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<?php |
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/* Source: https://github.com/moodle/moodle/blob/MOODLE_310_STABLE/backup/cc/cc_lib/cc_version1.php under GNU/GPL license */ |
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/** |
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* Version 1 class of Common Cartridge. |
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*/ |
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class CcVersion1 extends CcVersionBase |
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{ |
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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 $checker = [self::WEBCONTENT, |
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self::ASSESSMENT, |
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self::ASSOCIATEDCONTENT, |
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self::DISCUSSIONTOPIC, |
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self::QUESTIONBANK, |
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self::WEBLINK, ]; |
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public function __construct() |
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{ |
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$this->ccnamespaces = ['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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$this->ccnsnames = [ |
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'imscc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/imscp_v1p2_localised.xsd', |
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'lom' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_2/lomLoose_localised.xsd', |
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'lomimscc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_1/lomLoose_localised.xsd', |
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'voc' => 'http://www.imsglobal.org/profile/cc/ccv1p0/derived_schema/domainProfile_2/vocab/loose.xsd', |
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]; |
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$this->ccversion = '1.0.0'; |
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$this->camversion = '1.0.0'; |
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$this->_generator = 'Common Cartridge generator'; |
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} |
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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 $type |
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* |
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* @return bool |
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*/ |
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public function valid($type) |
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{ |
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return in_array($type, self::$checker); |
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} |
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/** |
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* Create Education Metadata (How To). |
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* |
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* @param object $met |
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* @param object $xmlnode |
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* |
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* @return DOMNode |
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*/ |
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public function createMetadataEducational($met, DOMDocument &$doc, $xmlnode) |
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{ |
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$nd = $doc->createElementNS($this->ccnamespaces['lom'], 'educational'); |
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$nd2 = $doc->createElementNS($this->ccnamespaces['lom'], 'intendedEndUserRole'); |
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$nd3 = $doc->createElementNS($this->ccnamespaces['voc'], 'vocabulary'); |
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$xmlnode->appendChild($nd); |
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$nd->appendChild($nd2); |
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$nd2->appendChild($nd3); |
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foreach ($met->arrayeducational as $name => $value) { |
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!is_array($value) ? $value = [$value] : null; |
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foreach ($value as $v) { |
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$nd4 = $doc->createElementNS($this->ccnamespaces['voc'], $name, $v[0]); |
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$nd3->appendChild($nd4); |
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} |
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} |
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return $nd; |
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} |
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protected function onCreate(DOMDocument &$doc, $rootmanifestnode = null, $nmanifestID = null) |
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{ |
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$doc->formatOutput = true; |
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$doc->preserveWhiteSpace = true; |
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$this->manifestID = is_null($nmanifestID) ? CcHelpers::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 updateAttribute(DOMDocument &$doc, $attrname, $attrvalue, DOMElement &$node) |
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{ |
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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 $nResult; |
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} |
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protected function updateAttributeNs(DOMDocument &$doc, $attrname, $attrnamespace, $attrvalue, DOMElement &$node) |
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{ |
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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 $nResult; |
