typo3/sysext/extbase/Classes/Persistence/Mapper/DataMapper.php

   1 <?php
   2 /***************************************************************
   3  *  Copyright notice
   4  *
   5  *  (c) 2009 Jochen Rau <jochen.rau@typoplanet.de>
   6  *  All rights reserved
   7  *
   8  *  This script is part of the TYPO3 project. The TYPO3 project is
   9  *  free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  The GNU General Public License can be found at
  15  *  http://www.gnu.org/copyleft/gpl.html.
  16  *
  17  *  This script is distributed in the hope that it will be useful,
  18  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *  GNU General Public License for more details.
  21  *
  22  *  This copyright notice MUST APPEAR in all copies of the script!
  23  ***************************************************************/
  24
  25 /**
  26  * A mapper to map database tables configured in $TCA on domain objects.
  27  *
  28  * @package Extbase
  29  * @subpackage Persistence\Mapper
  30  * @version $ID:$
  31  */
  32 class Tx_Extbase_Persistence_Mapper_DataMapper implements t3lib_Singleton {
  33
  34         /**
  35          * @var Tx_Extbase_Persistence_IdentityMap
  36          */
  37         protected $identityMap;
  38
  39         /**
  40          * @var Tx_Extbase_Reflection_Service
  41          */
  42         protected $reflectionService;
  43
  44         /**
  45          * @var Tx_Extbase_Persistence_QOM_QueryObjectModelFactory
  46          */
  47         protected $qomFactory;
  48
  49         /**
  50          * @var Tx_Extbase_Persistence_Session
  51          */
  52         protected $persistenceSession;
  53
  54         /**
  55          * A reference to the page select object providing methods to perform language and work space overlays
  56          *
  57          * @var t3lib_pageSelect
  58          **/
  59         protected $pageSelectObject;
  60
  61         /**
  62          * Cached data maps
  63          *
  64          * @var array
  65          **/
  66         protected $dataMaps = array();
  67
  68         /**
  69          * @var Tx_Extbase_Persistence_Mapper_DataMapFactory
  70          */
  71         protected $dataMapFactory;
  72
  73         /**
  74          * @var Tx_Extbase_Persistence_QueryFactoryInterface
  75          */
  76         protected $queryFactory;
  77
  78         /**
  79          * The TYPO3 reference index object
  80          *
  81          * @var t3lib_refindex
  82          **/
  83         protected $referenceIndex;
  84
  85         /**
  86          * @var Tx_Extbase_Object_ObjectManagerInterface
  87          */
  88         protected $objectManager;
  89
  90         /**
  91          * Injects the identity map
  92          *
  93          * @param Tx_Extbase_Persistence_IdentityMap $identityMap
  94          * @return void
  95          */
  96         public function injectIdentityMap(Tx_Extbase_Persistence_IdentityMap $identityMap) {
  97                 $this->identityMap = $identityMap;
  98         }
  99
 100         /**
 101          * Injects the persistence session
 102          *
 103          * @param Tx_Extbase_Persistence_Session $persistenceSession
 104          * @return void
 105          */
 106         public function injectSession(Tx_Extbase_Persistence_Session $persistenceSession) {
 107                 $this->persistenceSession = $persistenceSession;
 108         }
 109
 110         /**
 111          * Injects the Reflection Service
 112          *
 113          * @param Tx_Extbase_Reflection_Service
 114          * @return void
 115          */
 116         public function injectReflectionService(Tx_Extbase_Reflection_Service $reflectionService) {
 117                 $this->reflectionService = $reflectionService;
 118         }
 119
 120         /**
 121          * Injects the DataMap Factory
 122          *
 123          * @param Tx_Extbase_Persistence_Mapper_DataMapFactory
 124          * @return void
 125          */
 126         public function injectDataMapFactory(Tx_Extbase_Persistence_Mapper_DataMapFactory $dataMapFactory) {
 127                 $this->dataMapFactory = $dataMapFactory;
 128         }
 129
 130         /**
 131          * Injects the Query Factory
 132          *
 133          * @param Tx_Extbase_Persistence_QueryFactoryInterface $queryFactory
 134          */
 135         public function injectQueryFactory(Tx_Extbase_Persistence_QueryFactoryInterface $queryFactory) {
