typo3/sysext/extbase/Classes/Persistence/Storage/Typo3DbBackend.php

   1 <?php
   2 /***************************************************************
   3 *  Copyright notice
   4 *
   5 *  (c) 2009 Jochen Rau <jochen.rau@typoplanet.de>
   6 *  All rights reserved
   7 *
   8 *  This class is a backport of the corresponding class of FLOW3.
   9 *  All credits go to the v5 team.
  10 *
  11 *  This script is part of the TYPO3 project. The TYPO3 project is
  12 *  free software; you can redistribute it and/or modify
  13 *  it under the terms of the GNU General Public License as published by
  14 *  the Free Software Foundation; either version 2 of the License, or
  15 *  (at your option) any later version.
  16 *
  17 *  The GNU General Public License can be found at
  18 *  http://www.gnu.org/copyleft/gpl.html.
  19 *
  20 *  This script is distributed in the hope that it will be useful,
  21 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 *  GNU General Public License for more details.
  24 *
  25 *  This copyright notice MUST APPEAR in all copies of the script!
  26 ***************************************************************/
  27
  28 /**
  29  * A Storage backend
  30  *
  31  * @package Extbase
  32  * @subpackage Persistence\Storage
  33  * @version $Id$
  34  */
  35 class Tx_Extbase_Persistence_Storage_Typo3DbBackend implements Tx_Extbase_Persistence_Storage_BackendInterface, t3lib_Singleton {
  36
  37         const OPERATOR_EQUAL_TO_NULL = 'operatorEqualToNull';
  38         const OPERATOR_NOT_EQUAL_TO_NULL = 'operatorNotEqualToNull';
  39
  40         /**
  41          * The TYPO3 database object
  42          *
  43          * @var t3lib_db
  44          */
  45         protected $databaseHandle;
  46
  47         /**
  48          * @var Tx_Extbase_Persistence_DataMapper
  49          */
  50         protected $dataMapper;
  51
  52         /**
  53          * The TYPO3 page select object. Used for language and workspace overlay
  54          *
  55          * @var t3lib_pageSelect
  56          */
  57         protected $pageSelectObject;
  58
  59         /**
  60          * A first-level TypoScript configuration cache
  61          *
  62          * @var array
  63          */
  64         protected $pageTSConfigCache = array();
  65
  66         /**
  67          * Caches information about tables (esp. the existing column names)
  68          *
  69          * @var array
  70          */
  71         protected $tableInformationCache = array();
  72
  73         /**
  74          * Constructor. takes the database handle from $GLOBALS['TYPO3_DB']
  75          */
  76         public function __construct() {
  77                 $this->databaseHandle = $GLOBALS['TYPO3_DB'];
  78         }
  79
  80         /**
  81          * Injects the DataMapper to map nodes to objects
  82          *
  83          * @param Tx_Extbase_Persistence_Mapper_DataMapper $dataMapper
  84          * @return void
  85          */
  86         public function injectDataMapper(Tx_Extbase_Persistence_Mapper_DataMapper $dataMapper) {
  87                 $this->dataMapper = $dataMapper;
  88         }
  89
  90         /**
  91          * Adds a row to the storage
  92          *
  93          * @param string $tableName The database table name
  94          * @param array $row The row to be inserted
  95          * @param boolean $isRelation TRUE if we are currently inserting into a relation table, FALSE by default
  96          * @return int The uid of the inserted row
  97          */
  98         public function addRow($tableName, array $row, $isRelation = FALSE) {
  99                 $fields = array();
 100                 $values = array();
 101                 $parameters = array();
 102                 if (isset($row['uid'])) {
 103                         unset($row['uid']);
 104                 }
 105                 foreach ($row as $columnName => $value) {
 106                         $fields[] = $columnName;
 107                         $values[] = '?';
 108                         $parameters[] = $value;
 109                 }
 110
 111                 $sqlString = 'INSERT INTO ' . $tableName . ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';
 112                 $this->replacePlaceholders($sqlString, $parameters);
 113                 // debug($sqlString,-2);
 114                 $this->databaseHandle->sql_query($sqlString);
 115                 $this->checkSqlErrors($sqlString);
 116                 $uid = $this->databaseHandle->sql_insert_id();
 117                 if (!$isRelation) {
 118                         $this->clearPageCache($tableName, $uid);
 119                 }
 120                 return (int)$uid;
 121         }
 122
 123         /**
 124          * Updates a row in the storage
 125          *
 126          * @param string $tableName The database table name
 127          * @param array $row The row to be updated
 128          * @param boolean $isRelation TRUE if we are currently inserting into a relation table, FALSE by default
 129          * @return void
 130          */
 131         public function updateRow($tableName, array $row, $isRelation = FALSE) {
 132                 if (!isset($row['uid'])) throw new InvalidArgumentException('The given row must contain a value for "uid".');
 133                 $uid = (int)$row['uid'];
 134                 unset($row['uid']);
 135                 $fields = array();
 136                 $parameters = array();
 137                 foreach ($row as $columnName => $value) {
 138                         $fields[] = $columnName . '=?';
 139                         $parameters[] = $value;
 140                 }
 141                 $parameters[] = $uid;
 142
 143                 $sqlString = 'UPDATE ' . $tableName . ' SET ' . implode(', ', $fields) . ' WHERE uid=?';
 144                 $this->replacePlaceholders($sqlString, $parameters);
 145                 // debug($sqlString,-2);
 146                 $returnValue = $this->databaseHandle->sql_query($sqlString);
 147                 $this->checkSqlErrors($sqlString);
 148                 if (!$isRelation) {
 149                         $this->clearPageCache($tableName, $uid);
 150                 }
 151                 return $returnValue;
 152         }
 153
 154         /**
 155          * Deletes a row in the storage
 156          *
 157          * @param string $tableName The database table name
 158          * @param array $identifier An array of identifier array('fieldname' => value). This array will be transformed to a WHERE clause
 159          * @param boolean $isRelation TRUE if we are currently manipulating a relation table, FALSE by default
 160          * @return void
 161          */
 162         public function removeRow($tableName, array $identifier, $isRelation = FALSE) {
 163                 $statement = 'DELETE FROM ' . $tableName . ' WHERE ' . $this->parseIdentifier($identifier);
 164                 $this->replacePlaceholders($statement, $identifier);
 165                 if (!$isRelation && isset($identifier['uid'])) {
 166                         $this->clearPageCache($tableName, $identifier['uid'], $isRelation);
 167                 }
 168                 // debug($statement, -2);
 169                 $returnValue = $this->databaseHandle->sql_query($statement);
 170                 $this->checkSqlErrors($statement);
 171                 return $returnValue;
 172         }
 173
 174         /**
 175          * Fetches row data from the database
 176          *
 177          * @param string $identifier The Identifier of the row to fetch
 178          * @param Tx_Extbase_Persistence_Mapper_DataMap $dataMap The Data Map
 179          * @return array|FALSE
 180          */
 181         public function getRowByIdentifier($tableName, array $identifier) {
 182                 $statement = 'SELECT * FROM ' . $tableName . ' WHERE ' . $this->parseIdentifier($identifier);
 183                 $this->replacePlaceholders($statement, $identifier);
 184                 // debug($statement,-2);
 185                 $res = $this->databaseHandle->sql_query($statement);
 186                 $this->checkSqlErrors($statement);
 187                 $row = $this->databaseHandle->sql_fetch_assoc($res);
 188                 if ($row !== FALSE) {
 189                         return $row;
 190                 } else {
 191                         return FALSE;
 192                 }
 193         }
 194
 195         protected function parseIdentifier(array $identifier) {
 196                 $fieldNames = array_keys($identifier);
 197                 $suffixedFieldNames = array();
 198                 foreach ($fieldNames as $fieldName) {
 199                         $suffixedFieldNames[] = $fieldName . '=?';
 200                 }
 201                 return implode(' AND ', $suffixedFieldNames);
 202         }
 203
 204         /**
 205          * Returns the object data matching the $query.
