61 lines
2.0 KiB
PHP
61 lines
2.0 KiB
PHP
<?php namespace App\Models\Foundation\Main;
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/**
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* Copyright 2018 OpenStack Foundation
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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use Doctrine\Common\Collections\Criteria;
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use Doctrine\Common\Collections\Selectable;
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use models\exceptions\ValidationException;
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/**
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* Trait OrderableChilds
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* @package App\Models\Foundation\Main
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*/
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trait OrderableChilds
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{
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/**
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* @param Selectable $collection
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* @param IOrderable $element
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* @param $new_order
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* @throws ValidationException
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*/
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private static function recalculateOrderFor(Selectable $collection, IOrderable $element, $new_order){
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$criteria = Criteria::create();
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$criteria->orderBy(['order'=> 'ASC']);
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$elements = $collection->matching($criteria)->toArray();
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$elements = array_slice($elements,0, count($elements), false);
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$max_order = count($elements);
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$former_order = 1;
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foreach ($elements as $e){
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if($e->getId() == $element->getId()) break;
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$former_order++;
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}
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if($new_order > $max_order)
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throw new ValidationException(sprintf("max order is %s", $max_order));
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unset($elements[$former_order - 1]);
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$elements = array_merge
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(
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array_slice($elements, 0, $new_order -1 , true) ,
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[$element] ,
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array_slice($elements, $new_order -1 , count($elements), true)
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);
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$order = 1;
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foreach($elements as $e){
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$e->setOrder($order);
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$order++;
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}
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}
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} |