class.ilSkillTree.php

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<?php

/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/Tree/classes/class.ilTree.php");

class ilSkillTree extends ilTree
{
        function __construct()
        {
                parent::__construct(1); // only one skill tree, with ID 1
                $this->setTreeTablePK("skl_tree_id");
                $this->setTableNames('skl_tree', 'skl_tree_node');
        }

        function getSkillTreePath($a_base_skill_id, $a_tref_id = 0)
        {
                if ($a_tref_id > 0)
                {
                        include_once("./Services/Skill/classes/class.ilSkillTemplateReference.php");
                        $path = $this->getPathFull($a_tref_id);
                        $sub_path = $this->getPathFull($a_base_skill_id);
                        if (is_array($path))
                        {
                                foreach ($path as $k => $v)
                                {
                                        if ($v["child"] != $a_tref_id)
                                        {
                                                $path[$k]["skill_id"] = $v["child"];
                                                $path[$k]["tref_id"] = 0;
                                        }
                                        else
                                        {
                                                $path[$k]["skill_id"] = ilSkillTemplateReference::_lookupTemplateId($a_tref_id);
                                                $path[$k]["tref_id"] = $a_tref_id;
                                        }
                                }
                        }
                        $found = false;
                        if (is_array($sub_path))
                        {
                                foreach ($sub_path as $s)
                                {
                                        if ($found)
                                        {
                                                $s["skill_id"] = $s["child"];
                                                $s["tref_id"] = $a_tref_id;
                                                $path[] = $s;
                                        }
                                        if ($s["child"] == ilSkillTemplateReference::_lookupTemplateId($a_tref_id))
                                        {
                                                $found = true;
                                        }
                                }
                        }
                }
                else
                {
                        $path = $this->getPathFull($a_base_skill_id);
                        if (is_array($path))
                        {
                                foreach ($path as $k => $v)
                                {
                                        $path[$k]["skill_id"] = $v["child"];
                                        $path[$k]["tref_id"] = 0;
                                }
                        }
                }

                if (is_array($path))
                {
                        return $path;
                }
                return array();
        }

        function getSkillTreePathAsString($a_base_skill_id, $a_tref_id = 0)
        {
                $path = $this->getSkillTreePath($a_base_skill_id, $a_tref_id);
                $str = "";
                $sep = "";
                foreach ($path as $p)
                {
                        if ($p["type"] != "skrt" && $p["child"] != $a_base_skill_id)
                        {
                                $str.= $sep.$p["title"];
                                $sep = " > ";
                        }
                }
                return $str;
        }

        function getTopParentNodeId($a_node_id)
        {
                $path = $this->getPathId($a_node_id);
                return (int) $path[1];
        }


}

?>