 206          *
 207          * @param Tx_Extbase_Persistence_QueryInterface $query
 208          * @return array
 209          * @author Karsten Dambekalns <karsten@typo3.org>
 210          */
 211         public function getObjectDataByQuery(Tx_Extbase_Persistence_QueryInterface $query) {
 212                 $parameters = array();
 213
 214                 $statement = $query->getStatement();
 215                 if($statement instanceof Tx_Extbase_Persistence_QOM_Statement) {
 216                         $sql = $statement->getStatement();
 217                         $parameters = $statement->getBoundVariables();
 218                 } else {
 219                         $parameters = array();
 220                         $statementParts = $this->parseQuery($query, $parameters);
 221                         $sql = $this->buildQuery($statementParts, $parameters);
 222                 }
 223                 $this->replacePlaceholders($sql, $parameters);
 224                 // debug($sql,-2);
 225                 $result = $this->databaseHandle->sql_query($sql);
 226                 $this->checkSqlErrors($sql);
 227                 $rows = $this->getRowsFromResult($query->getSource(), $result);
 228                 $rows = $this->doLanguageAndWorkspaceOverlay($query->getSource(), $rows);
 229                 // TODO: implement $objectData = $this->processObjectRecords($statementHandle);
 230                 return $rows;
 231         }
 232
 233         /**
 234          * Returns the number of tuples matching the query.
 235          *
 236          * @param Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query
 237          * @return int The number of matching tuples
 238          */
 239         public function getObjectCountByQuery(Tx_Extbase_Persistence_QueryInterface $query) {
 240                 $constraint = $query->getConstraint();
 241                 if($constraint instanceof Tx_Extbase_Persistence_QOM_StatementInterface) throw new Tx_Extbase_Persistence_Storage_Exception_BadConstraint('Could not execute count on queries with a constraint of type Tx_Extbase_Persistence_QOM_StatementInterface', 1256661045);
 242                 $parameters = array();
 243                 $statementParts = $this->parseQuery($query, $parameters);
 244                 $statementParts['fields'] = array('COUNT(*)');
 245                 $statement = $this->buildQuery($statementParts, $parameters);
 246                 $this->replacePlaceholders($statement, $parameters);
 247                 // debug($statement,-2);
 248                 $result = $this->databaseHandle->sql_query($statement);
 249                 $this->checkSqlErrors($statement);
 250                 $rows = $this->getRowsFromResult($query->getSource(), $result);
 251                 return current(current($rows));
 252         }
 253
 254         /**
 255          * Parses the query and returns the SQL statement parts.
 256          *
 257          * @param Tx_Extbase_Persistence_QueryInterface $query The query
 258          * @return array The SQL statement parts
 259          */
 260         public function parseQuery(Tx_Extbase_Persistence_QueryInterface $query, array &$parameters) {
 261                 $sql = array();
 262                 $sql['keywords'] = array();
 263                 $sql['tables'] = array();
 264                 $sql['unions'] = array();
 265                 $sql['fields'] = array();
 266                 $sql['where'] = array();
 267                 $sql['additionalWhereClause'] = array();
 268                 $sql['orderings'] = array();
 269                 $sql['limit'] = array();
 270
 271                 $source = $query->getSource();
 272
 273                 $this->parseSource($source, $sql, $parameters);
 274                 $this->parseConstraint($query->getConstraint(), $source, $sql, $parameters);
 275                 $this->parseOrderings($query->getOrderings(), $source, $sql);
 276                 $this->parseLimitAndOffset($query->getLimit(), $query->getOffset(), $sql);
 277
 278                 $tableNames = array_unique(array_keys($sql['tables'] + $sql['unions']));
 279                 foreach ($tableNames as $tableName) {
 280                         if (is_string($tableName) && strlen($tableName) > 0) {
 281                                 $this->addAdditionalWhereClause($query->getQuerySettings(), $tableName, $sql);
 282                         }
 283                 }
 284
 285                 return $sql;
 286         }
 287
 288         /**
 289          * Returns the statement, ready to be executed.
