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<?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 - 2022 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 modify |
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* it under the terms of the GNU Affero General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (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 Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <https://www.gnu.org/licenses/>. |
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*/ |
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declare(strict_types=1); |
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namespace App\Repository; |
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use App\Entity\Base\AbstractStructuralDBElement; |
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use App\Helpers\Trees\StructuralDBElementIterator; |
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use App\Helpers\Trees\TreeViewNode; |
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use RecursiveIteratorIterator; |
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class StructuralDBElementRepository extends NamedDBElementRepository |
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{ |
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/** |
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* Finds all nodes without a parent node. They are our root nodes. |
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* |
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* @return AbstractStructuralDBElement[] |
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*/ |
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public function findRootNodes(): array |
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{ |
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return $this->findBy(['parent' => null], ['name' => 'ASC']); |
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} |
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/** |
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* Gets a tree of TreeViewNode elements. The root elements has $parent as parent. |
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* The treeview is generic, that means the href are null and ID values are set. |
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* |
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* @param AbstractStructuralDBElement|null $parent the parent the root elements should have |
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* |
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* @return TreeViewNode[] |
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*/ |
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public function getGenericNodeTree(?AbstractStructuralDBElement $parent = null): array |
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{ |
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$result = []; |
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$entities = $this->findBy(['parent' => $parent], ['name' => 'ASC']); |
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foreach ($entities as $entity) { |
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/** @var AbstractStructuralDBElement $entity */ |
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//Make a recursive call to find all children nodes |
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$children = $this->getGenericNodeTree($entity); |
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$node = new TreeViewNode($entity->getName(), null, $children); |
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//Set the ID of this entity to later be able to reconstruct the URL |
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$node->setId($entity->getID()); |
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$result[] = $node; |
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} |
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return $result; |
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} |
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/** |
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* Gets a flattened hierarchical tree. Useful for generating option lists. |
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* |
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* @param AbstractStructuralDBElement|null $parent This entity will be used as root element. Set to null, to use global root |
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* |
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* @return AbstractStructuralDBElement[] a flattened list containing the tree elements |
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*/ |
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public function toNodesList(?AbstractStructuralDBElement $parent = null): array |
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{ |
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$result = []; |
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$entities = $this->findBy(['parent' => $parent], ['name' => 'ASC']); |
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$elementIterator = new StructuralDBElementIterator($entities); |
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$recursiveIterator = new RecursiveIteratorIterator($elementIterator, RecursiveIteratorIterator::SELF_FIRST); |
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//$result = iterator_to_array($recursiveIterator); |
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//We can not use iterator_to_array here or we get only the parent elements |
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foreach ($recursiveIterator as $item) { |
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$result[] = $item; |
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} |
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return $result; |
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} |
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/** |
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* Creates a structure of AbsstractStructuralDBElements from a path separated by $separator, which splits the various levels. |
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* This function will try to use existing elements, if they are already in the database. If not, they will be created. |
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* An array of the created elements will be returned, with the last element being the deepest element. |
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* @param string $path |
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* @param string $separator |
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* @return AbstractStructuralDBElement[] |
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*/ |
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public function getNewEntityFromPath(string $path, string $separator = '->'): array |
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{ |
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$parent = null; |
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$result = []; |
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foreach (explode($separator, $path) as $name) { |
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$name = trim($name); |
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if ('' === $name) { |
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continue; |
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} |
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//See if we already have an element with this name and parent |
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$entity = $this->findOneBy(['name' => $name, 'parent' => $parent]); |
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if (null === $entity) { |
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$class = $this->getClassName(); |
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/** @var AbstractStructuralDBElement $entity */ |
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$entity = new $class; |
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$entity->setName($name); |
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$entity->setParent($parent); |
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} |
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$result[] = $entity; |
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$parent = $entity; |
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} |
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return $result; |
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} |
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} |
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Part-DB /
Part-DB-symfony
