mirror of
https://github.com/Part-DB/Part-DB-server.git
synced 2026-02-09 02:49:35 +00:00
e557bdedd5
We now use the same the same style as the symfony project, and it allows us to simply fix the style by executing php_cs_fixer fix in the project root.
91 lines
3.4 KiB
PHP
91 lines
3.4 KiB
PHP
<?php
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/**
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
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*
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* Copyright (C) 2019 Jan Böhmer (https://github.com/jbtronics)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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namespace App\Services;
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use App\Entity\Base\StructuralDBElement;
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use Doctrine\ORM\EntityManagerInterface;
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class StructuralElementRecursionHelper
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{
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protected $em;
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public function __construct(EntityManagerInterface $em)
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{
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$this->em = $em;
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}
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/**
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* Executes an function (callable) recursivly for $element and every of its children.
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*
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* @param StructuralDBElement $element The element on which the func should be executed
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* @param callable $func The function which should be executed for each element.
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* $func has the signature function(StructuralDBElement $element) : void
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* @param int $max_depth The maximum depth for which should be recursivly called. So if this is set to 5, after the
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* 5th level the execution is stopped.
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* @param bool $call_from_bottom If set to true the bottom elements (elements with high level) will be called first.
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* Set to false if you want to call the top elements first.
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*/
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public function execute(StructuralDBElement $element, callable $func, int $max_depth = -1, $call_from_bottom = true): void
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{
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//Cancel if we reached our maximal allowed level. Must be zero because -1 is infinity levels
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if (0 == $max_depth) {
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return;
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}
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//Get children of the current class:
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$children = $element->getChildren();
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//If we should call from top we execute the func here.
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if (!$call_from_bottom) {
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$func($element);
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}
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foreach ($children as $child) {
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$this->execute($child, $func, $max_depth - 1);
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}
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//Otherwise we call it here
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if ($call_from_bottom) {
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$func($element);
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}
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}
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/**
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* Deletes the $element and all its subelements recursivly.
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*
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* @param StructuralDBElement $element The element which should be deleted.
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* @param bool $flush When set to true the changes will also be flushed to DB. Set to false if you want to flush
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* later.
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*/
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public function delete(StructuralDBElement $element, bool $flush = true): void
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{
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$em = $this->em;
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$this->execute($element, static function (StructuralDBElement $element) use ($em) {
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$em->remove($element);
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});
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if ($flush) {
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$em->flush();
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}
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}
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}
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