 290          *
 291          * @param array $sql The SQL statement parts
 292          * @return string The SQL statement
 293          */
 294         public function buildQuery(array $sql) {
 295                 $statement = 'SELECT ' . implode(' ', $sql['keywords']) . ' '. implode(',', $sql['fields']) . ' FROM ' . implode(' ', $sql['tables']) . ' '. implode(' ', $sql['unions']);
 296                 if (!empty($sql['where'])) {
 297                         $statement .= ' WHERE ' . implode('', $sql['where']);
 298                         if (!empty($sql['additionalWhereClause'])) {
 299                                 $statement .= ' AND ' . implode(' AND ', $sql['additionalWhereClause']);
 300                         }
 301                 } elseif (!empty($sql['additionalWhereClause'])) {
 302                         $statement .= ' WHERE ' . implode(' AND ', $sql['additionalWhereClause']);
 303                 }
 304                 if (!empty($sql['orderings'])) {
 305                         $statement .= ' ORDER BY ' . implode(', ', $sql['orderings']);
 306                 }
 307                 if (!empty($sql['limit'])) {
 308                         $statement .= ' LIMIT ' . $sql['limit'];
 309                 }
 310                 return $statement;
 311         }
 312
 313         /**
 314          * Checks if a Value Object equal to the given Object exists in the data base
 315          *
 316          * @param Tx_Extbase_DomainObject_AbstractValueObject $object The Value Object
 317          * @return array The matching uid
 318          */
 319         public function getUidOfAlreadyPersistedValueObject(Tx_Extbase_DomainObject_AbstractValueObject $object) {
 320                 $fields = array();
 321                 $parameters = array();
 322                 $dataMap = $this->dataMapper->getDataMap(get_class($object));
 323                 $properties = $object->_getProperties();
 324                 foreach ($properties as $propertyName => $propertyValue) {
 325                         // FIXME We couple the Backend to the Entity implementation (uid, isClone); changes there breaks this method
 326                         if ($dataMap->isPersistableProperty($propertyName) && ($propertyName !== 'uid')  && ($propertyName !== 'pid') && ($propertyName !== 'isClone')) {
 327                                 if ($propertyValue === NULL) {
 328                                         $fields[] = $dataMap->getColumnMap($propertyName)->getColumnName() . ' IS NULL';
 329                                 } else {
 330                                         $fields[] = $dataMap->getColumnMap($propertyName)->getColumnName() . '=?';
 331                                         $parameters[] = $this->getPlainValue($propertyValue);
 332                                 }
 333                         }
 334                 }
 335                 $sql = array();
 336                 $sql['additionalWhereClause'] = array();
 337
 338                 $tableName = $dataMap->getTableName();
 339                 $this->addEnableFieldsStatement($tableName, $sql);
 340
 341                 $statement = 'SELECT * FROM ' . $tableName;
 342                 $statement .= ' WHERE ' . implode(' AND ', $fields);
 343                 if (!empty($sql['additionalWhereClause'])) {
 344                         $statement .= ' AND ' . implode(' AND ', $sql['additionalWhereClause']);
 345                 }
 346                 $this->replacePlaceholders($statement, $parameters);
 347                 // debug($statement,-2);
 348                 $res = $this->databaseHandle->sql_query($statement);
 349                 $this->checkSqlErrors($statement);
 350                 $row = $this->databaseHandle->sql_fetch_assoc($res);
 351                 if ($row !== FALSE) {
 352                         return (int)$row['uid'];
 353                 } else {
 354                         return FALSE;
 355                 }
 356         }
 357
 358         /**
 359          * Transforms a Query Source into SQL and parameter arrays
 360          *
 361          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 362          * @param array &$sql
 363          * @param array &$parameters
 364          * @return void
 365          */
 366         protected function parseSource(Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql) {
 367                 if ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) {
 368                         $className = $source->getNodeTypeName();
 369                         $tableName = $this->dataMapper->getDataMap($className)->getTableName();
 370                         $this->addRecordTypeConstraint($className, $sql);
 371                         $sql['fields'][$tableName] = $tableName . '.*';
 372                         $sql['tables'][$tableName] = $tableName;
 373                 } elseif ($source instanceof Tx_Extbase_Persistence_QOM_JoinInterface) {
 374                         $this->parseJoin($source, $sql);
 375                 }
 376         }
 377
 378         /**
 379          * Adda a constrint to ensure that the record type of the returned tuples is matching the data type of the repository.
 380          *
 381          * @param string $className The class name
 382          * @param array &$sql The query parts
 383          * @return void
 384          */
 385         protected function addRecordTypeConstraint($className, &$sql) {
 386                 if ($className !== NULL) {
 387                         $dataMap = $this->dataMapper->getDataMap($className);
 388                         if ($dataMap->getRecordTypeColumnName() !== NULL) {
 389                                 $recordTypes = array();
 390                                 if ($dataMap->getRecordType() !== NULL) {
 391                                         $recordTypes[] = $dataMap->getRecordType();
 392                                 }
 393                                 foreach ($dataMap->getSubclasses() as $subclassName) {
 394                                         $subclassDataMap = $this->dataMapper->getDataMap($subclassName);
 395                                         if ($subclassDataMap->getRecordType() !== NULL) {
 396                                                 $recordTypes[] = $subclassDataMap->getRecordType();
 397                                         }
 398                                 }
 399                                 if (count($recordTypes) > 0) {
 400                                         $recordTypeStatements = array();
 401                                         foreach ($recordTypes as $recordType) {
 402                                                 $recordTypeStatements[] = $dataMap->getTableName() . '.' . $dataMap->getRecordTypeColumnName() . '=' . $this->databaseHandle->fullQuoteStr($recordType, 'foo');
 403                                         }
 404                                         $sql['additionalWhereClause'][] = '(' . implode(' OR ', $recordTypeStatements) . ')';
 405                                 }
 406                         }
 407                 }
 408         }
 409
 410         /**
 411          * Transforms a Join into SQL and parameter arrays
 412          *
 413          * @param Tx_Extbase_Persistence_QOM_JoinInterface $join The join
 414          * @param array &$sql The query parts
 415          * @return void
 416          */
 417         protected function parseJoin(Tx_Extbase_Persistence_QOM_JoinInterface $join, array &$sql) {
 418                 $leftSource = $join->getLeft();
 419                 $leftClassName = $leftSource->getNodeTypeName();
 420                 $this->addRecordTypeConstraint($leftClassName, $sql);
 421                 $leftTableName = $leftSource->getSelectorName();
 422                 // $sql['fields'][$leftTableName] = $leftTableName . '.*';
 423                 $rightSource = $join->getRight();
 424                 if ($rightSource instanceof     Tx_Extbase_Persistence_QOM_JoinInterface) {
 425                         $rightClassName = $rightSource->getLeft()->getNodeTypeName();
 426                         $rightTableName = $rightSource->getLeft()->getSelectorName();
 427                 } else {
 428                         $rightClassName = $rightSource->getNodeTypeName();
 429                         $rightTableName = $rightSource->getSelectorName();
 430                         $sql['fields'][$leftTableName] = $rightTableName . '.*';
 431                 }
 432                 $this->addRecordTypeConstraint($rightClassName, $sql);
 433
 434                 $sql['tables'][$leftTableName] = $leftTableName;
 435                 $sql['unions'][$rightTableName] = 'LEFT JOIN ' . $rightTableName;
 436
 437                 $joinCondition = $join->getJoinCondition();
 438                 if ($joinCondition instanceof Tx_Extbase_Persistence_QOM_EquiJoinCondition) {
 439                         $column1Name = $this->dataMapper->convertPropertyNameToColumnName($joinCondition->getProperty1Name(), $leftClassName);
