*/ /** * Class defining the tag in an imsmanifest.xml file. */ class scormResource { public $identifier = ''; public $type = 'webcontent'; //public $identifierref = ''; public $scormtype = 'sco'; // Fix problems with ENI content where asset is not defined. public $base = ''; public $href = ''; public $metadata; //public $file_href; //public $file_metadata; public $files = []; public $dependencies = []; /** * Class constructor. Depending of the type of construction called ('db' or 'manifest'), will create a scormResource * object from database records or from the DOM element given as parameter. * * @param string Type of construction needed ('db' or 'manifest', default = 'manifest') * @param mixed Depending on the type given, DB id for the lp_item or reference to the DOM element */ public function __construct($type = 'manifest', &$element) { if (isset($element)) { // Parsing using PHP5 DOMXML methods. switch ($type) { case 'db': // TODO: Implement this way of metadata object creation. return false; case 'manifest': // Do the same as the default. default: //if ($first_item->type == XML_ELEMENT_NODE) this is already check prior to the call to this function. $children = $element->childNodes; if (is_array($children)) { foreach ($children as $child) { switch ($child->nodeType) { case XML_ELEMENT_NODE: switch ($child->tagName) { case 'file': //echo "Child is a file tag
\n"; $this->files[] = $child->getAttribute('href'); break; case 'metadata': //echo "Child is a metadata tag
\n"; $this->metadata = new scormMetadata('manifest', $child); break; case 'dependency': // Need to get identifierref attribute inside dependency node. // dependencies[] array represents all tags united. $this->dependencies[] = $child->getAttribute('identifierref'); break; } break; } } } //$keep_href = ''; if ($element->hasAttributes()) { //in some cases we get here with an empty attributes array // TODO: Find when and why we get such a case (empty array). $attributes = $element->attributes; foreach ($attributes as $attrib) { switch ($attrib->name) { case 'identifier': $this->identifier = $attrib->value; break; case 'type': if (!empty($attrib->value)) { $this->type = $attrib->value; } break; case 'scormtype': if (!empty($attrib->value)) { $this->scormtype = $attrib->value; } break; case 'base': $this->base = $attrib->value; break; case 'href': $this->href = $attrib->value; break; } } } return true; } // End parsing using PHP5 DOMXML methods. } return false; } /** * Path getter. * * @return string Path for this resource */ public function get_path() { if (!empty($this->href)) { return Database::escape_string($this->href); } else { return ''; } } /** * Scorm type getter. * * @return string generally 'asset' or 'sco' as these are the only two values defined in SCORM 1.2 */ public function get_scorm_type() { if (!empty($this->scormtype)) { return Database::escape_string($this->scormtype); } else { return ''; } } }