class.ilSCORM2004Item.php

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<?php

/* Copyright (c) 1998-2011 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once("./Modules/Scorm2004/classes/seq_editor/class.ilSCORM2004SeqNode.php");

class ilSCORM2004Item
{
        //db fields
        private $id = null;
        private $seqNodeId = null;
        private $treeNodeId = null;
        private $sequencingId = null;
        private $nocopy = false;
        private $nodelete = false;
        private $nomove = false;
        private $importId = null;
        private $seqXml = null;
        private $importSeqXml = null;
        private $rootLevel = false;
                
        protected $dom = null;

        function ilSCORM2004Item($a_treeid = null , $a_rootlevel = false)
        {
                //different handling for organization level
                $this->rootLevel = $a_rootlevel;
                
                if ($a_treeid != null)
                {
                        $this->treeNodeId = $a_treeid;
                        $this->loadItem();
                        $this->dom = new DOMDocument();
                        $this->initDom();
                }
        }
        
        // **********************
        // GETTER METHODS
        // **********************
        
        public function getSeqNodeId()
        {
                return $this->seqNodeId;
        }
        
        public function getTreeNodeId()
        {
                return $this->treeNodeId;
        }
        
        
        public function getSequencingId()
        {
                return $this->sequencingId;
        }
        
        public function getImportId()
        {
                return $this->importId;
        }
        public function getNocopy()
        {
                return $this->nocopy;
        }
        
        public function getNodelete()
        {
                return $this->nodelete;
        }
        
        public function getNomove()
        {
                return $this->nomove;
        }
        
        public function getSeqXml()
        {
                return $this->seqXml;
        }
        
        public function getRoolLevel()
        {
                return $this->rootLevel;
        }
                
        function getImportSeqXml()
        {
                return $this->importSeqXml;
        }
        
        // **********************
        // Setter METHODS
        // **********************

        function setImportSeqXml($a_val)
        {
                $this->importSeqXml = $a_val;
        }

        public function setSeqNodeId($a_seqnodeid)
        {
                $this->seqNodeId = $a_seqnodeid;
        }
        
        public function setTreeNodeId($a_tree_node)
        {
                $this->treeNodeId = $a_tree_node;
        }
        
        public function setSequencingId($a_seq_id)
        {
                $this->sequencingId = $a_seq_id;
        }
        
        public function setNocopy($a_nocopy)
        {
                $this->nocopy = $a_nocopy;
        }
        
        public function setNodelete($a_nodelete)
        {
                $this->nodelete = $a_nodelete ;
        }
        
        public function setNomove($a_nomove)
        {
                $this->nomove = $a_nomove;
        }
        
        public function setImportId($a_importid)
        {
                $this->importid = $a_importid;
        }
        
        public function setSeqXml($a_seqxml)
        {
                $this->seqXml = $a_seqxml;
        }
        
        public function setDom($a_dom)
        {
                $this->dom = $a_dom;
        }
        
        public function setRootLevel($a_rootlevel)
        {
                $this->rootLevel = $a_rootlevel;
        }
        
        public static function getAllowedActions($a_node_id)
        {
                global $ilDB,$ilLog;
                $query = "SELECT * FROM sahs_sc13_seq_item WHERE sahs_sc13_tree_node_id = ".
                        $ilDB->quote($a_node_id, "integer").
                        " AND rootlevel = ".$ilDB->quote(false, "integer");
                $obj_set = $ilDB->query($query);
                $obj_rec = $obj_set->fetchRow(DB_FETCHMODE_ASSOC);
                return array("copy"=>!$obj_rec['nocopy'],"move"=>!$obj_rec['nomove'],"delete"=>!$obj_rec['nodelete']);
        }
        
        function initDom()
        {
                if ($this->getSeqXml() != "")
                {
                        $this->dom->loadXML($this->getSeqXml());
                }
                else
                {
                        $element = $this->dom->createElement('sequencing');
                        $this->dom->appendChild($element);
                        $this->setSeqXml($this->dom->saveXML());
                }
        }
        
        
        public function exportAsXML($add_prefix = true)
        {
                // remove titles
                // @todo: the objectives (titles) text should be stored outside of
                // the sequencing information in the future
                $xpath_obj = new DOMXPath($this->dom);
                $obj_node_list = $xpath_obj->query('//objective | //primaryObjective');
                for ($i=0;$i<$obj_node_list->length;$i++) {
                        $obj_node_list->item($i)->removeAttribute("title");
                }
                $output = $this->dom->saveXML();
                
                $output = preg_replace('/<\?xml version="1.0"\?>/','',$output);
                if ($add_prefix)
                {
                        $output = preg_replace('/(<)([a-z]+|[A-Z]+)/','<imsss:$2',$output);
                        $output = preg_replace('/(<\/)([a-z]+|[A-Z]+)/','</imsss:$2',$output);
                }
                $output = preg_replace('/\n/','',$output);

                return $output; 
        }
        
        public function loadItem()
        {
                global $ilDB;
                $query = "SELECT * FROM sahs_sc13_seq_item WHERE (sahs_sc13_tree_node_id = ".$ilDB->quote($this->treeNodeId, "integer").
                        " AND rootlevel =".$ilDB->quote($this->rootLevel, "integer").")";
                $obj_set = $ilDB->query($query);
                $obj_rec = $ilDB->fetchAssoc($obj_set);
                $this->seqXml = $obj_rec['seqxml'];
                $this->importSeqXml = $obj_rec['importseqxml'];
                $this->importId = $obj_rec['importid'];
                $this->nocopy =  $obj_rec['nocopy'];
                $this->nomove = $obj_rec['nomove'];
                $this->nodelete = $obj_rec['nodelete'];
        }
        
        public function update()
        {
                $this->insert();
        }
        
        public function delete($a_insert_node = false)
        {
                global $ilDB;
                
                $query = "DELETE FROM sahs_sc13_seq_item"." WHERE (sahs_sc13_tree_node_id = ".$ilDB->quote($this->treeNodeId, "integer").
                                  " AND rootlevel=".$ilDB->quote($this->rootLevel, "integer").")";
                $obj_set = $ilDB->manipulate($query);   
        }
        
        public function insert($import = false)
        {
                global $ilDB;

                $ilDB->replace("sahs_sc13_seq_item",
                        array("sahs_sc13_tree_node_id" => array("integer", $this->treeNodeId),
                                "rootlevel" => array("integer", $this->rootLevel)),
                        array(
                                "importid" => array("text", $this->importId),
                                "seqnodeid" => array("integer", (int) $this->seqNodeId),
                                "sequencingid" => array("text", $this->sequencingId),
                                "nocopy" => array("integer", $this->nocopy),
                                "nodelete" => array("integer", $this->nodelete),
                                "nomove" => array("integer", $this->nomove),
                                "seqxml" => array("clob", $this->dom->saveXML()),
                                "importseqxml" => array("clob", $this->getImportSeqXml())
                                ));
                return true;
        }
        
}
?>