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          * Constructs this Storage Backend instance
  61          *
  62          * @param t3lib_db $databaseHandle The database handle
  63          */
  64         public function __construct($databaseHandle) {
  65                 $this->databaseHandle = $databaseHandle;
  66         }
  67
  68         /**
  69          * Injects the DataMapper to map nodes to objects
  70          *
  71          * @param Tx_Extbase_Persistence_Mapper_DataMapper $dataMapper
  72          * @return void
  73          */
  74         public function injectDataMapper(Tx_Extbase_Persistence_Mapper_DataMapper $dataMapper) {
  75                 $this->dataMapper = $dataMapper;
  76         }
  77
  78         /**
  79          * Adds a row to the storage
  80          *
  81          * @param string $tableName The database table name
  82          * @param array $row The row to be inserted
  83          * @param boolean $isRelation TRUE if we are currently inserting into a relation table, FALSE by default
  84          * @return int The uid of the inserted row
  85          */
  86         public function addRow($tableName, array $row, $isRelation = FALSE) {
  87                 $fields = array();
  88                 $values = array();
  89                 $parameters = array();
  90                 if (isset($row['uid'])) {
  91                         unset($row['uid']);
  92                 }
  93                 foreach ($row as $columnName => $value) {
  94                         $fields[] = $columnName;
  95                         $values[] = '?';
  96                         $parameters[] = $value;
  97                 }
  98
  99                 $sqlString = 'INSERT INTO ' . $tableName . ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';
 100                 $this->replacePlaceholders($sqlString, $parameters);
 101                 $this->databaseHandle->sql_query($sqlString);
 102                 $this->checkSqlErrors();
 103                 $uid = $this->databaseHandle->sql_insert_id();
 104                 if (!$isRelation) {
 105                         $this->clearPageCache($tableName, $uid);
 106                 }
 107                 return $uid;
 108         }
 109
 110         /**
 111          * Updates a row in the storage
 112          *
 113          * @param string $tableName The database table name
 114          * @param array $row The row to be updated
 115          * @param boolean $isRelation TRUE if we are currently inserting into a relation table, FALSE by default
 116          * @return void
 117          */
 118         public function updateRow($tableName, array $row, $isRelation = FALSE) {
 119                 if (!isset($row['uid'])) throw new InvalidArgumentException('The given row must contain a value for "uid".');
 120                 $uid = (int)$row['uid'];
 121                 unset($row['uid']);
 122                 $fields = array();
 123                 $parameters = array();
 124                 foreach ($row as $columnName => $value) {
 125                         $fields[] = $columnName . '=?';
 126                         $parameters[] = $value;
 127                 }
 128                 $parameters[] = $uid;
 129
 130                 $sqlString = 'UPDATE ' . $tableName . ' SET ' . implode(', ', $fields) . ' WHERE uid=?';
 131                 $this->replacePlaceholders($sqlString, $parameters);
 132
 133                 $returnValue = $this->databaseHandle->sql_query($sqlString);
 134                 $this->checkSqlErrors();
 135                 if (!$isRelation) {
 136                         $this->clearPageCache($tableName, $uid);
 137                 }
 138                 return $returnValue;
 139         }
 140
 141         /**
 142          * Deletes a row in the storage
 143          *
 144          * @param string $tableName The database table name
 145          * @param array $uid The uid of the row to be deleted
 146          * @param boolean $isRelation TRUE if we are currently inserting into a relation table, FALSE by default
 147          * @return void
 148          */
 149         public function removeRow($tableName, $uid, $isRelation = FALSE) {
 150                 $sqlString = 'DELETE FROM ' . $tableName . ' WHERE uid=?';
 151                 $this->replacePlaceholders($sqlString, array((int)$uid));
 152                 if (!$isRelation) {
 153                         $this->clearPageCache($tableName, $uid, $isRelation);
 154                 }
 155                 $returnValue = $this->databaseHandle->sql_query($sqlString);
 156                 $this->checkSqlErrors();
 157                 return $returnValue;
 158         }
 159
 160         /**
 161          * Returns an array with tuples matching the query.
 162          *
 163          * @param Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query
 164          * @return array The matching tuples
 165          */
 166         public function getRows(Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query) {
 167                 $statement = $this->parseQuery($query);
 168 //              debug($statement, -2); // FIXME remove debug code
 169                 $result = $this->databaseHandle->sql_query($statement);
 170                 $this->checkSqlErrors();
 171                 if ($result) {
 172                         $tuples = $this->getRowsFromResult($query->getSource(), $result);
 173                 }
 174
 175                 return $tuples;
 176         }
 177
 178         /**
 179          * Returns an array with tuples matching the query.
