattributes['field'])) {
if (in_array($maharaattributes['field'], array('placeofbirth', 'citizenship', 'visastatus', 'maritalstatus'))) {
$composites[$maharaattributes['field']] = (string) $item;
}
}
}
if ($composites) {
$importer->trace('Resume personal information:');
$importer->trace($composites);
$artefact = new ArtefactTypePersonalinformation(0, array('owner' => $importer->get('usr')));
foreach ($composites as $key => $value) {
$artefact->set_composite($key, $value);
}
$artefact->commit();
}
}
}
/**
* Custom hook to import data about the feed author.
*
* If we have a persondata element for them, we can import lots of
* different information about them into Mahara's profile section.
* Otherwise, we can only import some very basic information from the
* <author> element.
*
* @param PluginImport $importer The importer
*/
public static function import_author_data(PluginImport $importer)
{
if (self::$persondataid) {
// Grab all the leap:persondata elements and import them
$person = $importer->get_entry_by_id(self::$persondataid);
// The introduction comes from the entry content
$introduction = new ArtefactTypeIntroduction(0, array('owner' => $importer->get('usr')));
$introduction->set('title', PluginImportLeap::get_entry_content($person, $importer));
$introduction->commit();
// Most of the rest of the profile data comes from leap:persondata elements
$persondata = $person->xpath('leap:persondata');
foreach ($persondata as $item) {
$leapattributes = array();
foreach ($item->attributes(PluginImportLeap::NS_LEAP) as $key => $value) {
$leapattributes[$key] = (string) $value;
}
if (!isset($leapattributes['field'])) {
// 'Field' is required
// http://wiki.cetis.ac.uk/2009-03/LEAP2A_personal_data#field
$importer->trace('WARNING: persondata element did not have leap:field attribute');
continue;
}
self::import_persondata($importer, $item, $leapattributes);
}
// The information about someone's name is much more comprehensive
// in LEAP than what Mahara has, so we have to piece it together
self::import_namedata($importer, $persondata);
// People can have address info associated with them
$addressdata = $person->xpath('leap:spatial');
if (count($addressdata) == 1) {
self::import_addressdata($importer, $addressdata[0]);
}
} else {
$author = $importer->get('xml')->xpath('//a:feed/a:author[1]');
$author = $author[0];
if (!isset($author->name)) {
throw new ImportException($importer, 'TODO: get_string: <author> must include <name> - http://wiki.cetis.ac.uk/2009-03/LEAP2A_relationships#Author');
}
$name = (string) $author->name;
if (false !== strpos($name, ' ')) {
list($firstname, $lastname) = explode(' ', $name, 2);
self::create_artefact($importer, 'firstname', trim($firstname));
self::create_artefact($importer, 'lastname', trim($lastname));
} else {
// Blatant assumtion that the <name> is a first name
self::create_artefact($importer, 'firstname', trim($name));
}
if (isset($author->email)) {
self::create_artefact($importer, 'email', (string) $author->email);
}
if (isset($author->uri)) {
$uri = (string) $author->uri;
if (preg_match('#^https?://#', $uri)) {
self::create_artefact($importer, 'officialwebsite', (string) $author->uri);
}
}
}
}