 440                         $column2Name = $this->dataMapper->convertPropertyNameToColumnName($joinCondition->getProperty2Name(), $rightClassName);
 441                         $sql['unions'][$rightTableName] .= ' ON ' . $joinCondition->getSelector1Name() . '.' . $column1Name . ' = ' . $joinCondition->getSelector2Name() . '.' . $column2Name;
 442                 }
 443                 if ($rightSource instanceof Tx_Extbase_Persistence_QOM_JoinInterface) {
 444                         $this->parseJoin($rightSource, $sql);
 445                 }
 446         }
 447
 448         /**
 449          * Transforms a constraint into SQL and parameter arrays
 450          *
 451          * @param Tx_Extbase_Persistence_QOM_ConstraintInterface $constraint The constraint
 452          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 453          * @param array &$sql The query parts
 454          * @param array &$parameters The parameters that will replace the markers
 455          * @param array $boundVariableValues The bound variables in the query (key) and their values (value)
 456          * @return void
 457          */
 458         protected function parseConstraint(Tx_Extbase_Persistence_QOM_ConstraintInterface $constraint = NULL, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters) {
 459                 if ($constraint instanceof Tx_Extbase_Persistence_QOM_AndInterface) {
 460                         $sql['where'][] = '(';
 461                         $this->parseConstraint($constraint->getConstraint1(), $source, $sql, $parameters);
 462                         $sql['where'][] = ' AND ';
 463                         $this->parseConstraint($constraint->getConstraint2(), $source, $sql, $parameters);
 464                         $sql['where'][] = ')';
 465                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_OrInterface) {
 466                         $sql['where'][] = '(';
 467                         $this->parseConstraint($constraint->getConstraint1(), $source, $sql, $parameters);
 468                         $sql['where'][] = ' OR ';
 469                         $this->parseConstraint($constraint->getConstraint2(), $source, $sql, $parameters);
 470                         $sql['where'][] = ')';
 471                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_NotInterface) {
 472                         $sql['where'][] = 'NOT (';
 473                         $this->parseConstraint($constraint->getConstraint(), $source, $sql, $parameters);
 474                         $sql['where'][] = ')';
 475                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_ComparisonInterface) {
 476                         $this->parseComparison($constraint, $source, $sql, $parameters);
 477                 }
 478         }
 479
 480         /**
 481          * Parse a Comparison into SQL and parameter arrays.
 482          *
 483          * @param Tx_Extbase_Persistence_QOM_ComparisonInterface $comparison The comparison to parse
 484          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 485          * @param array &$sql SQL query parts to add to
 486          * @param array &$parameters Parameters to bind to the SQL
 487          * @param array $boundVariableValues The bound variables in the query and their values
 488          * @return void
 489          */
 490         protected function parseComparison(Tx_Extbase_Persistence_QOM_ComparisonInterface $comparison, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters) {
 491                 $operand1 = $comparison->getOperand1();
 492                 $operator = $comparison->getOperator();
 493                 $operand2 = $comparison->getOperand2();
 494                 if (($operator === Tx_Extbase_Persistence_QueryInterface::OPERATOR_EQUAL_TO) && (is_array($operand2) || ($operand2 instanceof ArrayAccess) || ($operand2 instanceof Traversable))) {
 495                         // this else branch enables equals() to behave like in(). This behavior is deprecated and will be removed in future. Use in() instead.
 496                         $operator = Tx_Extbase_Persistence_QueryInterface::OPERATOR_IN;
 497                 }
 498
 499                 if ($operator === Tx_Extbase_Persistence_QueryInterface::OPERATOR_IN) {
 500                         $items = array();
 501                         $hasValue = FALSE;
 502                         foreach ($operand2 as $value) {
 503                                 $value = $this->getPlainValue($value);
 504                                 if ($value !== NULL) {
 505                                         $items[] = $value;
 506                                         $hasValue = TRUE;
 507                                 }
 508                         }
 509                         if ($hasValue === FALSE) {
 510                                 $sql['where'][] = '1<>1';
 511                         } else {
 512                                 $this->parseDynamicOperand($operand1, $operator, $source, $sql, $parameters, NULL, $operand2);
 513                                 $parameters[] = $items;
 514                         }
 515                 } elseif ($operator === Tx_Extbase_Persistence_QueryInterface::OPERATOR_CONTAINS) {
 516                         if ($operand2 === NULL) {
 517                                 $sql['where'][] = '1<>1';
 518                         } else {
 519                                 $className = $source->getNodeTypeName();
 520                                 $tableName = $this->dataMapper->convertClassNameToTableName($className);
 521                                 $propertyName = $operand1->getPropertyName();
 522                                 while (strpos($propertyName, '.') !== FALSE) {
 523                                         $this->addUnionStatement($className, $tableName, $propertyName, $sql);
 524                                 }
 525                                 $columnName = $this->dataMapper->convertPropertyNameToColumnName($propertyName, $className);
 526                                 $dataMap = $this->dataMapper->getDataMap($className);
 527                                 $columnMap = $dataMap->getColumnMap($propertyName);
 528                                 $typeOfRelation = $columnMap->getTypeOfRelation();
 529                                 if ($typeOfRelation === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_AND_BELONGS_TO_MANY) {
 530                                         $relationTableName = $columnMap->getRelationTableName();
 531                                         $sql['where'][] = $tableName . '.uid IN (SELECT ' . $columnMap->getParentKeyFieldName() . ' FROM ' . $relationTableName . ' WHERE ' . $columnMap->getChildKeyFieldName() . '=' . $this->getPlainValue($operand2) . ')';
 532                                 } elseif ($typeOfRelation === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_MANY) {
 533                                         $parentKeyFieldName = $columnMap->getParentKeyFieldName();
 534                                         if (isset($parentKeyFieldName)) {
 535                                                 $childTableName = $columnMap->getChildTableName();
 536                                                 $sql['where'][] = $tableName . '.uid=(SELECT ' . $childTableName . '.' . $parentKeyFieldName . ' FROM ' . $childTableName . ' WHERE ' . $childTableName . '.uid=' . $this->getPlainValue($operand2) . ')';
 537                                         } else {
 538                                                 $columnName = $this->dataMapper->convertPropertyNameToColumnName($operand1->getPropertyName(), $source->getNodeTypeName());
 539                                                 $statement = 'FIND_IN_SET(' . $this->getPlainValue($operand2) . ',' . $tableName . '.' . $columnName . ')';
 540                                                 $sql['where'][] = $statement;
 541                                         }
 542                                 } else {
 543                                         throw new Tx_Extbase_Persistence_Exception_RepositoryException('Unsupported relation for contains().', 1267832524);
 544                                 }
 545                         }
 546                 } else {
 547                         if ($operand2 === NULL) {
 548                                 if ($operator === Tx_Extbase_Persistence_QueryInterface::OPERATOR_EQUAL_TO) {
 549                                         $operator = self::OPERATOR_EQUAL_TO_NULL;
 550                                 } elseif ($operator === Tx_Extbase_Persistence_QueryInterface::OPERATOR_NOT_EQUAL_TO) {
 551                                         $operator = self::OPERATOR_NOT_EQUAL_TO_NULL;
 552                                 }
 553                         }
 554                         $this->parseDynamicOperand($operand1, $operator, $source, $sql, $parameters);
 555                         $parameters[] = $this->getPlainValue($operand2);
 556                 }
 557         }
 558
 559         /**
 560          * Returns a plain value, i.e. objects are flattened out if possible.