 136                 $this->queryFactory = $queryFactory;
 137         }
 138
 139         /**
 140          * Sets the query object model factory
 141          *
 142          * @param Tx_Extbase_Persistence_QOM_QueryObjectModelFactory $qomFactory
 143          * @return void
 144          */
 145         public function injectQomFactory(Tx_Extbase_Persistence_QOM_QueryObjectModelFactory $qomFactory) {
 146                 $this->qomFactory = $qomFactory;
 147         }
 148
 149         /**
 150          * @param Tx_Extbase_Object_ObjectManagerInterface $objectManager
 151          * @return void
 152          */
 153         public function injectObjectManager(Tx_Extbase_Object_ObjectManagerInterface $objectManager) {
 154                 $this->objectManager = $objectManager;
 155         }
 156
 157         /**
 158          * Maps the given rows on objects
 159          *
 160          * @param string $className The name of the class
 161          * @param array $rows An array of arrays with field_name => value pairs
 162          * @return array An array of objects of the given class
 163          */
 164         public function map($className, array $rows) {
 165                 $objects = array();
 166                 foreach ($rows as $row) {
 167                         $objects[] = $this->mapSingleRow($this->getTargetType($className, $row), $row);
 168                 }
 169                 return $objects;
 170         }
 171
 172         /**
 173          * Returns the target type for the given row.
 174          *
 175          * @param string $className The name of the class
 176          * @param array $row A single array with field_name => value pairs
 177          * @return string The target type (a class name)
 178          */
 179         public function getTargetType($className, array $row) {
 180                 $dataMap = $this->getDataMap($className);
 181                 $targetType = $className;
 182                 if ($dataMap->getRecordTypeColumnName() !== NULL) {
 183                         foreach ($dataMap->getSubclasses() as $subclassName) {
 184                                 $recordSubtype = $this->getDataMap($subclassName)->getRecordType();
 185                                 if ($row[$dataMap->getRecordTypeColumnName()] === $recordSubtype) {
 186                                         $targetType =  $subclassName;
 187                                         break;
 188                                 }
 189                         }
 190                 }
 191                 return $targetType;
 192         }
 193
 194         /**
 195          * Maps a single row on an object of the given class
 196          *
 197          * @param string $className The name of the target class
 198          * @param array $row A single array with field_name => value pairs
 199          * @return object An object of the given class
 200          */
 201         protected function mapSingleRow($className, array $row) {
 202                 if ($this->identityMap->hasIdentifier($row['uid'], $className)) {
 203                         $object = $this->identityMap->getObjectByIdentifier($row['uid'], $className);
 204                 } else {
 205                         $object = $this->createEmptyObject($className);
 206                         $this->identityMap->registerObject($object, $row['uid']);
 207                         $this->thawProperties($object, $row);
 208                         $object->_memorizeCleanState();
 209                         $this->persistenceSession->registerReconstitutedObject($object);
 210                 }
 211                 return $object;
 212         }
 213
 214         /**
 215          * Creates a skeleton of the specified object
 216          *
 217          * @param string $className Name of the class to create a skeleton for
 218          * @return object The object skeleton
 219          */
 220         protected function createEmptyObject($className) {
 221                 // Note: The class_implements() function also invokes autoload to assure that the interfaces
 222                 // and the class are loaded. Would end up with __PHP_Incomplete_Class without it.
 223                 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);
 224                 $object = unserialize('O:' . strlen($className) . ':"' . $className . '":0:{};');
 225                 return $object;
 226         }
 227
 228         /**
 229          * Sets the given properties on the object.
