class.ilItemGroupItems.php

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<?php

/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilItemGroupItems
{
        var $ilDB;
        var $tree;
        var $lng;

        var $item_group_id = 0;
        var $item_group_ref_id = 0;
        var $items = array();

        function ilItemGroupItems($a_item_group_ref_id = 0)
        {
                global $ilDB, $lng, $tree, $objDefinition;

                $this->db  = $ilDB;
                $this->lng = $lng;
                $this->tree = $tree;
                $this->obj_def = $objDefinition;

                $this->setItemGroupRefId((int) $a_item_group_ref_id);
                if ($this->getItemGroupRefId() > 0)
                {
                        $this->setItemGroupId((int) ilObject::_lookupObjId($a_item_group_ref_id));
                }

                if ($this->getItemGroupId() > 0)
                {
                        $this->read();
                }
        }

        function setItemGroupId($a_val)
        {
                $this->item_group_id = $a_val;
        }
        
        function getItemGroupId()
        {
                return $this->item_group_id;
        }
        
        function setItemGroupRefId($a_val)
        {
                $this->item_group_ref_id = $a_val;
        }
        
        function getItemGroupRefId()
        {
                return $this->item_group_ref_id;
        }
        
        function setItems($a_val)
        {
                $this->items = $a_val;
        }
        
        function getItems()
        {
                return $this->items;
        }
        
        public function addItem($a_item_ref_id)
        {
                if (!in_array($a_item_ref_id, $this->items))
                {
                        $this->items[] = (int) $a_item_ref_id;
                }
        }
        
        function delete()
        {
                $query = "DELETE FROM item_group_item ".
                        "WHERE item_group_id = ".$this->db->quote($this->getItemGroupId(), 'integer');
                $this->db->manipulate($query);
        }

        function update()
        {
                $this->delete();
                
                foreach($this->items as $item)
                {
                        $query = "INSERT INTO item_group_item (item_group_id,item_ref_id) ".
                                "VALUES( ".
                                $this->db->quote($this->getItemGroupId() ,'integer').", ".
                                $this->db->quote($item ,'integer')." ".
                                ")";
                        $this->db->manipulate($query);
                }
        }

        public function read()
        {
                $this->items = array();
                $set = $this->db->query("SELECT * FROM item_group_item ".
                        " WHERE item_group_id = ".$this->db->quote($this->getItemGroupId(), "integer")
                        );
                while ($rec = $this->db->fetchAssoc($set))
                {
                        $this->items[] = $rec["item_ref_id"];
                }
        }

        function getAssignableItems()
        {
                global $objDefinition;
        
                if ($this->getItemGroupRefId() <= 0)
                {
                        return array();
                }
                
                $parent_node = $this->tree->getNodeData(
                        $this->tree->getParentId($this->getItemGroupRefId()));
                
                $materials = array();
                $nodes = $this->tree->getChilds($parent_node["child"]);

                include_once("./Modules/File/classes/class.ilObjFileAccess.php");
                foreach($nodes as $node)
                {
                        // filter side blocks and session, item groups and role folder
                        if ($node['child'] == $parent_node["child"] ||
                                $this->obj_def->isSideBlock($node['type']) ||
                                in_array($node['type'], array('sess', 'itgr', 'rolf', 'adm')))
                        {
                                continue;
                        }
                        
                        // filter hidden files
                        // see http://www.ilias.de/mantis/view.php?id=10269
                        if ($node['type'] == "file" &&
                                ilObjFileAccess::_isFileHidden($node['title']))
                        {
                                continue;
                        }
                                                
                        if ($objDefinition->isInactivePlugin($node['type']))
                        {
                                continue;
                        }

                        $materials[] = $node;
                }
                
                $materials = ilUtil::sortArray($materials, "title", "asc");
                
                return $materials;
        }

        
        function getValidItems()
        {
                $items = $this->getItems();
                $ass_items = $this->getAssignableItems();
                $valid_items = array();
                foreach ($ass_items as $aitem)
                {
                        if (in_array($aitem["ref_id"], $items))
                        {
                                $valid_items[] = $aitem["ref_id"];
                        }
                }
                return $valid_items;
        }

        public function cloneItems($a_source_id,$a_copy_id)
        {
                global $ilObjDataCache,$ilLog;
                
                $ilLog->write(__METHOD__.': Begin cloning item group materials ... -'.$a_source_id.'-');
                
                include_once('Services/CopyWizard/classes/class.ilCopyWizardOptions.php');
                $cwo = ilCopyWizardOptions::_getInstance($a_copy_id);
                $mappings = $cwo->getMappings();
                
                $new_items = array();
// check: is this a ref id!?
                $source_ig = new ilItemGroupItems($a_source_id);
                foreach($source_ig->getItems() as $item_ref_id)
                {
                        if(isset($mappings[$item_ref_id]) and $mappings[$item_ref_id])
                        {
                                $ilLog->write(__METHOD__.': Clone item group item nr. '.$item_ref_id);
                                $new_items[] = $mappings[$item_ref_id];
                        }
                        else
                        {
                                $ilLog->write(__METHOD__.': No mapping found for item group item nr. '.$item_ref_id);
                        }
                }
                $this->setItems($new_items);
                $this->update();
                $ilLog->write(__METHOD__.': Finished cloning item group items ...');
                return true;
        }
        
        function _getItemsOfContainer($a_ref_id)
        {
                global $ilDB,$tree;
                
                $itgr_nodes = $tree->getChildsByType($a_ref_id,'itgr');
                foreach ($itgr_nodes as $node)
                {
                        $itgr_ids[] = $node['obj_id'];
                }
                $query = "SELECT item_ref_id FROM item_group_item ".
                        "WHERE ".$ilDB->in('item_group_id', $itgr_ids,false,'integer');
                        

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $items[] = $row->item_ref_id;
                }
                return $items ? $items : array();
        }

}
?>