 561          *
 562          * @param mixed $input
 563          * @return mixed
 564          */
 565         protected function getPlainValue($input) {
 566                 if (is_array($input)) {
 567                         throw new Tx_Extbase_Persistence_Exception_UnexpectedTypeException('An array could not be converted to a plain value.', 1274799932);
 568                 }
 569                 if ($input instanceof DateTime) {
 570                         return $input->format('U');
 571                 } elseif (is_object($input)) {
 572                         if ($input instanceof Tx_Extbase_DomainObject_DomainObjectInterface) {
 573                                 return $input->getUid();
 574                         } else {
 575                                 throw new Tx_Extbase_Persistence_Exception_UnexpectedTypeException('An object of class "' . get_class($input) . '" could not be converted to a plain value.', 1274799934);
 576                         }
 577                 } elseif (is_bool($input)) {
 578                         return $input === TRUE ? 1 : 0;
 579                 } else {
 580                         return $input;
 581                 }
 582         }
 583
 584         /**
 585          * Parse a DynamicOperand into SQL and parameter arrays.
 586          *
 587          * @param Tx_Extbase_Persistence_QOM_DynamicOperandInterface $operand
 588          * @param string $operator One of the JCR_OPERATOR_* constants
 589          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 590          * @param array &$sql The query parts
 591          * @param array &$parameters The parameters that will replace the markers
 592          * @param string $valueFunction an optional SQL function to apply to the operand value
 593          * @return void
 594          */
 595         protected function parseDynamicOperand(Tx_Extbase_Persistence_QOM_DynamicOperandInterface $operand, $operator, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters, $valueFunction = NULL, $operand2 = NULL) {
 596                 if ($operand instanceof Tx_Extbase_Persistence_QOM_LowerCaseInterface) {
 597                         $this->parseDynamicOperand($operand->getOperand(), $operator, $source, $sql, $parameters, 'LOWER');
 598                 } elseif ($operand instanceof Tx_Extbase_Persistence_QOM_UpperCaseInterface) {
 599                         $this->parseDynamicOperand($operand->getOperand(), $operator, $source, $sql, $parameters, 'UPPER');
 600                 } elseif ($operand instanceof Tx_Extbase_Persistence_QOM_PropertyValueInterface) {
 601                         $propertyName = $operand->getPropertyName();
 602                         if ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) { // FIXME Only necessary to differ from  Join
 603                                 $className = $source->getNodeTypeName();
 604                                 $tableName = $this->dataMapper->convertClassNameToTableName($className);
 605                                 while (strpos($propertyName, '.') !== FALSE) {
 606                                         $this->addUnionStatement($className, $tableName, $propertyName, $sql);
 607                                 }
 608                         } elseif ($source instanceof Tx_Extbase_Persistence_QOM_JoinInterface) {
 609                                 $tableName = $source->getJoinCondition()->getSelector1Name();
 610                         }
 611                         $columnName = $this->dataMapper->convertPropertyNameToColumnName($propertyName, $className);
 612                         $operator = $this->resolveOperator($operator);
 613                         if ($valueFunction === NULL) {
 614                                 $constraintSQL .= (!empty($tableName) ? $tableName . '.' : '') . $columnName .  ' ' . $operator . ' ?';
 615                         } else {
 616                                 $constraintSQL .= $valueFunction . '(' . (!empty($tableName) ? $tableName . '.' : '') . $columnName .  ' ' . $operator . ' ?';
 617                         }
 618
 619                         $sql['where'][] = $constraintSQL;
 620                 }
 621         }
 622
 623         protected function addUnionStatement(&$className, &$tableName, &$propertyPath, array &$sql) {
 624                 $explodedPropertyPath = explode('.', $propertyPath, 2);
 625                 $propertyName = $explodedPropertyPath[0];
 626                 $columnName = $this->dataMapper->convertPropertyNameToColumnName($propertyName, $className);
 627                 $tableName = $this->dataMapper->convertClassNameToTableName($className);
 628                 $columnMap = $this->dataMapper->getDataMap($className)->getColumnMap($propertyName);
 629                 $parentKeyFieldName = $columnMap->getParentKeyFieldName();
 630                 $childTableName = $columnMap->getChildTableName();
 631                 if ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_ONE) {
 632                         if (isset($parentKeyFieldName)) {
 633                                 $sql['unions'][$childTableName] = 'LEFT JOIN ' . $childTableName . ' ON ' . $tableName . '.uid=' . $childTableName . '.' . $parentKeyFieldName;
 634                         } else {
 635                                 $sql['unions'][$childTableName] = 'LEFT JOIN ' . $childTableName . ' ON ' . $tableName . '.' . $columnName . '=' . $childTableName . '.uid';
 636                         }
 637                         $className = $this->dataMapper->getType($className, $propertyName);
 638                 } elseif ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_MANY) {
 639                         if (isset($parentKeyFieldName)) {
 640                                 $sql['unions'][$childTableName] = 'LEFT JOIN ' . $childTableName . ' ON ' . $tableName . '.uid=' . $childTableName . '.' . $parentKeyFieldName;
 641                         } else {
 642                                 $onStatement = '(' . $tableName . '.' . $columnName . ' LIKE CONCAT(\'%,\',' . $childTableName . '.uid,\',%\')';
 643                                 $onStatement .= ' OR ' . $tableName . '.' . $columnName . ' LIKE CONCAT(\'%,\',' . $childTableName . '.uid)';