 230          *
 231          * @param Tx_Extbase_DomainObject_DomainObjectInterface $object The object to set properties on
 232          * @param array $row
 233          * @return void
 234          */
 235         protected function thawProperties(Tx_Extbase_DomainObject_DomainObjectInterface $object, array $row) {
 236                 $className = get_class($object);
 237                 $dataMap = $this->getDataMap($className);
 238                 $object->_setProperty('uid', intval($row['uid']));
 239                 $object->_setProperty('_localizedUid', intval($row['uid']));
 240                 if ($dataMap->getLanguageIdColumnName() !== NULL) {
 241                         $object->_setProperty('_languageUid', intval($row[$dataMap->getLanguageIdColumnName()]));
 242                         if (isset($row['_LOCALIZED_UID'])) {
 243                                 $object->_setProperty('_localizedUid', intval($row['_LOCALIZED_UID']));
 244                         }
 245                 }
 246                 $properties = $object->_getProperties();
 247                 foreach ($properties as $propertyName => $propertyValue) {
 248                         if (!$dataMap->isPersistableProperty($propertyName)) continue;
 249                         $columnMap = $dataMap->getColumnMap($propertyName);
 250                         $columnName = $columnMap->getColumnName();
 251                         $propertyData = $this->reflectionService->getClassSchema($className)->getProperty($propertyName);
 252                         $propertyValue = NULL;
 253                         if ($row[$columnName] !== NULL) {
 254                                 switch ($propertyData['type']) {
 255                                         case 'integer':
 256                                                 $propertyValue = (int) $row[$columnName];
 257                                         break;
 258                                         case 'float':
 259                                                 $propertyValue = (float) $row[$columnName];
 260                                         break;
 261                                         case 'boolean':
 262                                                 $propertyValue = (boolean) $row[$columnName];
 263                                         break;
 264                                         case 'string':
 265                                                 $propertyValue = (string) $row[$columnName];
 266                                         break;
 267                                         case 'array':
 268                                                 // $propertyValue = $this->mapArray($row[$columnName]); // Not supported, yet!
 269                                         break;
 270                                         case 'SplObjectStorage':
 271                                         case 'Tx_Extbase_Persistence_ObjectStorage':
 272                                                 $propertyValue = $this->mapResultToPropertyValue($object, $propertyName, $this->fetchRelated($object, $propertyName, $row[$columnName]));
 273                                         break;
 274                                         default:
 275                                                 if (($propertyData['type'] === 'DateTime') || in_array('DateTime', class_parents($propertyData['type']))) {
 276                                                         $propertyValue = $this->mapDateTime($row[$columnName]);
 277                                                 } else {
 278                                                         $propertyValue = $this->mapResultToPropertyValue($object, $propertyName, $this->fetchRelated($object, $propertyName, $row[$columnName]));
 279                                                         // $propertyValue = $this->mapToObject($row[$columnName]); // Not supported, yet!
 280                                                 }
 281                                         break;
 282                                 }
 283                         }
 284
 285                         if ($propertyValue !== NULL) {
 286                                 $object->_setProperty($propertyName, $propertyValue);
 287                         }
 288                 }
 289         }
 290
 291         /**
 292          * Creates a DateTime from an unix timestamp. If the input is empty
 293          * NULL is returned.
 294          *
 295          * @param integer $timestamp
 296          * @return DateTime
 297          */
 298         protected function mapDateTime($timestamp) {
 299                 if (empty($timestamp)) { // 0 -> NULL !!!
 300                         return NULL;
 301                 } else {
 302                         return new DateTime(date('c', $timestamp));
 303                 }
 304         }
 305
 306         /**
 307          * Fetches a collection of objects related to a property of a parent object
 308          *
 309          * @param Tx_Extbase_DomainObject_DomainObjectInterface $parentObject The object instance this proxy is part of
 310          * @param string $propertyName The name of the proxied property in it's parent
 311          * @param mixed $fieldValue The raw field value.
