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diff --git a/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/AbstractEntityInheritancePersister.php b/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,
+    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 $data;
+    }
+
+    /**
+     * Gets the name of the table that contains the discriminator column.
+     *
+     * @return string The table name.
+     */
+    abstract protected function _getDiscriminatorColumnTableName();
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function _getSelectColumnSQL($field, ClassMetadata $class, $alias = 'r')
+    {
+        $columnName = $class->columnNames[$field];
+        $sql = $this->_getSQLTableAlias($class->name, $alias == 'r' ? '' : $alias) . '.' . $this->quoteStrategy->getColumnName($field, $class, $this->_platform);
+        $columnAlias = $this->getSQLColumnAlias($columnName);
+        $this->_rsm->addFieldResult($alias, $columnAlias, $field, $class->name);
+
+        if (isset($class->fieldMappings[$field]['requireSQLConversion'])) {
+            $type = Type::getType($class->getTypeOfField($field));
+            $sql = $type->convertToPHPValueSQL($sql, $this->_platform);
+        }
+
+        return $sql . ' AS ' . $columnAlias;
+    }
+
+    protected function getSelectJoinColumnSQL($tableAlias, $joinColumnName, $className)
+    {
+        $columnAlias = $this->getSQLColumnAlias($joinColumnName);
+        $this->_rsm->addMetaResult('r', $columnAlias, $joinColumnName);
+
+        return $tableAlias . '.' . $joinColumnName . ' AS ' . $columnAlias;
+    }
+}