 644                                 $onStatement .= ' OR ' . $tableName . '.' . $columnName . ' LIKE CONCAT(' . $childTableName . '.uid,\',%\'))';
 645                                 $sql['unions'][$childTableName] = 'LEFT JOIN ' . $childTableName . ' ON ' . $onStatement;
 646                         }
 647                         $className = $this->dataMapper->getType($className, $propertyName);
 648                 } elseif ($columnMap->getTypeOfRelation() === Tx_Extbase_Persistence_Mapper_ColumnMap::RELATION_HAS_AND_BELONGS_TO_MANY) {
 649                         $relationTableName = $columnMap->getRelationTableName();
 650                         $sql['unions'][$relationTableName] = 'LEFT JOIN ' . $relationTableName . ' ON ' . $tableName . '.uid=' . $relationTableName . '.uid_local';
 651                         $sql['unions'][$childTableName] = 'LEFT JOIN ' . $childTableName . ' ON ' . $relationTableName . '.uid_foreign=' . $childTableName . '.uid';
 652                         $className = $this->dataMapper->getType($className, $propertyName);
 653                 } else {
 654                         throw new Tx_Extbase_Persistence_Exception('Could not determine type of relation.', 1252502725);
 655                 }
 656                 // TODO check if there is another solution for this
 657                 $sql['keywords']['distinct'] = 'DISTINCT';
 658                 $propertyPath = $explodedPropertyPath[1];
 659                 $tableName = $childTableName;
 660         }
 661
 662         /**
 663          * Returns the SQL operator for the given JCR operator type.
 664          *
 665          * @param string $operator One of the JCR_OPERATOR_* constants
 666          * @return string an SQL operator
 667          */
 668         protected function resolveOperator($operator) {
 669                 switch ($operator) {
 670                         case self::OPERATOR_EQUAL_TO_NULL:
 671                                 $operator = 'IS';
 672                                 break;
 673                         case self::OPERATOR_NOT_EQUAL_TO_NULL:
 674                                 $operator = 'IS NOT';
 675                                 break;
 676                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_IN:
 677                                 $operator = 'IN';
 678                                 break;
 679                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_EQUAL_TO:
 680                                 $operator = '=';
 681                                 break;
 682                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_NOT_EQUAL_TO:
 683                                 $operator = '!=';
 684                                 break;
 685                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_LESS_THAN:
 686                                 $operator = '<';
 687                                 break;
 688                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_LESS_THAN_OR_EQUAL_TO:
 689                                 $operator = '<=';
 690                                 break;
 691                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_GREATER_THAN:
 692                                 $operator = '>';
 693                                 break;
 694                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_GREATER_THAN_OR_EQUAL_TO:
 695                                 $operator = '>=';
 696                                 break;
 697                         case Tx_Extbase_Persistence_QueryInterface::OPERATOR_LIKE:
 698                                 $operator = 'LIKE';
 699                                 break;
 700                         default:
 701                                 throw new Tx_Extbase_Persistence_Exception('Unsupported operator encountered.', 1242816073);
 702                 }
 703
 704                 return $operator;
 705         }
 706
 707         /**
 708          * Replace query placeholders in a query part by the given
 709          * parameters.
 710          *
 711          * @param string $sqlString The query part with placeholders
 712          * @param array $parameters The parameters
 713          * @return string The query part with replaced placeholders
 714          */
 715         protected function replacePlaceholders(&$sqlString, array $parameters) {
 716                 // TODO profile this method again
 717                 if (substr_count($sqlString, '?') !== count($parameters)) throw new Tx_Extbase_Persistence_Exception('The number of question marks to replace must be equal to the number of parameters.', 1242816074);
 718                 $offset = 0;
 719                 foreach ($parameters as $parameter) {
 720                         $markPosition = strpos($sqlString, '?', $offset);
 721                         if ($markPosition !== FALSE) {
 722                                 if ($parameter === NULL) {
 723                                         $parameter = 'NULL';
 724                                 } elseif (is_array($parameter) || ($parameter instanceof ArrayAccess) || ($parameter instanceof Traversable)) {
 725                                         $items = array();
 726                                         foreach ($parameter as $item) {
 727                                                 $items[] = $this->databaseHandle->fullQuoteStr($item, 'foo');
 728                                         }
 729                                         $parameter = '(' . implode(',', $items) . ')';
 730                                 } else {
 731                                         $parameter = $this->databaseHandle->fullQuoteStr($parameter, 'foo'); // FIXME This may not work with DBAL; check this
 732                                 }
 733                                 $sqlString = substr($sqlString, 0, $markPosition) . $parameter . substr($sqlString, $markPosition + 1);
 734                         }
 735                         $offset = $markPosition + strlen($parameter);
 736                 }
 737         }
 738
 739         /**
 740          * Adds additional WHERE statements according to the query settings.
