class.ilSoapLMStructureReader.php

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<?php
class ilSoapLMStructureReader extends ilSoapStructureReader
{
    public function _parseStructure(): void
    {
        $obect = $this->object;
 
        $ctree = $obect->getLMTree();
 
        $nodes = $ctree->getSubTree($ctree->getNodeData($ctree->getRootId()));
 
        $currentParentStructureObject = $this->structureObject;
        $currentParent = 1;
 
        $parents = [];
        $parents[$currentParent] = $currentParentStructureObject;
 
        $lastStructureObject = null;
        $lastNode = null;
        foreach ($nodes as $node) {
            // only pages and chapters
            if ($node["type"] === "st" || $node["type"] === "pg") {
                // parent has changed, to build a tree
                if ((int) $currentParent !== (int) $node["parent"]) {
                    // did we passed this parent before?
 
                    if (array_key_exists($node["parent"], $parents)) {
                        $currentParentStructureObject = $parents[$node["parent"]];
                    } elseif ($lastNode["type"] !== "pg") {
                        // no, we did not, so use the last inserted structure as new parent
                        $parents[$lastNode["child"]] = $lastStructureObject;
                        $currentParentStructureObject = $lastStructureObject;
                    }
                    $currentParent = $lastNode["child"];
                }
 
                $lastNode = $node;
 
                $lastStructureObject = ilSoapStructureObjectFactory::getInstance(
                    $node["obj_id"],
                    $node["type"],
                    $node["title"],
                    $node["description"],
                    $this->getObject()->getRefId()
                );
 
                $currentParentStructureObject->addStructureObject($lastStructureObject);
            }
        }
    }
}