* All rights reserved * * This script is part of the TYPO3 project. The TYPO3 project is * free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * The GNU General Public License can be found at * http://www.gnu.org/copyleft/gpl.html. * * This script is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * This copyright notice MUST APPEAR in all copies of the script! ***************************************************************/ /** * A mapper to map database tables configured in $TCA on domain objects. * * @package Extbase * @subpackage Persistence\Mapper * @version $ID:$ */ class Tx_Extbase_Persistence_Mapper_DataMapper implements t3lib_Singleton { /** * @var Tx_Extbase_Persistence_IdentityMap */ protected $identityMap; /** * @var Tx_Extbase_Persistence_QOM_QueryObjectModelFactory */ protected $QOMFactory; /** * A reference to the page select object providing methods to perform language and work space overlays * * @var t3lib_pageSelect **/ protected $pageSelectObject; /** * Cached data maps * * @var array **/ protected $dataMaps = array(); /** * @var Tx_Extbase_Persistence_QueryFactoryInterface */ protected $queryFactory; /** * The TYPO3 reference index object * * @var t3lib_refindex **/ protected $referenceIndex; /** * Constructs a new mapper * */ public function __construct() { $this->queryFactory = t3lib_div::makeInstance('Tx_Extbase_Persistence_QueryFactory'); } /** * Injects the identity map * * @param Tx_Extbase_Persistence_IdentityMap $identityMap * @return void */ public function injectIdentityMap(Tx_Extbase_Persistence_IdentityMap $identityMap) { $this->identityMap = $identityMap; } /** * Injects the persistence manager * * @param Tx_Extbase_Persistence_ManagerInterface $persistenceManager * @return void */ public function injectPersistenceManager(Tx_Extbase_Persistence_ManagerInterface $persistenceManager) { $this->QOMFactory = $persistenceManager->getBackend()->getQOMFactory(); } /** * Maps the (aggregate root) rows and registers them as reconstituted * with the session. * * @param Tx_Extbase_Persistence_RowIteratorInterface $rows * @return array */ public function map($className, Tx_Extbase_Persistence_RowIteratorInterface $rows) { $objects = array(); foreach ($rows as $row) { $objects[] = $this->mapSingleRow($className, $row); } return $objects; } /** * Maps a single node into the object it represents * * @param Tx_Extbase_Persistence_RowInterface $node * @return object */ protected function mapSingleRow($className, Tx_Extbase_Persistence_RowInterface $row) { if ($this->identityMap->hasUid($className, $row['uid'])) { $object = $this->identityMap->getObjectByUid($className, $row['uid']); } else { $object = $this->createEmptyObject($className); $this->thawProperties($object, $row); $this->identityMap->registerObject($object, $object->getUid()); $object->_memorizeCleanState(); } return $object; } /** * Creates a skeleton of the specified object * * @param string $className Name of the class to create a skeleton for * @return object The object skeleton */ protected function createEmptyObject($className) { // Note: The class_implements() function also invokes autoload to assure that the interfaces // and the class are loaded. Would end up with __PHP_Incomplete_Class without it. if (!in_array('Tx_Extbase_DomainObject_DomainObjectInterface', class_implements($className))) throw new Tx_Extbase_Object_Exception_CannotReconstituteObject('Cannot create empty instance of the class "' . $className . '" because it does not implement the Tx_Extbase_DomainObject_DomainObjectInterface.', 1234386924); $object = unserialize('O:' . strlen($className) . ':"' . $className . '":0:{};'); return $object; } /** * Sets the given properties on the object. * * @param Tx_Extbase_DomainObject_DomainObjectInterface $object The object to set properties on * @param Tx_Extbase_Persistence_RowInterface $row * @return void */ protected function thawProperties(Tx_Extbase_DomainObject_DomainObjectInterface $object, Tx_Extbase_Persistence_RowInterface $row) { $className = get_class($object); $dataMap = $this->getDataMap($className); $properties = $object->_getProperties(); $object->_setProperty('uid', $row['uid']); foreach ($properties as $propertyName => $propertyValue) { if (!