vendor/doctrine/orm/lib/Doctrine/ORM/Internal/CommitOrderCalculator.php

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

<?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\Internal;

/**
 * The CommitOrderCalculator is used by the UnitOfWork to sort out the
 * correct order in which changes to entities need to be persisted.
 *
 * @since 	2.0
 * @author 	Roman Borschel <roman@code-factory.org>
 * @author	Guilherme Blanco <guilhermeblanco@hotmail.com>
 */
class CommitOrderCalculator
{
    const NOT_VISITED = 1;
    const IN_PROGRESS = 2;
    const VISITED = 3;

    /**
     * @var array
     */
    private $_nodeStates = array();

    /**
     * The nodes to sort.
     *
     * @var array
     */
    private $_classes = array();

    /**
     * @var array
     */
    private $_relatedClasses = array();

    /**
     * @var array
     */
    private $_sorted = array();

    /**
     * Clears the current graph.
     *