271 lines
9.8 KiB
PHP
271 lines
9.8 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\Internal\Hydration;
|
|
|
|
use PDO,
|
|
Doctrine\DBAL\Connection,
|
|
Doctrine\DBAL\Types\Type,
|
|
Doctrine\ORM\EntityManager;
|
|
|
|
/**
|
|
* Base class for all hydrators. A hydrator is a class that provides some form
|
|
* of transformation of an SQL result set into another structure.
|
|
*
|
|
* @since 2.0
|
|
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
|
|
* @author Roman Borschel <roman@code-factory.org>
|
|
*/
|
|
abstract class AbstractHydrator
|
|
{
|
|
/** @var ResultSetMapping The ResultSetMapping. */
|
|
protected $_rsm;
|
|
|
|
/** @var EntityManager The EntityManager instance. */
|
|
protected $_em;
|
|
|
|
/** @var AbstractPlatform The dbms Platform instance */
|
|
protected $_platform;
|
|
|
|
/** @var UnitOfWork The UnitOfWork of the associated EntityManager. */
|
|
protected $_uow;
|
|
|
|
/** @var array The cache used during row-by-row hydration. */
|
|
protected $_cache = array();
|
|
|
|
/** @var Statement The statement that provides the data to hydrate. */
|
|
protected $_stmt;
|
|
|
|
/** @var array The query hints. */
|
|
protected $_hints;
|
|
|
|
/**
|
|
* Initializes a new instance of a class derived from <tt>AbstractHydrator</tt>.
|
|
*
|
|
* @param Doctrine\ORM\EntityManager $em The EntityManager to use.
|
|
*/
|
|
public function __construct(EntityManager $em)
|
|
{
|
|
$this->_em = $em;
|
|
$this->_platform = $em->getConnection()->getDatabasePlatform();
|
|
$this->_uow = $em->getUnitOfWork();
|
|
}
|
|
|
|
/**
|
|
* Initiates a row-by-row hydration.
|
|
*
|
|
* @param object $stmt
|
|
* @param object $resultSetMapping
|
|
* @return IterableResult
|
|
*/
|
|
public function iterate($stmt, $resultSetMapping, array $hints = array())
|
|
{
|
|
$this->_stmt = $stmt;
|
|
$this->_rsm = $resultSetMapping;
|
|
$this->_hints = $hints;
|
|
$this->_prepare();
|
|
return new IterableResult($this);
|
|
}
|
|
|
|
/**
|
|
* Hydrates all rows returned by the passed statement instance at once.
|
|
*
|
|
* @param object $stmt
|
|
* @param object $resultSetMapping
|
|
* @return mixed
|
|
*/
|
|
public function hydrateAll($stmt, $resultSetMapping, array $hints = array())
|
|
{
|
|
$this->_stmt = $stmt;
|
|
$this->_rsm = $resultSetMapping;
|
|
$this->_hints = $hints;
|
|
$this->_prepare();
|
|
$result = $this->_hydrateAll();
|
|
$this->_cleanup();
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Hydrates a single row returned by the current statement instance during
|
|
* row-by-row hydration with {@link iterate()}.
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public function hydrateRow()
|
|
{
|
|
$row = $this->_stmt->fetch(PDO::FETCH_ASSOC);
|
|
if ( ! $row) {
|
|
$this->_cleanup();
|
|
return false;
|
|
}
|
|
$result = array();
|
|
$this->_hydrateRow($row, $this->_cache, $result);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Excutes one-time preparation tasks, once each time hydration is started
|
|
* through {@link hydrateAll} or {@link iterate()}.
|
|
*/
|
|
protected function _prepare()
|
|
{}
|
|
|
|
/**
|
|
* Excutes one-time cleanup tasks at the end of a hydration that was initiated
|
|
* through {@link hydrateAll} or {@link iterate()}.
|
|
*/
|
|
protected function _cleanup()
|
|
{
|
|
$this->_rsm = null;
|
|
$this->_stmt->closeCursor();
|
|
$this->_stmt = null;
|
|
}
|
|
|
|
/**
|
|
* Hydrates a single row from the current statement instance.
|
|
*
|
|
* Template method.
|
|
*
|
|
* @param array $data The row data.
|
|
* @param array $cache The cache to use.
|
|
* @param mixed $result The result to fill.
|
|
*/
|
|
protected function _hydrateRow(array $data, array &$cache, array &$result)
|
|
{
|
|
throw new HydrationException("_hydrateRow() not implemented by this hydrator.");
|
|
}
|
|
|
|
/**
|
|
* Hydrates all rows from the current statement instance at once.
|
|
*/
|
|
abstract protected function _hydrateAll();
|
|
|
|
/**
|
|
* Processes a row of the result set.
|
|
* Used for identity-based hydration (HYDRATE_OBJECT and HYDRATE_ARRAY).
|
|
* Puts the elements of a result row into a new array, grouped by the class
|
|
* they belong to. The column names in the result set are mapped to their
|
|
* field names during this procedure as well as any necessary conversions on
|
|
* the values applied.
|
|
*
|
|
* @return array An array with all the fields (name => value) of the data row,
|
|
* grouped by their component alias.
