class.ilSkillTreeNodeFactory.php

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<?php

class ilSkillTreeNodeFactory
{
    public static function getInstance(int $a_id = 0): ilSkillTreeNode
    {
        global $DIC;

        $ilDB = $DIC->database();

        $query = "SELECT * FROM skl_tree_node WHERE obj_id = " .
            $ilDB->quote($a_id, "integer");
        $obj_set = $ilDB->query($query);
        $obj_rec = $ilDB->fetchAssoc($obj_set);
        $obj = null;

        switch ($obj_rec["type"]) {
            case "skll":
                $obj = new ilBasicSkill();
                $obj->setId($obj_rec["obj_id"]);
                $obj->setDataRecord($obj_rec);
                $obj->read();
                break;

            case "scat":
                $obj = new ilSkillCategory();
                $obj->setId($obj_rec["obj_id"]);
                $obj->setDataRecord($obj_rec);
                $obj->read();
                break;

            case "sktp":
                $obj = new ilBasicSkillTemplate();
                $obj->setId($obj_rec["obj_id"]);
                $obj->setDataRecord($obj_rec);
                $obj->read();
                break;

            case "sctp":
                $obj = new ilSkillTemplateCategory();
                $obj->setId($obj_rec["obj_id"]);
                $obj->setDataRecord($obj_rec);
                $obj->read();
                break;

            case "skrt":
                $obj = new ilSkillRoot();
                $obj->setId($obj_rec["obj_id"]);
                $obj->setDataRecord($obj_rec);
                $obj->read();
                break;

            case "sktr":
                $obj = new ilSkillTemplateReference();
                $obj->setId($obj_rec["obj_id"]);
                $obj->setDataRecord($obj_rec);
                $obj->read();
                break;
        }
        return $obj;
    }
}