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doctrine2/lib/Doctrine/ORM/Persisters/SingleTablePersister.php

114 lines
4.5 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 LGPL. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Persisters;
use Doctrine\ORM\Mapping\ClassMetadata;
/**
* Persister for entities that participate in a hierarchy mapped with the
* SINGLE_TABLE strategy.
*
* @author Roman Borschel <roman@code-factory.org>
* @since 2.0
* @link http://martinfowler.com/eaaCatalog/singleTableInheritance.html
*/
class SingleTablePersister extends AbstractEntityInheritancePersister
{
/** {@inheritdoc} */
protected function _getDiscriminatorColumnTableName()
{
return $this->_class->table['name'];
}
/** {@inheritdoc} */
protected function _getSelectColumnListSQL()
{
$columnList = parent::_getSelectColumnListSQL();
// Append discriminator column
$discrColumn = $this->_class->discriminatorColumn['name'];
$columnList .= ", $discrColumn";
$rootClass = $this->_em->getClassMetadata($this->_class->rootEntityName);
$tableAlias = $this->_getSQLTableAlias($rootClass->name);
$resultColumnName = $this->_platform->getSQLResultCasing($discrColumn);
$this->_resultColumnNames[$resultColumnName] = $discrColumn;
// Append subclass columns
foreach ($this->_class->subClasses as $subClassName) {
$subClass = $this->_em->getClassMetadata($subClassName);
// Regular columns
foreach ($subClass->fieldMappings as $fieldName => $mapping) {
if ( ! isset($mapping['inherited'])) {
$columnList .= ', ' . $this->_getSelectColumnSQL($fieldName, $subClass);
}
}
// Foreign key columns
foreach ($subClass->associationMappings as $assoc) {
if ($assoc->isOwningSide && $assoc->isOneToOne() && ! $assoc->inherited) {
foreach ($assoc->targetToSourceKeyColumns as $srcColumn) {
$columnAlias = $srcColumn . $this->_sqlAliasCounter++;
$columnList .= ', ' . $tableAlias . ".$srcColumn AS $columnAlias";
$resultColumnName = $this->_platform->getSQLResultCasing($columnAlias);
if ( ! isset($this->_resultColumnNames[$resultColumnName])) {
$this->_resultColumnNames[$resultColumnName] = $srcColumn;
}
}
}
}
}
return $columnList;
}
/** {@inheritdoc} */
protected function _getInsertColumnList()
{
$columns = parent::_getInsertColumnList();
// Add discriminator column to the INSERT SQL
$columns[] = $this->_class->discriminatorColumn['name'];
return $columns;
}
/** {@inheritdoc} */
protected function _getSQLTableAlias($className)
{
return parent::_getSQLTableAlias($this->_class->rootEntityName);
}
/** {@inheritdoc} */
protected function _getSelectConditionSQL(array $criteria, $assoc = null)
{
$conditionSql = parent::_getSelectConditionSQL($criteria, $assoc);
// Append discriminator condition
if ($conditionSql) $conditionSql .= ' AND ';
$values = array($this->_conn->quote($this->_class->discriminatorValue));
$discrValues = array_flip($this->_class->discriminatorMap);
foreach ($this->_class->subClasses as $subclassName) {
$values[] = $this->_conn->quote($discrValues[$subclassName]);
}
$conditionSql .= $this->_getSQLTableAlias($this->_class->name) . '.'
. $this->_class->discriminatorColumn['name']
. ' IN (' . implode(', ', $values) . ')';
return $conditionSql;
}
}