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Improved organisation of Services

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Jan Böhmer 2022-12-18 17:28:42 +01:00
parent c3308aaf24
commit a4eae19a1f
56 changed files with 100 additions and 97 deletions
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92
src/Services/StructuralElementRecursionHelper.php
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@ -1,92 +0,0 @@
<?php
/**
* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
*
* Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace App\Services;
use App\Entity\Base\AbstractStructuralDBElement;
use Doctrine\ORM\EntityManagerInterface;
class StructuralElementRecursionHelper
{
protected EntityManagerInterface $em;
public function __construct(EntityManagerInterface $em)
{
$this->em = $em;
}
/**
* Executes an function (callable) recursivly for $element and every of its children.
*
* @param AbstractStructuralDBElement $element The element on which the func should be executed
* @param callable $func The function which should be executed for each element.
* $func has the signature function(StructuralDBElement $element) : void
* @param int $max_depth The maximum depth for which should be recursivly called. So if this is set to 5, after the
* 5th level the execution is stopped.
* @param bool $call_from_bottom If set to true the bottom elements (elements with high level) will be called first.
* Set to false if you want to call the top elements first.
*/
public function execute(AbstractStructuralDBElement $element, callable $func, int $max_depth = -1, bool $call_from_bottom = true): void
{
//Cancel if we reached our maximal allowed level. Must be zero because -1 is infinity levels
if (0 === $max_depth) {
return;
}
//Get children of the current class:
$children = $element->getChildren();
//If we should call from top we execute the func here.
if (!$call_from_bottom) {
$func($element);
}
foreach ($children as $child) {
$this->execute($child, $func, $max_depth - 1);
}
//Otherwise we call it here
if ($call_from_bottom) {
$func($element);
}
}
/**
* Deletes the $element and all its subelements recursivly.
*
* @param AbstractStructuralDBElement $element the element which should be deleted
* @param bool $flush When set to true the changes will also be flushed to DB. Set to false if you want to flush
* later.
*/
public function delete(AbstractStructuralDBElement $element, bool $flush = true): void
{
$em = $this->em;
$this->execute($element, static function (AbstractStructuralDBElement $element) use ($em): void {
$em->remove($element);
});
if ($flush) {
$em->flush();
}
}
}