225 lines
8.7 KiB
PHP
225 lines
8.7 KiB
PHP
<?php
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/*
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* $Id$
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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 LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Internal\Hydration;
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use \PDO;
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/**
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* Description of ArrayHydrator
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*
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* @author robo
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*/
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class ArrayHydrator extends AbstractHydrator
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{
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private $_rootAlias;
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private $_rootEntityName;
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private $_isSimpleQuery = false;
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private $_identifierMap = array();
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private $_resultPointers = array();
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private $_idTemplate = array();
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private $_resultCounter = 0;
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/** @override */
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protected function _prepare($parserResult)
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{
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parent::_prepare($parserResult);
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$this->_rootAlias = $parserResult->getDefaultQueryComponentAlias();
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$this->_rootEntityName = $this->_queryComponents[$this->_rootAlias]['metadata']->getClassName();
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$this->_isSimpleQuery = count($this->_queryComponents) <= 1;
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$this->_identifierMap = array();
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$this->_resultPointers = array();
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$this->_idTemplate = array();
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$this->_resultCounter = 0;
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foreach ($this->_queryComponents as $dqlAlias => $component) {
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$this->_identifierMap[$dqlAlias] = array();
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$this->_resultPointers[$dqlAlias] = array();
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$this->_idTemplate[$dqlAlias] = '';
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}
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}
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/** @override */
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protected function _hydrateAll()
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{
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$s = microtime(true);
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$result = array();
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$cache = array();
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while ($data = $this->_stmt->fetch(PDO::FETCH_ASSOC)) {
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$this->_hydrateRow($data, $cache, $result);
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}
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$e = microtime(true);
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echo 'Hydration took: ' . ($e - $s) . PHP_EOL;
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return $result;
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}
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/** @override */
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protected function _hydrateRow(array &$data, array &$cache, &$result)
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{
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// 1) Initialize
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$id = $this->_idTemplate; // initialize the id-memory
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$nonemptyComponents = array();
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$rowData = $this->_gatherRowData($data, $cache, $id, $nonemptyComponents);
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$rootAlias = $this->_rootAlias;
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// 2) Hydrate the data of the root entity from the current row
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// Check for an existing element
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$index = false;
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if ($this->_isSimpleQuery || ! isset($this->_identifierMap[$rootAlias][$id[$rootAlias]])) {
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$element = $rowData[$rootAlias];
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if ($field = $this->_getCustomIndexField($rootAlias)) {
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if ($this->_parserResult->isMixedQuery()) {
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$result[] = array($element[$field] => $element);
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++$this->_resultCounter;
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} else {
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$result[$element[$field]] = $element;
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}
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} else {
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if ($this->_parserResult->isMixedQuery()) {
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$result[] = array($element);
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++$this->_resultCounter;
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} else {
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$result[] = $element;
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}
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}
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end($result);
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$this->_identifierMap[$rootAlias][$id[$rootAlias]] = key($result);
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} else {
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$index = $this->_identifierMap[$rootAlias][$id[$rootAlias]];
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}
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$this->updateResultPointer($result, $index, $rootAlias, false);
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unset($rowData[$rootAlias]);
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// end of hydrate data of the root component for the current row
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// Extract scalar values. They're appended at the end.
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if (isset($rowData['scalars'])) {
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$scalars = $rowData['scalars'];
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unset($rowData['scalars']);
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}
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// 3) Now hydrate the rest of the data found in the current row, that
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// belongs to other (related) entities.
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foreach ($rowData as $dqlAlias => $data) {
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$index = false;
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$map = $this->_queryComponents[$dqlAlias];
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$parent = $map['parent'];
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$relationAlias = $map['relation']->getSourceFieldName();
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$path = $parent . '.' . $dqlAlias;
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// Get a reference to the right element in the result tree.
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// This element will get the associated element attached.
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if ($this->_parserResult->isMixedQuery() && $parent == $rootAlias) {
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$key = key(reset($this->_resultPointers));
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// TODO: Exception if $key === null ?
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$baseElement =& $this->_resultPointers[$parent][$key];
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} else if (isset($this->_resultPointers[$parent])) {
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$baseElement =& $this->_resultPointers[$parent];
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} else {
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unset($this->_resultPointers[$dqlAlias]); // Ticket #1228
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continue;
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}
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// Check the type of the relation (many or single-valued)
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if ( ! $map['relation']->isOneToOne()) {
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$oneToOne = false;
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if (isset($nonemptyComponents[$dqlAlias])) {
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if ( ! isset($baseElement[$relationAlias])) {
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$baseElement[$relationAlias] = array();
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}
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$indexExists = isset($this->_identifierMap[$path][$id[$parent]][$id[$dqlAlias]]);
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$index = $indexExists ? $this->_identifierMap[$path][$id[$parent]][$id[$dqlAlias]] : false;
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$indexIsValid = $index !== false ? isset($baseElement[$relationAlias][$index]) : false;
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if ( ! $indexExists || ! $indexIsValid) {
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$element = $data;
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if ($field = $this->_getCustomIndexField($dqlAlias)) {
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$baseElement[$relationAlias][$element[$field]] = $element;
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} else {
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$baseElement[$relationAlias][] = $element;
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}
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end($baseElement[$relationAlias]);
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$this->_identifierMap[$path][$id[$parent]][$id[$dqlAlias]] =
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key($baseElement[$relationAlias]);
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}
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} else if ( ! isset($baseElement[$relationAlias])) {
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$baseElement[$relationAlias] = array();
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}
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} else {
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$oneToOne = true;
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if ( ! isset($nonemptyComponents[$dqlAlias]) && ! isset($baseElement[$relationAlias])) {
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$baseElement[$relationAlias] = null;
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} else if ( ! isset($baseElement[$relationAlias])) {
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$baseElement[$relationAlias] = $data;
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}
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}
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$coll =& $baseElement[$relationAlias];
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if ($coll !== null) {
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$this->updateResultPointer($coll, $index, $dqlAlias, $oneToOne);
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}
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}
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// Append scalar values to mixed result sets
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if (isset($scalars)) {
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foreach ($scalars as $name => $value) {
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$result[$this->_resultCounter - 1][$name] = $value;
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}
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}
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}
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/**
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* Updates the result pointer for an Entity. The result pointers point to the
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* last seen instance of each Entity type. This is used for graph construction.
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*
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* @param array $coll The element.
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* @param boolean|integer $index Index of the element in the collection.
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* @param string $dqlAlias
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* @param boolean $oneToOne Whether it is a single-valued association or not.
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*/
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private function updateResultPointer(&$coll, $index, $dqlAlias, $oneToOne)
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{
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if ($coll === null) {
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unset($this->_resultPointers[$dqlAlias]); // Ticket #1228
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return;
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}
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if ($index !== false) {
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$this->_resultPointers[$dqlAlias] =& $coll[$index];
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return;
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} else {
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if ($coll) {
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if ($oneToOne) {
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$this->_resultPointers[$dqlAlias] =& $coll;
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} else {
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end($coll);
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$this->_resultPointers[$dqlAlias] =& $coll[key($coll)];
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}
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}
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}
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}
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/** {@inheritdoc} */
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protected function _getRowContainer()
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{
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return array();
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}
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} |