 180          *
 181          * @param Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query
 182          * @return array The matching tuples
 183          */
 184         public function parseQuery(Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query) {
 185                 $statement = '';
 186                 $parameters = array();
 187                 $constraint = $query->getConstraint();
 188                 if($constraint instanceof Tx_Extbase_Persistence_QOM_StatementInterface) {
 189                         if ($constraint->getLanguage() === Tx_Extbase_Persistence_QOM_QueryObjectModelInterface::TYPO3_SQL_MYSQL) {
 190                                 $statement = $constraint->getStatement();
 191                                 $parameters= $query->getBoundVariableValues();
 192                         } else {
 193                                 throw new Tx_Extbase_Persistence_Exception('Unsupported query language.', 1248701951);
 194                         }
 195                 } else {
 196                         $sql = array();
 197                         $sql['tables'] = array();
 198                         $sql['fields'] = array();
 199                         $sql['where'] = array();
 200                         $sql['additionalWhereClause'] = array();
 201                         $sql['orderings'] = array();
 202                         $sql['limit'] = array();
 203                         $tuples = array();
 204
 205                         $source = $query->getSource();
 206                         $this->parseSource($query, $source, $sql, $parameters);
 207
 208                         $statement = 'SELECT ' . implode(',', $sql['fields']) . ' FROM ' . implode(' ', $sql['tables']);
 209
 210                         $this->parseConstraint($constraint, $source, $sql, $parameters, $query->getBoundVariableValues());
 211
 212                         if (!empty($sql['where'])) {
 213                                 $statement .= ' WHERE ' . implode('', $sql['where']);
 214                                 if (!empty($sql['additionalWhereClause'])) {
 215                                         $statement .= ' AND ' . implode(' AND ', $sql['additionalWhereClause']);
 216                                 }
 217                         } elseif (!empty($sql['additionalWhereClause'])) {
 218                                 $statement .= ' WHERE ' . implode(' AND ', $sql['additionalWhereClause']);
 219                         }
 220
 221                         $this->parseOrderings($query->getOrderings(), $source, $sql);
 222                         if (!empty($sql['orderings'])) {
 223                                 $statement .= ' ORDER BY ' . implode(', ', $sql['orderings']);
 224                         }
 225
 226                         $this->parseLimitAndOffset($query->getLimit(), $query->getOffset(), $sql);
 227                         if (!empty($sql['limit'])) {
 228                                 $statement .= ' LIMIT ' . $sql['limit'];
 229                         }
 230                 }
 231
 232                 $this->replacePlaceholders($statement, $parameters);
 233                 // debug($statement,-2);
 234                 return $statement;
 235         }
 236
 237         /**
 238          * Checks if a Value Object equal to the given Object exists in the data base
 239          *
 240          * @param array $properties The properties of the Value Object
 241          * @param Tx_Extbase_Persistence_Mapper_DataMap $dataMap The Data Map
 242          * @return array The matching uid
 243          */
 244         public function hasValueObject(array $properties, Tx_Extbase_Persistence_Mapper_DataMap $dataMap) {
 245                 $fields = array();
 246                 $parameters = array();
 247                 foreach ($properties as $propertyName => $propertyValue) {
 248                         // FIXME We couple the Backend to the Entity implementation (uid, isClone); changes there breaks this method
 249                         if ($dataMap->isPersistableProperty($propertyName) && ($propertyName !== 'uid')  && ($propertyName !== 'pid') && ($propertyName !== 'isClone')) {
 250                                 $fields[] = $dataMap->getColumnMap($propertyName)->getColumnName() . '=?';
 251                                 $parameters[] = $dataMap->convertPropertyValueToFieldValue($propertyValue);
 252                         }
 253                 }
 254                 $sql = array();
 255                 $sql['additionalWhereClause'] = array();
 256
 257                 $tableName = $dataMap->getTableName();
 258                 $this->addEnableFieldsStatement($tableName, $sql);
 259
 260                 $statement = 'SELECT * FROM ' . $tableName;
 261                 $statement .= ' WHERE ' . implode(' AND ', $fields);
