simen-backend-zf3mw/src/App/Hydrator/Strategy/AllowRemoveByReference.php
2016-07-31 20:47:25 +02:00

59 lines
2.3 KiB
PHP

<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace App\Hydrator\Strategy;
/**
* When this strategy is used for Collections, if the new collection does not contain elements that are present in
* the original collection, then this strategy remove elements from the original collection. For instance, if the
* collection initially contains elements A and B, and that the new collection contains elements B and C, then the
* final collection will contain elements B and C (while element A will be asked to be removed).
*
* This strategy is by reference, this means it won't use public API to add/remove elements to the collection
*
* @license MIT
* @link http://www.doctrine-project.org/
* @since 0.7.0
* @author Michael Gallego <mic.gallego@gmail.com>
*/
class AllowRemoveByReference extends AbstractCollectionStrategy
{
/**
* {@inheritDoc}
*/
public function hydrate($value)
{
$collection = $this->getCollectionFromObjectByReference();
$collectionArray = $collection->toArray();
$toAdd = array_udiff($value, $collectionArray, array($this, 'compareObjects'));
$toRemove = array_udiff($collectionArray, $value, array($this, 'compareObjects'));
foreach ($toAdd as $element) {
$collection->add($element);
}
foreach ($toRemove as $element) {
$collection->removeElement($element);
}
return $collection;
}
}