 741          *
 742          * @param Tx_Extbase_Persistence_QuerySettingsInterface $querySettings The TYPO3 4.x specific query settings
 743          * @param string $tableName The table name to add the additional where clause for
 744          * @param string $sql
 745          * @return void
 746          */
 747         protected function addAdditionalWhereClause(Tx_Extbase_Persistence_QuerySettingsInterface $querySettings, $tableName, &$sql) {
 748                 if ($querySettings instanceof Tx_Extbase_Persistence_Typo3QuerySettings) {
 749                         if ($querySettings->getRespectEnableFields()) {
 750                                 $this->addEnableFieldsStatement($tableName, $sql);
 751                         }
 752                         if ($querySettings->getRespectSysLanguage()) {
 753                                 $this->addSysLanguageStatement($tableName, $sql);
 754                         }
 755                         if ($querySettings->getRespectStoragePage()) {
 756                                 $this->addPageIdStatement($tableName, $sql);
 757                         }
 758                 }
 759         }
 760
 761         /**
 762          * Builds the enable fields statement
 763          *
 764          * @param string $tableName The database table name
 765          * @param array &$sql The query parts
 766          * @return void
 767          */
 768         protected function addEnableFieldsStatement($tableName, array &$sql) {
 769                 if (is_array($GLOBALS['TCA'][$tableName]['ctrl'])) {
 770                         if (TYPO3_MODE === 'FE') {
 771                                 $statement = $GLOBALS['TSFE']->sys_page->enableFields($tableName);
 772                         } else { // TYPO3_MODE === 'BE'
 773                                 $statement = t3lib_BEfunc::deleteClause($tableName);
 774                                 $statement .= t3lib_BEfunc::BEenableFields($tableName);
 775                         }
 776                         if(!empty($statement)) {
 777                                 $statement = substr($statement, 5);
 778                                 $sql['additionalWhereClause'][] = $statement;
 779                         }
 780                 }
 781         }
 782
 783         /**
 784          * Builds the language field statement
 785          *
 786          * @param string $tableName The database table name
 787          * @param array &$sql The query parts
 788          * @return void
 789          */
 790         protected function addSysLanguageStatement($tableName, array &$sql) {
 791                 if (is_array($GLOBALS['TCA'][$tableName]['ctrl'])) {
 792                         if(isset($GLOBALS['TCA'][$tableName]['ctrl']['languageField']) && $GLOBALS['TCA'][$tableName]['ctrl']['languageField'] !== NULL) {
 793                                 $sql['additionalWhereClause'][] = $tableName . '.' . $GLOBALS['TCA'][$tableName]['ctrl']['languageField'] . ' IN (0,-1)';
 794                         }
 795                 }
 796         }
 797
 798         /**
 799          * Builds the page ID checking statement
 800          *
 801          * @param string $tableName The database table name
 802          * @param array &$sql The query parts
 803          * @return void
 804          */
 805         protected function addPageIdStatement($tableName, array &$sql) {
 806                 if (empty($this->tableInformationCache[$tableName]['columnNames'])) {
 807                         $this->tableInformationCache[$tableName]['columnNames'] = $this->databaseHandle->admin_get_fields($tableName);
 808                 }
 809                 if (is_array($GLOBALS['TCA'][$tableName]['ctrl']) && array_key_exists('pid', $this->tableInformationCache[$tableName]['columnNames'])) {
 810                         $extbaseFrameworkConfiguration = Tx_Extbase_Dispatcher::getExtbaseFrameworkConfiguration();
 811                         $sql['additionalWhereClause'][] = $tableName . '.pid IN (' . implode(', ', t3lib_div::intExplode(',', $extbaseFrameworkConfiguration['persistence']['storagePid'])) . ')';
 812                 }
 813         }
 814
 815         /**
 816          * Transforms orderings into SQL.
 817          *
 818          * @param array $orderings An array of orderings (Tx_Extbase_Persistence_QOM_Ordering)
 819          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 820          * @param array &$sql The query parts
 821          * @return void
 822          */
 823         protected function parseOrderings(array $orderings, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql) {
 824                 foreach ($orderings as $propertyName => $order) {
 825                         switch ($order) {
 826                                 case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_ORDER_ASCENDING: // Deprecated since Extbase 1.1
 827                                 case Tx_Extbase_Persistence_QueryInterface::ORDER_ASCENDING:
 828                                         $order = 'ASC';
 829                                         break;
 830                                 case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_ORDER_DESCENDING: // Deprecated since Extbase 1.1
 831                                 case Tx_Extbase_Persistence_QueryInterface::ORDER_DESCENDING:
 832                                         $order = 'DESC';
 833                                         break;
 834                                 default:
 835                                         throw new Tx_Extbase_Persistence_Exception_UnsupportedOrder('Unsupported order encountered.', 1242816074);
 836                         }
 837                         if ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) {
 838                                 $className = $source->getNodeTypeName();
 839                                 $tableName = $this->dataMapper->convertClassNameToTableName($className);
 840                                 while (strpos($propertyName, '.') !== FALSE) {
 841                                         $this->addUnionStatement($className, $tableName, $propertyName, $sql);
 842                                 }
 843                         } elseif ($source instanceof Tx_Extbase_Persistence_QOM_JoinInterface) {
 844                                 $tableName = $source->getLeft()->getSelectorName();
 845                         }
 846                         $columnName = $this->dataMapper->convertPropertyNameToColumnName($propertyName, $className);
 847                         if (strlen($tableName) > 0) {
 848                                 $sql['orderings'][] = $tableName . '.' . $columnName . ' ' . $order;
 849                         } else {
 850                                 $sql['orderings'][] = $columnName . ' ' . $order;
 851                         }
 852                 }
 853         }
 854
 855         /**
 856          * Transforms limit and offset into SQL
 857          *
 858          * @param int $limit
 859          * @param int $offset
 860          * @param array &$sql
 861          * @return void
 862          */
 863         protected function parseLimitAndOffset($limit, $offset, array &$sql) {
 864                 if ($limit !== NULL && $offset !== NULL) {
 865                         $sql['limit'] = $offset . ', ' . $limit;
 866                 } elseif ($limit !== NULL) {
 867                         $sql['limit'] = $limit;
 868                 }
 869         }
 870
 871         /**
 872          * Transforms a Resource from a database query to an array of rows.
 873          *
 874          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source (selector od join)
 875          * @param resource $result The result
 876          * @return array The result as an array of rows (tuples)
 877          */
 878         protected function getRowsFromResult(Tx_Extbase_Persistence_QOM_SourceInterface $source, $result) {
 879                 $rows = array();
 880                 while ($row = $this->databaseHandle->sql_fetch_assoc($result)) {
 881                         if (is_array($row)) {
 882                                 // TODO Check if this is necessary, maybe the last line is enough
 883                                 $arrayKeys = range(0, count($row));
 884                                 array_fill_keys($arrayKeys, $row);
 885                                 $rows[] = $row;
 886                         }
 887                 }
 888                 return $rows;
 889         }
 890
 891         /**
 892          * Performs workspace and language overlay on the given row array. The language and workspace id is automatically
 893          * detected (depending on FE or BE context). You can also explicitly set the language/workspace id.