 312          * @param bool $enableLazyLoading A flag indication if the related objects should be lazy loaded
 313          * @param bool $performLanguageOverlay A flag indication if the related objects should be localized
 314          * @return mixed The result
 315          */
 316         public function fetchRelated(Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName, $fieldValue = '', $enableLazyLoading = TRUE) {
 317                 $columnMap = $this->getDataMap(get_class($parentObject))->getColumnMap($propertyName);
 318                 $propertyMetaData = $this->reflectionService->getClassSchema(get_class($parentObject))->getProperty($propertyName);
 319                 if ($enableLazyLoading === TRUE && $propertyMetaData['lazy']) {
 320                         if ($propertyMetaData['type'] === 'Tx_Extbase_Persistence_ObjectStorage') {
 321                                 $result = $this->objectManager->create('Tx_Extbase_Persistence_LazyObjectStorage', $parentObject, $propertyName, $fieldValue);
 322                         } else {
 323                                 if (empty($fieldValue)) {
 324                                         $result = NULL;
 325                                 } else {
 326                                         $result = $this->objectManager->create('Tx_Extbase_Persistence_LazyLoadingProxy', $parentObject, $propertyName, $fieldValue);
 327                                 }
 328                         }
 329                 } else {
 330                         $result = $this->fetchRelatedEager($parentObject, $propertyName, $fieldValue);
 331                 }
 332                 return $result;
 333         }
 334
 335         /**
 336          * Fetches the related objects from the storage backend.
 337          *
 338          * @param Tx_Extbase_DomainObject_DomainObjectInterface $parentObject The object instance this proxy is part of
 339          * @param string $propertyName The name of the proxied property in it's parent
 340          * @param mixed $fieldValue The raw field value.
 341          * @param bool $performLanguageOverlay A flag indication if the related objects should be localized
 342          * @return void
 343          */
 344         protected function fetchRelatedEager(Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName, $fieldValue = '') {
 345                 if ($fieldValue === '') return array();
 346                 $query = $this->getPreparedQuery($parentObject, $propertyName, $fieldValue);
 347                 return $query->execute();
 348         }
 349
 350         /**
 351          * Builds and returns the prepared query, ready to be executed.
 352          *
 353          * @param Tx_Extbase_DomainObject_DomainObjectInterface $parentObject
 354          * @param string $propertyName
 355          * @param string $fieldValue
 356          * @return void
 357          */
 358         protected function getPreparedQuery(Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName, $fieldValue = '') {
 359                 $columnMap = $this->getDataMap(get_class($parentObject))->getColumnMap($propertyName);
 360                 $type = $this->getType(get_class($parentObject), $propertyName);
 361
 362                 $query = $this->queryFactory->create($type);
 363                 $query->getQuerySettings()->setRespectStoragePage(FALSE);
 364                 if ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_MANY) {
 365                         if ($columnMap->getChildSortByFieldName() !== NULL) {
 366                                 $query->setOrderings(array($columnMap->getChildSortByFieldName() => Tx_Extbase_Persistence_QueryInterface::ORDER_ASCENDING));
 367                         }
 368                 } elseif ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_AND_BELONGS_TO_MANY) {
 369                         $query->setSource($this->getSource($parentObject, $propertyName));
 370                         if ($columnMap->getChildSortByFieldName() !== NULL) {
 371                                 $query->setOrderings(array($columnMap->getChildSortByFieldName() => Tx_Extbase_Persistence_QueryInterface::ORDER_ASCENDING));
 372                         }
 373                 }
 374                 $query->matching($this->getConstraint($query, $parentObject, $propertyName, $fieldValue, $columnMap->getRelationTableMatchFields()));
 375                 return $query;
 376         }
 377
 378         /**
 379          * Builds and returns the constraint for multi value properties.