 262                 if (!empty($sql['additionalWhereClause'])) {
 263                         $statement .= ' AND ' . implode(' AND ', $sql['additionalWhereClause']);
 264                 }
 265                 $this->replacePlaceholders($statement, $parameters);
 266                 $res = $this->databaseHandle->sql_query($statement);
 267                 $this->checkSqlErrors();
 268                 $row = $this->databaseHandle->sql_fetch_assoc($res);
 269                 if ($row !== FALSE) {
 270                         return $row['uid'];
 271                 } else {
 272                         return FALSE;
 273                 }
 274         }
 275
 276         /**
 277          * Transforms a Query Source into SQL and parameter arrays
 278          *
 279          * @param Tx_Extbase_Persistence_QOM_QueryObjectModel $query
 280          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 281          * @param array &$sql
 282          * @param array &$parameters
 283          * @return void
 284          */
 285         protected function parseSource(Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters) {
 286                 if ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) {
 287                         $tableName = $source->getSelectorName();
 288                         $sql['fields'][] = $tableName . '.*';
 289                         $sql['tables'][] = $tableName;
 290                         $querySettings = $query->getQuerySettings();
 291                         if ($querySettings instanceof Tx_Extbase_Persistence_Typo3QuerySettingsInterface) {
 292                                 if ($querySettings->getRespectEnableFields()) {
 293                                         $this->addEnableFieldsStatement($tableName, $sql);
 294                                 }
 295                                 if ($querySettings->getRespectStoragePage()) {
 296                                         $this->addPageIdStatement($tableName, $sql);
 297                                 }
 298                         }
 299                 } elseif ($source instanceof Tx_Extbase_Persistence_QOM_JoinInterface) {
 300                         $this->parseJoin($query, $source, $sql);
 301                 }
 302         }
 303
 304         /**
 305          * Transforms a Join into SQL and parameter arrays
 306          *
 307          * @param Tx_Extbase_Persistence_QOM_QueryObjectModel $query The Query Object Model
 308          * @param Tx_Extbase_Persistence_QOM_JoinInterface $join The join
 309          * @param array &$sql The query parts
 310          * @return void
 311          */
 312         protected function parseJoin(Tx_Extbase_Persistence_QOM_QueryObjectModelInterface $query, Tx_Extbase_Persistence_QOM_JoinInterface $join, array &$sql) {
 313                 $leftSource = $join->getLeft();
 314                 $leftTableName = $leftSource->getSelectorName();
 315                 $rightSource = $join->getRight();
 316                 $rightTableName = $rightSource->getSelectorName();
 317
 318                 $sql['fields'][] = $leftTableName . '.*';
 319                 $sql['fields'][] = $rightTableName . '.*';
 320
 321                 // TODO Implement support for different join types and nested joins
 322                 $sql['tables'][] = $leftTableName . ' LEFT JOIN ' . $rightTableName;
 323
 324                 $joinCondition = $join->getJoinCondition();
 325                 // TODO Check the parsing of the join
 326                 if ($joinCondition instanceof Tx_Extbase_Persistence_QOM_EquiJoinCondition) {
 327                         // TODO Discuss, if we should use $leftSource instead of $selector1Name
 328                         $column1Name = $this->dataMapper->convertPropertyNameToColumnName($joinCondition->getProperty1Name(), $leftSource->getNodeTypeName());
 329                         $column2Name = $this->dataMapper->convertPropertyNameToColumnName($joinCondition->getProperty2Name(), $rightSource->getNodeTypeName());
 330                         $sql['tables'][] = 'ON ' . $joinCondition->getSelector1Name() . '.' . $column1Name . ' = ' . $joinCondition->getSelector2Name() . '.' . $column2Name;
 331                 }
 332                 // TODO Implement childtableWhere
 333
 334                 $querySettings = $query->getQuerySettings();
 335                 if ($querySettings instanceof Tx_Extbase_Persistence_Typo3QuerySettingsInterface) {
 336                         if ($querySettings->getRespectEnableFields()) {
 337                                 $this->addEnableFieldsStatement($leftTableName, $sql);
 338                                 $this->addEnableFieldsStatement($rightTableName, $sql);
 339                         }
 340                         if ($querySettings->getRespectStoragePage()) {
