Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/newscorm/scormOrganization.class.php

144 lines
5.0 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* Container for the scormOrganization class
* @package chamilo.learnpath.scorm
* @author Yannick Warnier <ywarnier@beeznest.org>
*/
/**
* Class defining the <organization> tag in an imsmanifest.xml file
*/
class scormOrganization
{
public $identifier = '';
public $structure = '';
public $title = '';
public $items = array();
public $metadata;
/**
* Class constructor. Depending of the type of construction called ('db' or 'manifest'), will create a scormOrganization
* object from database records or from the DOM element given as parameter
* @param string Type of construction needed ('db' or 'manifest', default = 'manifest')
* @param mixed Depending on the type given, DB id for the lp_item or reference to the DOM element
*/
public function __construct($type = 'manifest', &$element, $scorm_charset = 'UTF-8')
{
if (isset($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 = $element->childNodes;
foreach ($children as $child) {
switch ($child->nodeType) {
case XML_ELEMENT_NODE:
switch ($child->tagName) {
case 'item':
$oItem = new scormItem('manifest', $child);
if ($oItem->identifier != '') {
$this->items[$oItem->identifier] = $oItem;
}
break;
case 'metadata':
$this->metadata = new scormMetadata('manifest', $child);
break;
case 'title':
$tmp_children = $child->childNodes;
if ($tmp_children->length == 1 && $child->firstChild->nodeValue != '') {
$this->title = api_utf8_decode(api_html_entity_decode($child->firstChild->nodeValue, ENT_QUOTES, 'UTF-8'));
}
break;
}
break;
case XML_TEXT_NODE:
break;
}
}
if ($element->hasAttributes()) {
$attributes = $element->attributes;
//$keep_href = '';
foreach ($attributes as $attrib) {
switch ($attrib->name) {
case 'identifier':
$this->identifier = $attrib->value;
break;
case 'structure':
$this->structure = $attrib->value;
break;
}
}
}
return true;
}
// End parsing using PHP5 DOMXML methods.
}
return false;
}
/**
* Get a flat list of items in the organization
* @return array Array containing an ordered list of all items with their level and all information related to each item
*/
public function get_flat_items_list()
{
$list = array();
$i = 1;
foreach ($this->items as $id => $dummy) {
$abs_order = 0;
// Passes the array as a pointer so it is modified in $list directly.
$this->items[$id]->get_flat_list($list,$abs_order, $i, 0);
$i++;
}
return $list;
}
/**
* Name getter
* @return string Name or empty string
*/
public function get_name()
{
if (!empty($this->title)) {
return Database::escape_string($this->title);
} else {
return '';
}
}
/**
* Reference identifier getter
* @return string Identifier or empty string
*/
public function get_ref()
{
if (!empty($this->identifier)) {
return Database::escape_string($this->identifier);
} else {
return '';
}
}
/**
* Sets the title element
* @param string $title New title to set
*/
public function set_name($title)
{
if (!empty($title)) {
$this->title = Database::escape_string($title);
}
}
}