 380          *
 381          * @param Tx_Extbase_Persistence_QueryInterface $query
 382          * @param Tx_Extbase_DomainObject_DomainObjectInterface $parentObject
 383          * @param string $propertyName
 384          * @param string $fieldValue
 385          * @param array $relationTableMatchFields
 386          * @return Tx_Extbase_Persistence_QOM_ConstraintInterface $constraint
 387          */
 388         protected function getConstraint(Tx_Extbase_Persistence_QueryInterface $query, Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName, $fieldValue = '', $relationTableMatchFields = array()) {
 389                 $columnMap = $this->getDataMap(get_class($parentObject))->getColumnMap($propertyName);
 390                 if ($columnMap->getParentKeyFieldName() !== NULL) {
 391                         $constraint = $query->equals($columnMap->getParentKeyFieldName(), $parentObject);
 392                         if($columnMap->getParentTableFieldName() !== NULL) {
 393                                 $constraint = $query->logicalAnd(
 394                                         $constraint,
 395                                         $query->equals($columnMap->getParentTableFieldName(), $this->getDataMap(get_class($parentObject))->getTableName())
 396                                         );
 397                         }
 398                 } else {
 399                         $constraint = $query->in('uid', t3lib_div::intExplode(',', $fieldValue));
 400                 }
 401                 if (count($relationTableMatchFields) > 0) {
 402                         foreach($relationTableMatchFields as $relationTableMatchFieldName => $relationTableMatchFieldValue) {
 403                                 $constraint = $query->logicalAnd($constraint, $query->equals($relationTableMatchFieldName, $relationTableMatchFieldValue));
 404                         }
 405                 }
 406                 return $constraint;
 407         }
 408
 409         /**
 410          * Builds and returns the source to build a join for a m:n relation.
 411          *
 412          * @param Tx_Extbase_DomainObject_DomainObjectInterface $parentObject
 413          * @param string $propertyName
 414          * @return Tx_Extbase_Persistence_QOM_SourceInterface $source
 415          */
 416         protected function getSource(Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName) {
 417                 $columnMap = $this->getDataMap(get_class($parentObject))->getColumnMap($propertyName);
 418                 $left = $this->qomFactory->selector(NULL, $columnMap->getRelationTableName());
 419                 $childClassName = $this->getType(get_class($parentObject), $propertyName);
 420                 $right = $this->qomFactory->selector($childClassName, $columnMap->getChildTableName());
 421                 $joinCondition = $this->qomFactory->equiJoinCondition($columnMap->getRelationTableName(), $columnMap->getChildKeyFieldName(), $columnMap->getChildTableName(), 'uid');
 422                 $source = $this->qomFactory->join(
 423                         $left,
 424                         $right,
 425                         Tx_Extbase_Persistence_QueryInterface::JCR_JOIN_TYPE_INNER,
 426                         $joinCondition
 427                         );
 428                 return $source;
 429         }
 430
 431         /**
 432          * Returns the given result as property value of the specified property type.
 433          *
 434          * @param mixed $result The result could be an object or an ObjectStorage
 435          * @param array $propertyMetaData The property meta data
 436          * @param array $result The result
 437          * @return void
 438          */
 439         public function mapResultToPropertyValue(Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName, $result) {
 440                 if ($result instanceof Tx_Extbase_Persistence_LoadingStrategyInterface) {
 441                         $propertyValue = $result;
 442                 } else {
 443                         $propertyMetaData = $this->reflectionService->getClassSchema(get_class($parentObject))->getProperty($propertyName);
 444                         $columnMap = $this->getDataMap(get_class($parentObject))->getColumnMap($propertyName);
 445                         if (in_array($propertyMetaData['type'], array('array', 'ArrayObject', 'SplObjectStorage', 'Tx_Extbase_Persistence_ObjectStorage'))) {
 446                                 $elementType = $this->getType(get_class($parentObject), $propertyName);
 447                                 $objects = array();
 448                                 foreach ($result as $value) {
 449                                         $objects[] = $value;
 450                                 }
 451
 452                                 if ($propertyMetaData['type'] === 'ArrayObject') {
 453                                         $propertyValue = new ArrayObject($objects);
 454                                 } elseif ($propertyMetaData['type'] === 'Tx_Extbase_Persistence_ObjectStorage') {
 455                                         $propertyValue = new Tx_Extbase_Persistence_ObjectStorage();
 456                                         foreach ($objects as $object) {
 457                                                 $propertyValue->attach($object);
 458                                         }
 459                                         $propertyValue->_memorizeCleanState();
 460                                 } else {
 461                                         $propertyValue = $objects;
 462                                 }
 463                         } elseif (strpos($propertyMetaData['type'], '_') !== FALSE) {
 464                                 if (is_array($result)) {
 465
 466                                         if (current($result) !== FALSE) {
 467                                                 $propertyValue = current($result);
 468                                         } else {
 469                                                 $propertyValue = NULL;
 470                                         }
 471                                 } else {
 472                                         $propertyValue = $result;
 473                                 }
 474                         }
 475                 }
 476                 return $propertyValue;
 477         }
 478
 479         /**
 480          * Counts the number of related objects assigned to a property of a parent object
 481          *
 482          * @param Tx_Extbase_DomainObject_DomainObjectInterface $parentObject The object instance this proxy is part of
 483          * @param string $propertyName The name of the proxied property in it's parent
 484          * @param mixed $fieldValue The raw field value.