 341                                 $this->addPageIdStatement($leftTableName, $sql);
 342                                 $this->addPageIdStatement($rightTableName, $sql);
 343                         }
 344                 }
 345         }
 346
 347         /**
 348          * Transforms a constraint into SQL and parameter arrays
 349          *
 350          * @param Tx_Extbase_Persistence_QOM_ConstraintInterface $constraint The constraint
 351          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 352          * @param array &$sql The query parts
 353          * @param array &$parameters The parameters that will replace the markers
 354          * @param array $boundVariableValues The bound variables in the query (key) and their values (value)
 355          * @return void
 356          */
 357         protected function parseConstraint(Tx_Extbase_Persistence_QOM_ConstraintInterface $constraint = NULL, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters, array $boundVariableValues) {
 358                 if ($constraint instanceof Tx_Extbase_Persistence_QOM_AndInterface) {
 359                         $sql['where'][] = '(';
 360                         $this->parseConstraint($constraint->getConstraint1(), $source, $sql, $parameters, $boundVariableValues);
 361                         $sql['where'][] = ' AND ';
 362                         $this->parseConstraint($constraint->getConstraint2(), $source, $sql, $parameters, $boundVariableValues);
 363                         $sql['where'][] = ')';
 364                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_OrInterface) {
 365                         $sql['where'][] = '(';
 366                         $this->parseConstraint($constraint->getConstraint1(), $source, $sql, $parameters, $boundVariableValues);
 367                         $sql['where'][] = ' OR ';
 368                         $this->parseConstraint($constraint->getConstraint2(), $source, $sql, $parameters, $boundVariableValues);
 369                         $sql['where'][] = ')';
 370                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_NotInterface) {
 371                         $sql['where'][] = 'NOT (';
 372                         $this->parseConstraint($constraint->getConstraint(), $source, $sql, $parameters, $boundVariableValues);
 373                         $sql['where'][] = ')';
 374                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_ComparisonInterface) {
 375                         $this->parseComparison($constraint, $source, $sql, $parameters, $boundVariableValues);
 376                 } elseif ($constraint instanceof Tx_Extbase_Persistence_QOM_RelatedInterface) {
 377                         $this->parseRelated($constraint, $sql, $parameters, $boundVariableValues);
 378                 }
 379         }
 380
 381         /**
 382          * Parse a Comparison into SQL and parameter arrays.
 383          *
 384          * @param Tx_Extbase_Persistence_QOM_ComparisonInterface $comparison The comparison to parse
 385          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 386          * @param array &$sql SQL query parts to add to
 387          * @param array &$parameters Parameters to bind to the SQL
 388          * @param array $boundVariableValues The bound variables in the query and their values
 389          * @return void
 390          */
 391         protected function parseComparison(Tx_Extbase_Persistence_QOM_ComparisonInterface $comparison, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters, array $boundVariableValues) {
 392                 if (!($comparison->getOperand2() instanceof Tx_Extbase_Persistence_QOM_BindVariableValueInterface)) throw new Tx_Extbase_Persistence_Exception('Type of operand is not supported', 1247581135);
 393
 394                 $value = $boundVariableValues[$comparison->getOperand2()->getBindVariableName()];
 395                 $operator = $comparison->getOperator();
 396                 if ($value === NULL) {
 397                         if ($operator === Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_EQUAL_TO) {
 398                                 $operator = self::OPERATOR_EQUAL_TO_NULL;
 399                         } elseif ($operator === Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_NOT_EQUAL_TO) {
 400                                 $operator = self::OPERATOR_NOT_EQUAL_TO_NULL;
 401                         } else {
 402                                 // TODO Throw exception
 403                         }
 404                 }
 405                 $parameters[] = $value;
 406
 407                 $this->parseDynamicOperand($comparison->getOperand1(), $operator, $source, $sql, $parameters);
 408         }
 409
 410         /**
 411          * Parse a DynamicOperand into SQL and parameter arrays.
