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521 lines
21 KiB
521 lines
21 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* @package backup-convert
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* @subpackage cc-library
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* @copyright 2011 Darko Miletic <dmiletic@moodlerooms.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once('cc_utils.php');
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require_once('cc_version_base.php');
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require_once('cc_organization.php');
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/**
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* Version 1 class of Common Cartridge
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*
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*/
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class cc_version1 extends cc_version_base {
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const webcontent = 'webcontent';
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const questionbank = 'imsqti_xmlv1p2/imscc_xmlv1p0/question-bank';
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const assessment = 'imsqti_xmlv1p2/imscc_xmlv1p0/assessment';
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const associatedcontent = 'associatedcontent/imscc_xmlv1p0/learning-application-resource';
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const discussiontopic = 'imsdt_xmlv1p0';
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const weblink = 'imswl_xmlv1p0';
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public static $checker = array(self::webcontent,
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self::assessment,
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self::associatedcontent,
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self::discussiontopic,
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self::questionbank,
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self::weblink);
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/**
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* Validate if the type are valid or not
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*
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* @param string $type
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* @return bool
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*/
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public function valid($type) {
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return in_array($type, self::$checker);
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}
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public function __construct() {
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$this->ccnamespaces = array('imscc' => 'http://www.imsglobal.org/xsd/imscc/imscp_v1p1',
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'lomimscc' => 'http://ltsc.ieee.org/xsd/imscc/LOM',
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'lom' => 'http://ltsc.ieee.org/xsd/LOM',
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'voc' => 'http://ltsc.ieee.org/xsd/LOM/vocab',
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'xsi' => 'http://www.w3.org/2001/XMLSchema-instance'
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);
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$this->ccnsnames = array(
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'imscc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/imscp_v1p2_localised.xsd',
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'lom' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_2/lomLoose_localised.xsd',
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'lomimscc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_1/lomLoose_localised.xsd',
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'voc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_2/vocab/loose.xsd'
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);
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$this->ccversion = '1.0.0';
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$this->camversion = '1.0.0';
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$this->_generator = 'Moodle 2 Common Cartridge generator';
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}
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protected function on_create(DOMDocument &$doc, $rootmanifestnode = null, $nmanifestID = null) {
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$doc->formatOutput = true;
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$doc->preserveWhiteSpace = true;
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$this->manifestID = is_null($nmanifestID) ? cc_helpers::uuidgen('M_') : $nmanifestID;
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$mUUID = $doc->createAttribute('identifier');
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$mUUID->nodeValue = $this->manifestID;
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if (is_null($rootmanifestnode)) {
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if (!empty($this->_generator)) {
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$comment = $doc->createComment($this->_generator);
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$doc->appendChild($comment);
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}
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$rootel = $doc->createElementNS($this->ccnamespaces['imscc'], 'manifest');
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$rootel->appendChild($mUUID);
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$doc->appendChild($rootel);
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// Add all namespaces.
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foreach ($this->ccnamespaces as $key => $value) {
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$dummy_attr = $key.":dummy";
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$doc->createAttributeNS($value, $dummy_attr);
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}
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// Add location of schemas.
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$schemaLocation = '';
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foreach ($this->ccnsnames as $key => $value) {
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$vt = empty($schemaLocation) ? '' : ' ';
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$schemaLocation .= $vt.$this->ccnamespaces[$key].' '.$value;
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}
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$aSchemaLoc = $doc->createAttributeNS($this->ccnamespaces['xsi'], 'xsi:schemaLocation');
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$aSchemaLoc->nodeValue = $schemaLocation;
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$rootel->appendChild($aSchemaLoc);
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} else {
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$rootel = $doc->createElementNS($this->ccnamespaces['imscc'], 'imscc:manifest');
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$rootel->appendChild($mUUID);
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}
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$metadata = $doc->createElementNS($this->ccnamespaces['imscc'], 'metadata');
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$schema = $doc->createElementNS($this->ccnamespaces['imscc'], 'schema', 'IMS Common Cartridge');
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$schemaversion = $doc->createElementNS($this->ccnamespaces['imscc'], 'schemaversion', $this->ccversion);