 485          */
 486         public function countRelated(Tx_Extbase_DomainObject_DomainObjectInterface $parentObject, $propertyName, $fieldValue = '') {
 487                 $query = $this->getPreparedQuery($parentObject, $propertyName, $fieldValue);
 488                 return $query->count();
 489         }
 490
 491         /**
 492          * Delegates the call to the Data Map.
 493          * Returns TRUE if the property is persistable (configured in $TCA)
 494          *
 495          * @param string $className The property name
 496          * @param string $propertyName The property name
 497          * @return boolean TRUE if the property is persistable (configured in $TCA)
 498          */
 499         public function isPersistableProperty($className, $propertyName) {
 500                 $dataMap = $this->getDataMap($className);
 501                 return $dataMap->isPersistableProperty($propertyName);
 502         }
 503
 504         /**
 505          * Returns a data map for a given class name
 506          *
 507          * @param string $className The class name you want to fetch the Data Map for
 508          * @return Tx_Extbase_Persistence_Mapper_DataMap The data map
 509          */
 510         public function getDataMap($className) {
 511                 if (!is_string($className) || strlen($className) === 0) throw new Tx_Extbase_Persistence_Exception('No class name was given to retrieve the Data Map for.', 1251315965);
 512                 if (!isset($this->dataMaps[$className])) {
 513                         $this->dataMaps[$className] = $this->dataMapFactory->buildDataMap($className);
 514                 }
 515                 return $this->dataMaps[$className];
 516         }
 517
 518         /**
 519          * Returns the selector (table) name for a given class name.
 520          *
 521          * @param string $className
 522          * @return string The selector name
 523          */
 524         public function convertClassNameToTableName($className = NULL) {
 525                 if ($className !== NULL) {
 526                         $tableName = $this->getDataMap($className)->getTableName();
 527                 } else {
 528                         $tableName = strtolower($className);
 529                 }
 530                 return $tableName;
 531         }
 532
 533         /**
 534          * Returns the column name for a given property name of the specified class.
 535          *
 536          * @param string $className
 537          * @param string $propertyName
 538          * @return string The column name
 539          */
 540         public function convertPropertyNameToColumnName($propertyName, $className = NULL) {
 541                 if (!empty($className)) {
 542                         $dataMap = $this->getDataMap($className);
 543                         if ($dataMap !== NULL) {
 544                                 $columnMap = $dataMap->getColumnMap($propertyName);
 545                                 if ($columnMap !== NULL) {
 546                                         return $columnMap->getColumnName();
 547                                 }
 548                         }
 549                 }
 550                 return Tx_Extbase_Utility_Extension::convertCamelCaseToLowerCaseUnderscored($propertyName);
 551         }
 552
 553         /**
 554          * Returns the type of a child object.
 555          *
 556          * @param string $parentClassName The class name of the object this proxy is part of
 557          * @param string $propertyName The name of the proxied property in it's parent
 558          * @return string The class name of the child object
 559          */
 560         public function getType($parentClassName, $propertyName) {
 561                 $propertyMetaData = $this->reflectionService->getClassSchema($parentClassName)->getProperty($propertyName);
 562                 if (!empty($propertyMetaData['elementType'])) {
 563                         $type = $propertyMetaData['elementType'];
 564                 } elseif (!empty($propertyMetaData['type'])) {
 565                         $type = $propertyMetaData['type'];
 566                 } else {
 567                         throw new Tx_Extbase_Persistence_Exception_UnexpectedTypeException('Could not determine the child object type.', 1251315967);
 568                 }
 569                 return $type;
 570         }
 571
 572 }
 573 ?>