 894          *
 895          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source (selector od join)
 896          * @param array $row The row array (as reference)
 897          * @param string $languageUid The language id
 898          * @param string $workspaceUidUid The workspace id
 899          * @return void
 900          */
 901         protected function doLanguageAndWorkspaceOverlay(Tx_Extbase_Persistence_QOM_SourceInterface $source, array $rows, $languageUid = NULL, $workspaceUid = NULL) {
 902                 $overlayedRows = array();
 903                 foreach ($rows as $row) {
 904                         if (!($this->pageSelectObject instanceof t3lib_pageSelect)) {
 905                                 if (TYPO3_MODE == 'FE') {
 906                                         if (is_object($GLOBALS['TSFE'])) {
 907                                                 $this->pageSelectObject = $GLOBALS['TSFE']->sys_page;
 908                                         } else {
 909                                                 require_once(PATH_t3lib . 'class.t3lib_page.php');
 910                                                 $this->pageSelectObject = t3lib_div::makeInstance('t3lib_pageSelect');
 911                                         }
 912                                 } else {
 913                                         require_once(PATH_t3lib . 'class.t3lib_page.php');
 914                                         $this->pageSelectObject = t3lib_div::makeInstance( 't3lib_pageSelect' );
 915                                 }
 916                         }
 917                         if (is_object($GLOBALS['TSFE'])) {
 918                                 if ($languageUid === NULL) {
 919                                         $languageUid = $GLOBALS['TSFE']->sys_language_uid;
 920                                         $languageMode = $GLOBALS['TSFE']->sys_language_mode;
 921                                 }
 922                                 if ($workspaceUid !== NULL) {
 923                                         $this->pageSelectObject->versioningWorkspaceId = $workspaceUid;
 924                                 }
 925                         } else {
 926                                 if ($languageUid === NULL) {
 927                                         $languageUid = intval(t3lib_div::_GP('L'));
 928                                 }
 929                                 if ($workspaceUid === NULL) {
 930                                         $workspaceUid = $GLOBALS['BE_USER']->workspace;
 931                                 }
 932                                 $this->pageSelectObject->versioningWorkspaceId = $workspaceUid;
 933                         }
 934                         if ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) {
 935                                 $tableName = $source->getSelectorName();
 936                         } elseif ($source instanceof Tx_Extbase_Persistence_QOM_JoinInterface) {
 937                                 $tableName = $source->getRight()->getSelectorName();
 938                         }
 939                         $this->pageSelectObject->versionOL($tableName, $row, TRUE);
 940                         if(isset($GLOBALS['TCA'][$tableName]['ctrl']['languageField']) && $GLOBALS['TCA'][$tableName]['ctrl']['languageField'] !== '') {
 941                                 if (in_array($row[$GLOBALS['TCA'][$tableName]['ctrl']['languageField']], array(-1,0))) {
 942                                         $overlayMode = ($languageMode === 'strict') ? 'hideNonTranslated' : '';
 943                                         $row = $this->pageSelectObject->getRecordOverlay($tableName, $row, $languageUid, $overlayMode);
 944                                 }
 945                         }
 946                         if ($row !== NULL) {
 947                                 $overlayedRows[] = $row;
 948                         }
 949                 }
 950                 return $overlayedRows;
 951         }
 952
 953         /**
 954          * Checks if there are SQL errors in the last query, and if yes, throw an exception.
 955          *
 956          * @return void
 957          * @param string $sql The SQL statement
 958          * @throws Tx_Extbase_Persistence_Storage_Exception_SqlError
 959          */
 960         protected function checkSqlErrors($sql='') {
 961                 $error = $this->databaseHandle->sql_error();
 962                 if ($error !== '') {
 963                         $error .= $sql ? ': ' . $sql : '';
 964                         throw new Tx_Extbase_Persistence_Storage_Exception_SqlError($error, 1247602160);
 965                 }
 966         }
 967
 968         /**
 969          * Clear the TYPO3 page cache for the given record.
 970          * If the record lies on a page, then we clear the cache of this page.
 971          * If the record has no PID column, we clear the cache of the current page as best-effort.
 972          *
 973          * Much of this functionality is taken from t3lib_tcemain::clear_cache() which unfortunately only works with logged-in BE user.
 974          *
 975          * @param $tableName Table name of the record
 976          * @param $uid UID of the record
 977          * @return void
 978          */
 979         protected function clearPageCache($tableName, $uid) {
 980                 $extbaseSettings = Tx_Extbase_Dispatcher::getExtbaseFrameworkConfiguration();
 981                 if (isset($extbaseSettings['persistence']['enableAutomaticCacheClearing']) && $extbaseSettings['persistence']['enableAutomaticCacheClearing'] === '1') {
 982                 } else {
 983                         // if disabled, return
 984                         return;
 985                 }
 986
 987                 $pageIdsToClear = array();
 988                 $storagePage = NULL;
 989
 990                 $columns = $this->databaseHandle->admin_get_fields($tableName);
 991                 if (array_key_exists('pid', $columns)) {
 992                         $result = $this->databaseHandle->exec_SELECTquery('pid', $tableName, 'uid='.intval($uid));
 993                         if ($row = $this->databaseHandle->sql_fetch_assoc($result))     {
 994                                 $storagePage = $row['pid'];
 995                                 $pageIdsToClear[] = $storagePage;
 996                         }
 997                 } elseif (isset($GLOBALS['TSFE'])) {
 998                         // No PID column - we can do a best-effort to clear the cache of the current page if in FE
 999                         $storagePage = $GLOBALS['TSFE']->id;
1000                         $pageIdsToClear[] = $storagePage;
1001                 }
1002
1003                 if ($storagePage === NULL) {
1004                         return;
1005                 }
1006                 if (!isset($this->pageTSConfigCache[$storagePage])) {
1007                         $this->pageTSConfigCache[$storagePage] = t3lib_BEfunc::getPagesTSconfig($storagePage);
1008                 }
1009                 if (isset($this->pageTSConfigCache[$storagePage]['TCEMAIN.']['clearCacheCmd'])) {
1010                         $clearCacheCommands = t3lib_div::trimExplode(',',strtolower($this->pageTSConfigCache[$storagePage]['TCEMAIN.']['clearCacheCmd']),1);
1011                         $clearCacheCommands = array_unique($clearCacheCommands);
1012                         foreach ($clearCacheCommands as $clearCacheCommand)     {
1013                                 if (t3lib_div::testInt($clearCacheCommand))     {
1014                                         $pageIdsToClear[] = $clearCacheCommand;
1015                                 }
1016                         }
1017                 }
1018
1019                 // TODO check if we can hand this over to the Dispatcher to clear the page only once, this will save around 10% time while inserting and updating
1020                 Tx_Extbase_Utility_Cache::clearPageCache($pageIdsToClear);
1021         }
1022 }
1023
1024 ?>