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} |
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protected function getChildNode(DOMDocument &$doc, $itemname, DOMElement &$node) |
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{ |
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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 $item; |
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} |
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protected function updateChildItem(DOMDocument &$doc, $itemname, $itemvalue, DOMElement &$node, $attrtostore = null) |
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{ |
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$tnode = $this->getChildNode($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->updateAttribute($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 updateItems($items, DOMDocument &$doc, DOMElement &$xmlnode) |
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{ |
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foreach ($items as $key => $item) { |
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$itemnode = $doc->createElementNS($this->ccnamespaces['imscc'], 'item'); |
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$this->updateAttribute($doc, 'identifier', $key, $itemnode); |
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$this->updateAttribute($doc, 'identifierref', $item->identifierref, $itemnode); |
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$this->updateAttribute($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->hasChildItems()) { |
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$this->updateItems($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 CcIResource $res |
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* @param DOMDocument $doc |
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* @param object $xmlnode |
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* |
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* @return DOMNode |
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*/ |
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protected function createResource(CcIResource &$res, DOMDocument &$doc, $xmlnode = null) |
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{ |
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$usenew = is_object($xmlnode); |
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$dnode = $usenew ? $xmlnode : $doc->createElementNS($this->ccnamespaces['imscc'], "resource"); |
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$this->updateAttribute($doc, 'identifier', $res->identifier, $dnode); |
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$this->updateAttribute($doc, 'type', $res->type, $dnode); |
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!is_null($res->href) ? $this->updateAttribute($doc, 'href', $res->href, $dnode) : null; |
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$this->updateAttribute($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->resourcesInd[$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 CcIOrganization $org |
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* @param DOMDocument $doc |
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* @param DOMElement $xmlnode |
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*/ |
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protected function createItemFolder(CcIOrganization &$org, DOMDocument &$doc, DOMElement &$xmlnode = null) |
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{ |
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$itemfoldernode = $doc->createElementNS($this->ccnamespaces['imscc'], 'item'); |
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$this->updateAttribute($doc, 'identifier', "root", $itemfoldernode); |
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if ($org->hasItems()) { |
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$this->updateItems($org->itemlist, $doc, $itemfoldernode); |
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} |
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if (is_null($this->organizations)) { |
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$this->organizations = []; |
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} |
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$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 CcIOrganization $org |
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* @param DOMDocument $doc |
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290
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* @param object $xmlnode |
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* |
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292
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* @return DOMNode |
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293
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*/ |
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294
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protected function createOrganization(CcIOrganization &$org, DOMDocument &$doc, $xmlnode = null) |
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295
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{ |
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296
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$usenew = is_object($xmlnode); |
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297
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|
$dnode = $usenew ? $xmlnode : $doc->createElementNS($this->ccnamespaces['imscc'], "organization"); |
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298
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$this->updateAttribute($doc, 'identifier', $org->identifier, $dnode); |
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299
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$this->updateAttribute($doc, 'structure', $org->structure, $dnode); |
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300
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301
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$this->createItemFolder($org, $doc, $dnode); |
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302
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303