$dataMap->isPersistableProperty($propertyName)) continue; $columnMap = $dataMap->getColumnMap($propertyName); $columnName = $columnMap->getColumnName(); $propertyValue = NULL; $propertyType = $columnMap->getPropertyType(); switch ($propertyType) { case Tx_Extbase_Persistence_PropertyType::STRING; case Tx_Extbase_Persistence_PropertyType::DATE; case Tx_Extbase_Persistence_PropertyType::LONG; case Tx_Extbase_Persistence_PropertyType::DOUBLE; case Tx_Extbase_Persistence_PropertyType::BOOLEAN; if (isset($row[$columnName])) { $rawPropertyValue = $row[$columnName]; $propertyValue = $dataMap->convertFieldValueToPropertyValue($propertyType, $rawPropertyValue); } break; case (Tx_Extbase_Persistence_PropertyType::REFERENCE): if (!is_null($row[$columnName])) { $propertyValue = $this->mapRelatedObjects($object, $propertyName, $row, $columnMap); } else { $propertyValue = NULL; } break; // FIXME we have an object to handle... -> exception default: // SK: We should throw an exception as this point as there was an undefined propertyType we can not handle. if (isset($row[$columnName])) { $property = $row[$columnName]; if (is_object($property)) { $propertyValue = $this->mapObject($property); // SK: THIS case can not happen I think. At least $this->mapObject() is not available. } else { // SK: This case does not make sense either. $this-mapSingleRow has a different signature $propertyValue = $this->mapSingleRow($className, $property); } } break; } $object->_setProperty($propertyName, $propertyValue); } } /** * Maps related objects to an ObjectStorage * * @param object $parentObject The parent object for the mapping result * @param string $propertyName The target property name for the mapping result * @param Tx_Extbase_Persistence_RowInterface $row The actual database row * @param int $loadingStrategy The loading strategy; one of Tx_Extbase_Persistence_Mapper_ColumnMap::STRATEGY_* * @return array|Tx_Extbase_Persistence_ObjectStorage|Tx_Extbase_Persistence_LazyLoadingProxy|another implementation of a loading strategy */ // FIXME There is a recursion problem with post1 -> post2 and post2 -> post1 protected function mapRelatedObjects(Tx_Extbase_DomainObject_AbstractEntity $parentObject, $propertyName, Tx_Extbase_Persistence_RowInterface $row, Tx_Extbase_Persistence_Mapper_ColumnMap $columnMap) { $dataMap = $this->getDataMap(get_class($parentObject)); $columnMap = $dataMap->getColumnMap($propertyName); $fieldValue = $row[$columnMap->getColumnName()]; if ($columnMap->getLoadingStrategy() === Tx_Extbase_Persistence_Mapper_ColumnMap::STRATEGY_PROXY) { // TODO Remove dependency to the loading strategy implementation $result = t3lib_div::makeInstance('Tx_Extbase_Persistence_LazyLoadingProxy', $parentObject, $propertyName, $fieldValue, $columnMap); } else { $result = $this->fetchRelatedObjects( $parentObject, $propertyName, $fieldValue, $columnMap); } return $result; } /** * Fetches a collection of objects related to a property of a parent object * * @param Tx_Extbase_DomainObject_AbstractEntity $parentObject The object instance this proxy is part of * @param string $propertyName The name of the proxied property in it's parent * @param mixed $fieldValue The raw field value. * @param Tx_Extbase_Persistence_Mapper_DataMap $dataMap The corresponding Data Map of the property */ public function fetchRelatedObjects(Tx_Extbase_DomainObject_AbstractEntity $parentObject, $propertyName, $fieldValue, Tx_Extbase_Persistence_Mapper_ColumnMap $columnMap) { $queryFactory = t3lib_div::makeInstance('Tx_Extbase_Persistence_QueryFactory'); if ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_ONE) { $query = $queryFactory->create($columnMap->getChildClassName()); // TODO: This is an ugly hack, just ignoring the storage page state from here. Actually, the query settings would have to be passed into the DataMapper, so we can respect // enableFields and storage page settings. $query->getQuerySettings()->setRespectStoragePage(FALSE); $result = current($query->matching($query->withUid((int)$fieldValue))->execute()); } elseif ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_MANY) { $objectStorage = new Tx_Extbase_Persistence_ObjectStorage(); $query = $queryFactory->create($columnMap->getChildClassName()); $parentKeyFieldName = $columnMap->getParentKeyFieldName(); if (isset($parentKeyFieldName)) { $objects = $query->matching($query->equals($columnMap->getParentKeyFieldName(), $parentObject->getUid()))->execute(); } else { // TODO Is it necessary to "normalize" and intval the list? $uids = t3lib_div::trimExplode(',', $fieldValue); $uidArray = array(); foreach ($uids as $uid) { $uidArray[] = (int)$uid; } $uids = implode(',', $uidArray); // FIXME Using statement() is only a preliminary solution $objects = $query->statement('SELECT * FROM ' . $columnMap->getChildTableName() . ' WHERE uid IN (' . $uids . ')')->execute(); } foreach ($objects as $object) { $objectStorage->attach($object); } $result = $objectStorage; } elseif ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_AND_BELONGS_TO_MANY) { $objectStorage = new Tx_Extbase_Persistence_ObjectStorage(); $relationTableName = $columnMap->getRelationTableName(); $left = $this->QOMFactory->selector(NULL, $relationTableName); $childClassName = $columnMap->getChildClassName(); $childTableName = $columnMap->getChildTableName(); $right = $this->QOMFactory->selector($childClassName, $childTableName); $joinCondition = $this->QOMFactory->equiJoinCondition($relationTableName, $columnMap->getChildKeyFieldName(), $childTableName, 'uid'); $source = $this->QOMFactory->join( $left, $right, Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_JOIN_TYPE_INNER, $joinCondition ); $query = $queryFactory->create($columnMap->getChildClassName()); $query->setSource($source); $objects = $query->matching($query->equals($columnMap->getParentKeyFieldName(), $parentObject->getUid()))->execute(); foreach ($objects as $object) { $objectStorage->attach($object); } $result = $objectStorage; } return $result; } /** * Delegates the call to the Data Map. * Returns TRUE if the property is persistable (configured in $TCA) * * @param string $className The property name * @param string $propertyName The property name * @return boolean TRUE if the property is persistable (configured in $TCA) */ public function isPersistableProperty($className, $propertyName) { $dataMap = $this->getDataMap($className); return $dataMap->isPersistableProperty($propertyName); } /** * Returns a data map for a given class name * * @return Tx_Extbase_Persistence_Mapper_DataMap The data map */ public function getDataMap($className) { if (is_string($className) && strlen($className) > 0) { if (empty($this->dataMaps[$className])) { // FIXME This is a costy for table name aliases -> implement a DataMapBuilder (knowing the aliases defined in $TCA) $mapping = array(); $extbaseSettings = Tx_Extbase_Dispatcher::getExtbaseFrameworkConfiguration(); if (isset($extbaseSettings['persistence']['classes'][$className]) && !empty($extbaseSettings['persistence']['classes'][$className]['mapping']['tableName'])) { $tableName = $extbaseSettings['persistence']['classes'][$className]['mapping']['tableName']; } else { foreach (class_parents($className) as $parentClassName) { if (isset($extbaseSettings['persistence']['classes'][$parentClassName]) && !empty($extbaseSettings['persistence']['classes'][$parentClassName]['mapping']['tableName'])) { $tableName = $extbaseSettings['persistence']['classes'][$parentClassName]['mapping']['tableName']; break; } // TODO throw Exception } } if (is_array($extbaseSettings['persistence']['classes'][$parentClassName]['mapping']['columns'])) { $mapping = $extbaseSettings['persistence']['classes'][$parentClassName]['mapping']['columns']; } $dataMap = new Tx_Extbase_Persistence_Mapper_DataMap($className, $tableName, $mapping); $this->dataMaps[$className] = $dataMap; } return $this->dataMaps[$className]; } else { return NULL; } } /** * Returns the selector (table) name for a given class name. * * @param string $className * @return string The selector name */ public function convertClassNameToTableName($className) { return $this->getDataMap($className)->getTableName(); } /** * Returns the column name for a given property name of the specified class. * * @param string $className * @param string $propertyName * @return string The column name */ public function convertPropertyNameToColumnName($propertyName, $className = '') { if (!empty($className)) { $dataMap = $this->getDataMap($className); if ($dataMap !== NULL) { $columnMap = $dataMap->getColumnMap($propertyName); if ($columnMap !== NULL) { return $columnMap->getColumnName(); } } } return Tx_Extbase_Utility_Plugin::convertCamelCaseToLowerCaseUnderscored($propertyName); } } ?>