vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/AbstractEntityInheritancePersister.php

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<?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 Doctrine\ORM\Persisters;

use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\DBAL\Types\Type;

/**
 * Base class for entity persisters that implement a certain inheritance mapping strategy.
 * All these persisters are assumed to use a discriminator column to discriminate entity
 * types in the hierarchy.
 *
 * @author Roman Borschel <roman@code-factory.org>
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 * @since 2.0
 */
abstract class AbstractEntityInheritancePersister extends BasicEntityPersister
{
    /**
     * {@inheritdoc}
     */
    protected function prepareInsertData($entity)
    {
        $data = parent::prepareInsertData($entity);

        // Populate the discriminator column
        $discColumn = $this->class->discriminatorColumn;
        $this->columnTypes[$discColumn['name']] = $discColumn['type'];
        $data[$this->getDiscriminatorColumnTableName()][$discColumn['name']] = $this->class->discriminatorValue;

        return $data;
    }

    /**
     * Gets the name of the table that contains the discriminator column.
     *
     * @return string The table name.
     */
    abstract protected function getDiscriminatorColumnTableName();

    /**
     * {@inheritdoc}
     */