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$metadata->appendChild($schema);
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$metadata->appendChild($schemaversion);
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$rootel->appendChild($metadata);
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if (!is_null($rootmanifestnode)) {
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$rootmanifestnode->appendChild($rootel);
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}
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$organizations = $doc->createElementNS($this->ccnamespaces['imscc'], 'organizations');
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$rootel->appendChild($organizations);
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$resources = $doc->createElementNS($this->ccnamespaces['imscc'], 'resources');
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$rootel->appendChild($resources);
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return true;
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}
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protected function update_attribute(DOMDocument &$doc, $attrname, $attrvalue, DOMElement &$node) {
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$busenew = (is_object($node) && $node->hasAttribute($attrname));
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$nResult = null;
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if (!$busenew && is_null($attrvalue)) {
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$node->removeAttribute($attrname);
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} else {
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$nResult = $busenew ? $node->getAttributeNode($attrname) : $doc->createAttribute($attrname);
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$nResult->nodeValue = $attrvalue;
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if (!$busenew) {
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$node->appendChild($nResult);
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}
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}
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return $nResult;
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}
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protected function update_attribute_ns(DOMDocument &$doc, $attrname, $attrnamespace,$attrvalue, DOMElement &$node) {
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$busenew = (is_object($node) && $node->hasAttributeNS($attrnamespace, $attrname));
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$nResult = null;
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if (!$busenew && is_null($attrvalue)) {
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$node->removeAttributeNS($attrnamespace, $attrname);
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} else {
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$nResult = $busenew ? $node->getAttributeNodeNS($attrnamespace, $attrname) :
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$doc->createAttributeNS($attrnamespace, $attrname);
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$nResult->nodeValue = $attrvalue;
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if (!$busenew) {
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$node->appendChild($nResult);
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}
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}
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return $nResult;
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}
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protected function get_child_node(DOMDocument &$doc, $itemname, DOMElement &$node) {
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$nlist = $node->getElementsByTagName($itemname);
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$item = is_object($nlist) && ($nlist->length > 0) ? $nlist->item(0) : null;
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return $item;
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}
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protected function update_child_item(DOMDocument &$doc, $itemname, $itemvalue, DOMElement &$node, $attrtostore=null) {
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$tnode = $this->get_child_node($doc, 'title', $node);
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$usenew = is_null($tnode);
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$tnode = $usenew ? $doc->createElementNS($this->ccnamespaces['imscc'], $itemname) : $tnode;
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if (!is_null($attrtostore)) {
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foreach ($attrtostore as $key => $value) {
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$this->update_attribute($doc, $key, $value, $tnode);
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}
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}
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$tnode->nodeValue = $itemvalue;
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if ($usenew) {
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$node->appendChild($tnode);
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}
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}
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protected function update_items($items, DOMDocument &$doc, DOMElement &$xmlnode) {
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foreach ($items as $key => $item) {
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$itemnode = $doc->createElementNS($this->ccnamespaces['imscc'], 'item');
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$this->update_attribute($doc, 'identifier' , $key , $itemnode);
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$this->update_attribute($doc, 'identifierref', $item->identifierref, $itemnode);
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$this->update_attribute($doc, 'parameters' , $item->parameters , $itemnode);
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if (!empty($item->title)) {
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$titlenode = $doc->createElementNS($this->ccnamespaces['imscc'],
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'title',
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$item->title);
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$itemnode->appendChild($titlenode);
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}
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if ($item->has_child_items()) {
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$this->update_items($item->childitems, $doc, $itemnode);
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}
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$xmlnode->appendChild($itemnode);
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}
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}
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/**
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* Create a Resource (How to)
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*
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* @param cc_i_resource $res
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* @param DOMDocument $doc
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* @param object $xmlnode
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* @return DOMNode
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*/
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protected function create_resource(cc_i_resource &$res, DOMDocument &$doc, $xmlnode=null) {