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return $dnode; |
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304
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} |
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305
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306
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/** |
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307
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* Create Metadata For Manifest (How To). |
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308
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* |
|
309
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* @param CcIMetadataManifest $met |
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310
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* @param DOMDocument $doc |
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311
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* @param object $xmlnode |
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312
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* |
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313
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* @return DOMNode |
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314
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*/ |
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315
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protected function createMetadataManifest(CcIMetadataManifest $met, DOMDocument &$doc, $xmlnode = null) |
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316
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{ |
|
317
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$dnode = $doc->createElementNS($this->ccnamespaces['lomimscc'], "lom"); |
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318
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if (!empty($xmlnode)) { |
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319
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$xmlnode->appendChild($dnode); |
|
320
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} |
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321
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$dnodegeneral = empty($met->arraygeneral) ? null : $this->createMetadataGeneral($met, $doc, $xmlnode); |
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322
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$dnodetechnical = empty($met->arraytech) ? null : $this->createMetadataTechnical($met, $doc, $xmlnode); |
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323
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$dnoderights = empty($met->arrayrights) ? null : $this->createMetadataRights($met, $doc, $xmlnode); |
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324
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$dnodelifecycle = empty($met->arraylifecycle) ? null : $this->createMetadataLifecycle($met, $doc, $xmlnode); |
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325
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326
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|
!is_null($dnodegeneral) ? $dnode->appendChild($dnodegeneral) : null; |
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327
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!is_null($dnodetechnical) ? $dnode->appendChild($dnodetechnical) : null; |
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328
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|
!is_null($dnoderights) ? $dnode->appendChild($dnoderights) : null; |
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329
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|
!is_null($dnodelifecycle) ? $dnode->appendChild($dnodelifecycle) : null; |
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330
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|
331
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|
return $dnode; |
|
332
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|
|
} |
|
333
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|
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|
334
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|
|
/** |
|
335
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|
|
* Create Metadata For Resource (How To). |
|
336
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|
|
* |
|
337
|
|
|
* @param CcIMetadataResource $met |
|
338
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|
|
* @param DOMDocument $doc |
|
339
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|
* @param object $xmlnode |
|
340
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|
* |
|
341
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|
|
* @return DOMNode |
|
342
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|
|
*/ |
|
343
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|
protected function createMetadataResource(CcIMetadataResource $met, DOMDocument &$doc, $xmlnode = null) |
|
344
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|
|
{ |
|
345
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|
$dnode = $doc->createElementNS($this->ccnamespaces['lom'], "lom"); |
|
346
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|
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|
|
347
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|
|
!empty($xmlnode) ? $xmlnode->appendChild($dnode) : null; |
|
348
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|
|
!empty($met->arrayeducational) ? $this->createMetadataEducational($met, $doc, $dnode) : null; |
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|
|
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|
|
349
|
|
|
|
|
350
|
|
|
return $dnode; |
|
351
|
|
|
} |
|
352
|
|
|
|
|
353
|
|
|
/** |
|
354
|
|
|
* Create Metadata For File (How To). |
|
355
|
|
|
* |
|
356
|
|
|
* @param CcIMetadataFile $met |
|
357
|
|
|
* @param DOMDocument $doc |
|
358
|
|
|
* @param object $xmlnode |
|
359
|
|
|
* |
|
360
|
|
|
* @return DOMNode |
|
361
|
|
|
*/ |
|
362
|
|
|
protected function createMetadataFile(CcIMetadataFile $met, DOMDocument &$doc, $xmlnode = null) |
|
363
|
|
|
{ |
|
364
|
|
|
$dnode = $doc->createElementNS($this->ccnamespaces['lom'], "lom"); |
|
