147 lines
5.4 KiB
PHP
147 lines
5.4 KiB
PHP
<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Persisters;
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use Doctrine\ORM\Mapping\ClassMetadata;
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/**
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* Persister for entities that participate in a hierarchy mapped with the
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* SINGLE_TABLE strategy.
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*
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* @author Roman Borschel <roman@code-factory.org>
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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* @author Alexander <iam.asm89@gmail.com>
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* @since 2.0
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* @link http://martinfowler.com/eaaCatalog/singleTableInheritance.html
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*/
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class SingleTablePersister extends AbstractEntityInheritancePersister
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{
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/** {@inheritdoc} */
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protected function _getDiscriminatorColumnTableName()
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{
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return $this->_class->getTableName();
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}
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/** {@inheritdoc} */
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protected function _getSelectColumnListSQL()
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{
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if ($this->_selectColumnListSql !== null) {
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return $this->_selectColumnListSql;
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}
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$columnList = parent::_getSelectColumnListSQL();
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$rootClass = $this->_em->getClassMetadata($this->_class->rootEntityName);
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$tableAlias = $this->_getSQLTableAlias($rootClass->name);
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// Append discriminator column
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$discrColumn = $this->_class->discriminatorColumn['name'];
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$columnList .= ', ' . $tableAlias . '.' . $discrColumn;
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$resultColumnName = $this->_platform->getSQLResultCasing($discrColumn);
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$this->_rsm->setDiscriminatorColumn('r', $resultColumnName);
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$this->_rsm->addMetaResult('r', $resultColumnName, $discrColumn);
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// Append subclass columns
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foreach ($this->_class->subClasses as $subClassName) {
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$subClass = $this->_em->getClassMetadata($subClassName);
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// Regular columns
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foreach ($subClass->fieldMappings as $fieldName => $mapping) {
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if ( ! isset($mapping['inherited'])) {
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$columnList .= ', ' . $this->_getSelectColumnSQL($fieldName, $subClass);
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}
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}
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// Foreign key columns
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foreach ($subClass->associationMappings as $assoc) {
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if ($assoc['isOwningSide'] && $assoc['type'] & ClassMetadata::TO_ONE && ! isset($assoc['inherited'])) {
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foreach ($assoc['targetToSourceKeyColumns'] as $srcColumn) {
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if ($columnList != '') $columnList .= ', ';
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$columnList .= $this->getSelectJoinColumnSQL(
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$tableAlias,
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$srcColumn,
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isset($assoc['inherited']) ? $assoc['inherited'] : $this->_class->name
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);
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}
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}
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}
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}
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$this->_selectColumnListSql = $columnList;
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return $this->_selectColumnListSql;
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}
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/** {@inheritdoc} */
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protected function _getInsertColumnList()
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{
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$columns = parent::_getInsertColumnList();
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// Add discriminator column to the INSERT SQL
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$columns[] = $this->_class->discriminatorColumn['name'];
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return $columns;
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}
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/** {@inheritdoc} */
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protected function _getSQLTableAlias($className, $assocName = '')
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{
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return parent::_getSQLTableAlias($this->_class->rootEntityName, $assocName);
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}
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/** {@inheritdoc} */
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protected function _getSelectConditionSQL(array $criteria, $assoc = null)
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{
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$conditionSql = parent::_getSelectConditionSQL($criteria, $assoc);
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// Append discriminator condition
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if ($conditionSql) $conditionSql .= ' AND ';
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$values = array();
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if ($this->_class->discriminatorValue !== null) { // discriminators can be 0
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$values[] = $this->_conn->quote($this->_class->discriminatorValue);
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}
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$discrValues = array_flip($this->_class->discriminatorMap);
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foreach ($this->_class->subClasses as $subclassName) {
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$values[] = $this->_conn->quote($discrValues[$subclassName]);
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}
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$conditionSql .= $this->_getSQLTableAlias($this->_class->name) . '.' . $this->_class->discriminatorColumn['name']
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. ' IN (' . implode(', ', $values) . ')';
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return $conditionSql;
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}
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/** {@inheritdoc} */
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protected function generateFilterConditionSQL(ClassMetadata $targetEntity, $targetTableAlias)
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{
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// Ensure that the filters are applied to the root entity of the inheritance tree
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$targetEntity = $this->_em->getClassMetadata($targetEntity->rootEntityName);
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// we dont care about the $targetTableAlias, in a STI there is only one table.
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return parent::generateFilterConditionSQL($targetEntity, $targetTableAlias);
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}
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}
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