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$usenew = is_object($xmlnode);
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$dnode = $usenew ? $xmlnode : $doc->createElementNS($this->ccnamespaces['imscc'], "resource");
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$this->update_attribute($doc, 'identifier', $res->identifier, $dnode);
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$this->update_attribute($doc, 'type', $res->type, $dnode);
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!is_null($res->href) ? $this->update_attribute($doc, 'href', $res->href, $dnode) : null;
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$this->update_attribute($doc, 'base', $res->base, $dnode);
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foreach ($res->files as $file) {
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$nd = $doc->createElementNS($this->ccnamespaces['imscc'], 'file');
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$ndatt = $doc->createAttribute('href');
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$ndatt->nodeValue = $file;
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$nd->appendChild($ndatt);
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$dnode->appendChild($nd);
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}
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$this->resources[$res->identifier] = $res;
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$this->resources_ind[$res->files[0]] = $res->identifier;
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foreach ($res->dependency as $dependency) {
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$nd = $doc->createElementNS($this->ccnamespaces['imscc'], 'dependency');
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$ndatt = $doc->createAttribute('identifierref');
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$ndatt->nodeValue = $dependency;
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$nd->appendChild($ndatt);
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$dnode->appendChild($nd);
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}
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return $dnode;
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}
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/**
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* Create an Item Folder (How To)
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*
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* @param cc_i_organization $org
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* @param DOMDocument $doc
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* @param DOMElement $xmlnode
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*/
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protected function create_item_folder(cc_i_organization &$org, DOMDocument &$doc, DOMElement &$xmlnode = null) {
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$itemfoldernode = $doc->createElementNS($this->ccnamespaces['imscc'], 'item');
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$this->update_attribute($doc, 'identifier', "root", $itemfoldernode);
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if ($org->has_items()) {
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$this->update_items($org->itemlist, $doc, $itemfoldernode);
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}
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if (is_null($this->organizations)) {
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$this->organizations = array();
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}
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$this->organizations[$org->identifier] = $org;
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$xmlnode->appendChild($itemfoldernode);
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}
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/**
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* Create an Organization (How To)
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*
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* @param cc_i_organization $org
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* @param DOMDocument $doc
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* @param object $xmlnode
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* @return DOMNode
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*/
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protected function create_organization(cc_i_organization &$org, DOMDocument &$doc, $xmlnode = null) {
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$usenew = is_object($xmlnode);
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$dnode = $usenew ? $xmlnode : $doc->createElementNS($this->ccnamespaces['imscc'], "organization");
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$this->update_attribute($doc, 'identifier', $org->identifier, $dnode);
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$this->update_attribute($doc, 'structure', $org->structure, $dnode);
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$this->create_item_folder($org, $doc, $dnode);
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return $dnode;
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}
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/**
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* Create Metadata For Manifest (How To)
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*
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* @param cc_i_metadata_manifest $met
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* @param DOMDocument $doc
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* @param object $xmlnode
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* @return DOMNode
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*/
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protected function create_metadata_manifest(cc_i_metadata_manifest $met, DOMDocument &$doc, $xmlnode = null) {
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$dnode = $doc->createElementNS($this->ccnamespaces['lomimscc'], "lom");
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if (!empty($xmlnode)) {
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$xmlnode->appendChild($dnode);
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}
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$dnodegeneral = empty($met->arraygeneral) ? null : $this->create_metadata_general($met, $doc, $xmlnode);
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$dnodetechnical = empty($met->arraytech) ? null : $this->create_metadata_technical($met, $doc, $xmlnode);
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$dnoderights = empty($met->arrayrights) ? null : $this->create_metadata_rights($met, $doc, $xmlnode);
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$dnodelifecycle = empty($met->arraylifecycle) ? null : $this->create_metadata_lifecycle($met, $doc, $xmlnode);
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!is_null($dnodegeneral) ? $dnode->appendChild($dnodegeneral) : null;
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!is_null($dnodetechnical) ? $dnode->appendChild($dnodetechnical) : null;
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!is_null($dnoderights) ? $dnode->appendChild($dnoderights) : null;
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!is_null($dnodelifecycle) ? $dnode->appendChild($dnodelifecycle) : null;
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return $dnode;
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}