|
|
*/
|
|
protected function _gatherRowData(array $data, array &$cache, array &$id, array &$nonemptyComponents)
|
|
{
|
|
$rowData = array();
|
|
|
|
foreach ($data as $key => $value) {
|
|
// Parse each column name only once. Cache the results.
|
|
if ( ! isset($cache[$key])) {
|
|
if (isset($this->_rsm->scalarMappings[$key])) {
|
|
$cache[$key]['fieldName'] = $this->_rsm->scalarMappings[$key];
|
|
$cache[$key]['isScalar'] = true;
|
|
} else if (isset($this->_rsm->fieldMappings[$key])) {
|
|
$fieldName = $this->_rsm->fieldMappings[$key];
|
|
$classMetadata = $this->_em->getClassMetadata($this->_rsm->declaringClasses[$key]);
|
|
$cache[$key]['fieldName'] = $fieldName;
|
|
$cache[$key]['type'] = Type::getType($classMetadata->fieldMappings[$fieldName]['type']);
|
|
$cache[$key]['isIdentifier'] = $classMetadata->isIdentifier($fieldName);
|
|
$cache[$key]['dqlAlias'] = $this->_rsm->columnOwnerMap[$key];
|
|
} else {
|
|
// Meta column (has meaning in relational schema only, i.e. foreign keys or discriminator columns).
|
|
$cache[$key]['isMetaColumn'] = true;
|
|
$cache[$key]['fieldName'] = $this->_rsm->metaMappings[$key];
|
|
$cache[$key]['dqlAlias'] = $this->_rsm->columnOwnerMap[$key];
|
|
}
|
|
}
|
|
|
|
if (isset($cache[$key]['isScalar'])) {
|
|
$rowData['scalars'][$cache[$key]['fieldName']] = $value;
|
|
continue;
|
|
}
|
|
|
|
$dqlAlias = $cache[$key]['dqlAlias'];
|
|
|
|
if (isset($cache[$key]['isMetaColumn'])) {
|
|
$rowData[$dqlAlias][$cache[$key]['fieldName']] = $value;
|
|
continue;
|
|
}
|
|
|
|
if ($cache[$key]['isIdentifier']) {
|
|
$id[$dqlAlias] .= '|' . $value;
|
|
}
|
|
|
|
$rowData[$dqlAlias][$cache[$key]['fieldName']] = $cache[$key]['type']->convertToPHPValue($value, $this->_platform);
|
|
|
|
if ( ! isset($nonemptyComponents[$dqlAlias]) && $value !== null) {
|
|
$nonemptyComponents[$dqlAlias] = true;
|
|
}
|
|
}
|
|
|
|
return $rowData;
|
|
}
|
|
|
|
/**
|
|
* Processes a row of the result set.
|
|
* Used for HYDRATE_SCALAR. This is a variant of _gatherRowData() that
|
|
* simply converts column names to field names and properly converts the
|
|
* values according to their types. The resulting row has the same number
|
|
* of elements as before.
|
|
*
|
|
* @param array $data
|
|
* @param array $cache
|
|
* @return array The processed row.
|
|
*/
|
|
protected function _gatherScalarRowData(&$data, &$cache)
|
|
{
|
|
$rowData = array();
|
|
|
|
foreach ($data as $key => $value) {
|
|
// Parse each column name only once. Cache the results.
|
|
if ( ! isset($cache[$key])) {
|
|
if (isset($this->_rsm->scalarMappings[$key])) {
|
|
$cache[$key]['fieldName'] = $this->_rsm->scalarMappings[$key];
|
|
$cache[$key]['isScalar'] = true;
|
|
} else if (isset($this->_rsm->fieldMappings[$key])) {
|
|
$fieldName = $this->_rsm->fieldMappings[$key];
|
|
$classMetadata = $this->_em->getClassMetadata($this->_rsm->declaringClasses[$key]);
|
|
$cache[$key]['fieldName'] = $fieldName;
|
|
$cache[$key]['type'] = Type::getType($classMetadata->fieldMappings[$fieldName]['type']);
|
|
$cache[$key]['dqlAlias'] = $this->_rsm->columnOwnerMap[$key];
|
|
} else {
|
|
// Meta column (has meaning in relational schema only, i.e. foreign keys or discriminator columns).
|
|
$cache[$key]['isMetaColumn'] = true;
|
|
$cache[$key]['fieldName'] = $this->_rsm->metaMappings[$key];
|
|
$cache[$key]['dqlAlias'] = $this->_rsm->columnOwnerMap[$key];
|
|
}
|
|
}
|
|
|
|
$fieldName = $cache[$key]['fieldName'];
|
|
|
|
if (isset($cache[$key]['isScalar'])) {
|
|
$rowData[$fieldName] = $value;
|
|
} else if (isset($cache[$key]['isMetaColumn'])) {
|
|
$rowData[$cache[$key]['dqlAlias'] . '_' . $fieldName] = $value;
|
|
} else {
|
|
$rowData[$cache[$key]['dqlAlias'] . '_' . $fieldName] = $cache[$key]['type']
|
|
->convertToPHPValue($value, $this->_platform);
|
|
}
|
|
}
|
|
|
|
return $rowData;
|
|
}
|
|
}
|