365
|
|
|
|
|
366
|
|
|
!empty($xmlnode) ? $xmlnode->appendChild($dnode) : null; |
|
367
|
|
|
!empty($met->arrayeducational) ? $this->createMetadataEducational($met, $doc, $dnode) : null; |
|
|
|
|
|
|
368
|
|
|
|
|
369
|
|
|
return $dnode; |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
/** |
|
373
|
|
|
* Create General Metadata (How To). |
|
374
|
|
|
* |
|
375
|
|
|
* @param object $met |
|
376
|
|
|
* @param object $xmlnode |
|
377
|
|
|
* |
|
378
|
|
|
* @return DOMNode |
|
379
|
|
|
*/ |
|
380
|
|
|
protected function createMetadataGeneral($met, DOMDocument &$doc, $xmlnode) |
|
381
|
|
|
{ |
|
382
|
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'general'); |
|
383
|
|
|
|
|
384
|
|
|
foreach ($met->arraygeneral as $name => $value) { |
|
385
|
|
|
!is_array($value) ? $value = [$value] : null; |
|
386
|
|
|
foreach ($value as $v) { |
|
387
|
|
|
if ($name != 'language' && $name != 'catalog' && $name != 'entry') { |
|
388
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name); |
|
389
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'string', $v[1]); |
|
390
|
|
|
$ndatt = $doc->createAttribute('language'); |
|
391
|
|
|
$ndatt->nodeValue = $v[0]; |
|
392
|
|
|
$nd3->appendChild($ndatt); |
|
393
|
|
|
$nd2->appendChild($nd3); |
|
394
|
|
|
$nd->appendChild($nd2); |
|
395
|
|
|
} else { |
|
396
|
|
|
if ($name == 'language') { |
|
397
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]); |
|
398
|
|
|
$nd->appendChild($nd2); |
|
399
|
|
|
} |
|
400
|
|
|
} |
|
401
|
|
|
} |
|
402
|
|
|
} |
|
403
|
|
|
if (!empty($met->arraygeneral['catalog']) || !empty($met->arraygeneral['entry'])) { |
|
404
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'identifier'); |
|
405
|
|
|
$nd->appendChild($nd2); |
|
406
|
|
|
if (!empty($met->arraygeneral['catalog'])) { |
|
407
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'catalog', $met->arraygeneral['catalog'][0][0]); |
|
408
|
|
|
$nd2->appendChild($nd3); |
|
409
|
|
|
} |
|
410
|
|
|
if (!empty($met->arraygeneral['entry'])) { |
|
411
|
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'entry', $met->arraygeneral['entry'][0][0]); |
|
412
|
|
|
$nd2->appendChild($nd4); |
|
413
|
|
|
} |
|
414
|
|
|
} |
|
415
|
|
|
|
|
416
|
|
|
return $nd; |
|
417
|
|
|
} |
|
418
|
|
|
|
|
419
|
|
|
/** |
|
420
|
|
|
* Create Technical Metadata (How To). |
|
421
|
|
|
* |
|
422
|
|
|
* @param object $met |
|
423
|
|
|
* @param object $xmlnode |
|
424
|
|
|
* |
|
425
|
|
|
* @return DOMNode |
|
426
|
|
|
*/ |
|
427
|
|
|
protected function createMetadataTechnical($met, DOMDocument &$doc, $xmlnode) |
|
428
|
|
|
{ |
|
429
|
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'technical'); |
|
430
|
|
|
$xmlnode->appendChild($nd); |
|
431
|
|
|
|
|
432
|
|
|
foreach ($met->arraytech as $name => $value) { |
|
433
|
|
|
!is_array($value) ? $value = [$value] : null; |
|
434
|
|
|
foreach ($value as $v) { |
|
435
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]); |
|
436
|
|
|
$nd->appendChild($nd2); |
|
437
|
|
|
} |
|
438
|
|
|
} |
|
439
|
|
|
|
|
440
|
|
|
return $nd; |
|
441
|
|
|
} |
|
442
|
|
|
|
|
443
|
|
|
/** |
|
444
|
|
|
* Create Rights Metadata (How To). |
|
445
|
|
|
* |
|
446
|
|
|
* @param object $met |
|
447
|
|
|
* @param object $xmlnode |
|
448
|
|
|
* |
|
449
|
|
|
* @return DOMNode |
|
450
|
|
|
*/ |
|
451
|
|
|
protected function createMetadataRights($met, DOMDocument &$doc, $xmlnode) |
|
452
|
|
|
{ |
|
453
|
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'rights'); |
|
454
|
|
|
|
|
455
|
|
|
foreach ($met->arrayrights as $name => $value) { |
|
456
|
|
|
!is_array($value) ? $value = [$value] : null; |
|
457
|
|
|
foreach ($value as $v) { |
|
458
|
|
|
if ($name == 'description') { |
|
459
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name); |
|
460
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'string', $v[1]); |
|
461
|
|
|
$ndatt = $doc->createAttribute('language'); |
|
462
|
|
|
$ndatt->nodeValue = $v[0]; |
|
463
|
|
|
$nd3->appendChild($ndatt); |
|
464
|
|
|
$nd2->appendChild($nd3); |
|
465
|
|
|
$nd->appendChild($nd2); |
|
466
|
|
|
} elseif ($name == 'copyrightAndOtherRestrictions' || $name == 'cost') { |
|
467
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name); |
|
468
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'value', $v[0]); |
|
469
|
|
|
$nd2->appendChild($nd3); |
|
470
|
|
|
$nd->appendChild($nd2); |
|
471
|
|
|
} |
|
472
|
|
|
} |
|
473
|
|
|
} |
|
474
|
|
|
|
|
475
|
|
|
return $nd; |
|
476
|
|
|
} |
|
477
|
|
|
|
|
478
|
|
|
/** |
|
479
|
|
|
* Create Lifecycle Metadata (How To). |
|
480
|
|
|
* |
|
481
|
|
|
* @param object $met |
|
482
|
|
|
* @param DOMDocument $doc |
|
483
|
|
|
* @param object $met |
|
484
|
|
|
* @param object $xmlnode |
|
485
|
|
|
* |
|
486
|
|
|
* @return DOMNode |
|
487
|
|
|
*/ |
|
488
|
|
|
protected function createMetadataLifecycle($met, DOMDocument &$doc, $xmlnode) |
|
489
|
|
|
{ |
|
490
|
|
|
$nd = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'lifeCycle'); |
|
491
|
|
|
$nd2 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'contribute'); |
|
492
|
|
|
|
|
493
|
|
|
$nd->appendChild($nd2); |
|
494
|
|
|
$xmlnode->appendChild($nd); |
|
495
|
|
|
|
|
496
|
|
|
foreach ($met->arraylifecycle as $name => $value) { |
|
497
|
|
|
!is_array($value) ? $value = [$value] : null; |
|
498
|
|
|
foreach ($value as $v) { |
|
499
|
|
|
if ($name == 'role') { |
|
500
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name); |
|
501
|
|
|
$nd2->appendChild($nd3); |
|
502
|
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'value', $v[0]); |
|
503
|
|
|
$nd3->appendChild($nd4); |
|
504
|
|
|
} else { |
|
505
|
|
|
if ($name == 'date') { |
|
506
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name); |
|
507
|
|
|
$nd2->appendChild($nd3); |
|
508
|
|
|
$nd4 = $doc->createElementNS($this->ccnamespaces['lomimscc'], 'dateTime', $v[0]); |
|
509
|
|
|
$nd3->appendChild($nd4); |
|
510
|
|
|
} else { |
|
511
|
|
|
$nd3 = $doc->createElementNS($this->ccnamespaces['lomimscc'], $name, $v[0]); |
|
512
|
|
|
$nd2->appendChild($nd3); |
|
513
|
|
|
} |
|
514
|
|
|
} |
|
515
|
|
|
} |
|
516
|
|
|
} |
|
517
|
|
|
|
|
518
|
|
|
return $nd; |
|
519
|
|
|
} |
|
520
|
|
|
} |
|
521
|
|
|
|
chamilo /
chamilo-lms
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