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/**
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* Create Metadata For Resource (How To)
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*
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* @param cc_i_metadata_resource $met
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* @param DOMDocument $doc
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* @param object $xmlnode
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* @return DOMNode
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*/
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protected function create_metadata_resource(cc_i_metadata_resource $met, DOMDocument &$doc, $xmlnode = null) {
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$dnode = $doc->createElementNS($this->ccnamespaces['lom'], "lom");
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!empty($xmlnode) ? $xmlnode->appendChild($dnode) : null;
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!empty($met->arrayeducational) ? $this->create_metadata_educational($met, $doc, $dnode) : null;
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return $dnode;
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}
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/**
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* Create Metadata For File (How To)
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*
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* @param cc_i_metadata_file $met
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* @param DOMDocument $doc
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* @param Object $xmlnode
|
||
|
|
* @return DOMNode
|
||
|
|
*/
|
||
|
|
protected function create_metadata_file(cc_i_metadata_file $met, DOMDocument &$doc, $xmlnode = null) {
|
||
|
|
|
||
|
|
$dnode = $doc->createElementNS($this->ccnamespaces['lom'], "lom");
|
||
|
|
|
||
|
|
!empty($xmlnode) ? $xmlnode->appendChild($dnode) : null;
|
||
|
|
!empty($met->arrayeducational) ? $this->create_metadata_educational($met, $doc, $dnode) : null;
|
||
|
|
|
||
|
|
return $dnode;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create General Metadata (How To)
|
||
|
|
*
|
||
|
|
* @param object $met
|
||
|
|
* @param DOMDocument $doc
|
||
|
|
* @param object $xmlnode
|
||
|
|
* @return DOMNode
|
||
|
|
*/
|
||
|
|
protected function create_metadata_general($met, DOMDocument &$doc, $xmlnode) {
|
||
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'general');
|
||
|
|
|
||
|
|
foreach ($met->arraygeneral as $name => $value) {
|
||
|
|
!is_array($value) ? $value = array($value) : null;
|
||
|
|
foreach ($value as $v) {
|
||
|
|
if ($name != 'language' && $name != 'catalog' && $name != 'entry') {
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'string', $v[1]);
|
||
|
|
$ndatt = $doc->createAttribute('language');
|
||
|
|
$ndatt->nodeValue = $v[0];
|
||
|
|
$nd3->appendChild($ndatt);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
} else {
|
||
|
|
if ($name == 'language') {
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]);
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!empty($met->arraygeneral['catalog']) || !empty($met->arraygeneral['entry'])) {
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'identifier');
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
if (!empty($met->arraygeneral['catalog'])) {
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'catalog', $met->arraygeneral['catalog'][0][0]);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
}
|
||
|
|
if (!empty($met->arraygeneral['entry'])) {
|
||
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'entry', $met->arraygeneral['entry'][0][0]);
|
||
|
|
$nd2->appendChild($nd4);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $nd;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create Technical Metadata (How To)
|
||
|
|
*
|
||
|
|
* @param object $met
|
||
|
|
* @param DOMDocument $doc
|
||
|
|
* @param object $xmlnode
|
||
|
|
* @return DOMNode
|
||
|
|
*/
|
||
|
|
protected function create_metadata_technical($met, DOMDocument &$doc, $xmlnode) {
|
||
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'technical');
|
||
|
|
$xmlnode->appendChild($nd);
|
||
|
|
|
||
|
|
foreach ($met->arraytech as $name => $value) {
|
||
|
|
!is_array($value) ? $value = array($value) : null;
|
||
|
|
foreach ($value as $v) {
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]);
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $nd;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create Rights Metadata (How To)
|
||
|
|
*
|
||
|
|
* @param object $met
|
||
|
|
* @param DOMDocument $doc
|
||
|
|
* @param object $xmlnode
|
||
|
|
* @return DOMNode
|
||
|
|
*/
|
||
|
|
protected function create_metadata_rights($met, DOMDocument &$doc, $xmlnode) {
|
||
|
|
|
||
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'rights');
|
||
|
|
|
||
|
|
foreach ($met->arrayrights as $name => $value) {
|
||
|
|
!is_array($value) ? $value = array($value) : null;
|
||
|
|
foreach ($value as $v) {
|
||
|
|
if ($name == 'description') {
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'string', $v[1]);
|
||
|
|
$ndatt = $doc->createAttribute('language');
|
||
|
|
$ndatt->nodeValue = $v[0];
|
||
|
|
$nd3->appendChild($ndatt);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
} else if ($name == 'copyrightAndOtherRestrictions' || $name == 'cost') {
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'value', $v[0]);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $nd;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create Lifecycle Metadata (How To)
|
||
|
|
*
|
||
|
|
* @param object $met
|
||
|
|
* @param DOMDocument $doc
|
||
|
|
* @param object $xmlnode
|
||
|
|
* @return DOMNode
|
||
|
|
*/
|
||
|
|
protected function create_metadata_lifecycle($met, DOMDocument &$doc, $xmlnode) {
|
||
|
|
|
||
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'lifeCycle');
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'contribute');
|
||
|
|
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
$xmlnode->appendChild($nd);
|
||
|
|
|
||
|
|
foreach ($met->arraylifecycle as $name => $value) {
|
||
|
|
!is_array($value) ? $value = array($value) : null;
|
||
|
|
foreach ($value as $v) {
|
||
|
|
if ($name == 'role') {
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'value', $v[0]);
|
||
|
|
$nd3->appendChild($nd4);
|
||
|
|
} else {
|
||
|
|
if ($name == 'date') {
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'dateTime', $v[0]);
|
||
|
|
$nd3->appendChild($nd4);
|
||
|
|
} else {
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $nd;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create Education Metadata (How To)
|
||
|
|
*
|
||
|
|
* @param object $met
|
||
|
|
* @param DOMDocument $doc
|
||
|
|
* @param object $xmlnode
|
||
|
|
* @return DOMNode
|
||
|
|
*/
|
||
|
|
public function create_metadata_educational($met, DOMDocument &$doc, $xmlnode) {
|
||
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lom'], 'educational');
|
||
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lom'], 'intendedEndUserRole');
|
||
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['voc'], 'vocabulary');
|
||
|
|
|
||
|
|
$xmlnode->appendChild($nd);
|
||
|
|
$nd->appendChild($nd2);
|
||
|
|
$nd2->appendChild($nd3);
|
||
|
|
|
||
|
|
foreach ($met->arrayeducational as $name => $value) {
|
||
|
|
!is_array($value) ? $value = array($value) : null;
|
||
|
|
foreach ($value as $v) {
|
||
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['voc'], $name, $v[0]);
|
||
|
|
$nd3->appendChild($nd4);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $nd;
|
||
|
|
}
|
||
|
|
}
|