 412          *
 413          * @param Tx_Extbase_Persistence_QOM_DynamicOperandInterface $operand
 414          * @param string $operator One of the JCR_OPERATOR_* constants
 415          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 416          * @param array &$sql The query parts
 417          * @param array &$parameters The parameters that will replace the markers
 418          * @param string $valueFunction an optional SQL function to apply to the operand value
 419          * @return void
 420          */
 421         protected function parseDynamicOperand(Tx_Extbase_Persistence_QOM_DynamicOperandInterface $operand, $operator, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql, array &$parameters, $valueFunction = NULL) {
 422                 if ($operand instanceof Tx_Extbase_Persistence_QOM_LowerCaseInterface) {
 423                         $this->parseDynamicOperand($operand->getOperand(), $operator, $source, $sql, $parameters, 'LOWER');
 424                 } elseif ($operand instanceof Tx_Extbase_Persistence_QOM_UpperCaseInterface) {
 425                         $this->parseDynamicOperand($operand->getOperand(), $operator, $source, $sql, $parameters, 'UPPER');
 426                 } elseif ($operand instanceof Tx_Extbase_Persistence_QOM_PropertyValueInterface) {
 427                         $tableName = $operand->getSelectorName();
 428                         // FIXME Discuss the translation from propertyName to columnName
 429                         if ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) {
 430                                 $className = $source->getNodeTypeName();
 431                         } else {
 432                                 $className = '';
 433                         }
 434                         $columnName = $this->dataMapper->convertPropertyNameToColumnName($operand->getPropertyName(), $className);
 435                         $operator = $this->resolveOperator($operator);
 436
 437                         if ($valueFunction === NULL) {
 438                                 $constraintSQL .= (!empty($tableName) ? $tableName . '.' : '') . $columnName .  ' ' . $operator . ' ?';
 439                         } else {
 440                                 $constraintSQL .= $valueFunction . '(' . (!empty($tableName) ? $tableName . '.' : '') . $columnName .  ' ' . $operator . ' ?';
 441                         }
 442
 443                         $sql['where'][] = $constraintSQL;
 444                 }
 445         }
 446
 447         /**
 448          * Returns the SQL operator for the given JCR operator type.
 449          *
 450          * @param string $operator One of the JCR_OPERATOR_* constants
 451          * @return string an SQL operator
 452          */
 453         protected function resolveOperator($operator) {
 454                 switch ($operator) {
 455                         case self::OPERATOR_EQUAL_TO_NULL:
 456                                 $operator = 'IS';
 457                                 break;
 458                         case self::OPERATOR_NOT_EQUAL_TO_NULL:
 459                                 $operator = 'IS NOT';
 460                                 break;
 461                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_EQUAL_TO:
 462                                 $operator = '=';
 463                                 break;
 464                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_NOT_EQUAL_TO:
 465                                 $operator = '!=';
 466                                 break;
 467                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_LESS_THAN:
 468                                 $operator = '<';
 469                                 break;
 470                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_LESS_THAN_OR_EQUAL_TO:
 471                                 $operator = '<=';
 472                                 break;
 473                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_GREATER_THAN:
 474                                 $operator = '>';
 475                                 break;
 476                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_GREATER_THAN_OR_EQUAL_TO:
 477                                 $operator = '>=';
 478                                 break;
 479                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_OPERATOR_LIKE:
 480                                 $operator = 'LIKE';
 481                                 break;
 482                         default:
 483                                 throw new Tx_Extbase_Persistence_Exception('Unsupported operator encountered.', 1242816073);
 484                 }
 485
 486                 return $operator;
 487         }
 488
 489         /**
 490          * Replace query placeholders in a query part by the given
 491          * parameters.
 492          *
 493          * @param string $sqlString The query part with placeholders
 494          * @param array $parameters The parameters
 495          * @return string The query part with replaced placeholders
 496          */
 497         protected function replacePlaceholders(&$sqlString, array $parameters) {
 498                 if (substr_count($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);
 499                 $offset = 0;
 500                 foreach ($parameters as $parameter) {
 501                         $markPosition = strpos($sqlString, '?', $offset);
 502                         if ($markPosition !== FALSE) {
 503                                 if ($parameter === NULL) {
 504                                         $parameter = 'NULL';
 505                                 } else {
 506                                         $parameter = $this->databaseHandle->fullQuoteStr($parameter, 'foo'); // FIXME This may not work with DBAL; check this
 507                                 }
 508                                 $sqlString = substr($sqlString, 0, $markPosition) . $parameter . substr($sqlString, $markPosition + 1);
 509                         }
 510                         $offset = $markPosition + strlen($parameter);
 511                 }
 512         }
 513
 514         /**
 515          * Builds the enable fields statement
 516          *
 517          * @param string $tableName The database table name
 518          * @param array &$sql The query parts
 519          * @return void
 520          */
 521         protected function addEnableFieldsStatement($tableName, array &$sql) {
 522                 if (is_array($GLOBALS['TCA'][$tableName]['ctrl'])) {
 523                         if (TYPO3_MODE === 'FE') {
 524                                 $statement = $GLOBALS['TSFE']->sys_page->enableFields($tableName);
 525                         } else { // TYPO3_MODE === 'BE'
 526                                 $statement = t3lib_BEfunc::deleteClause($tableName);
 527                                 $statement .= t3lib_BEfunc::BEenableFields($tableName);
 528                         }
 529                         if(!empty($statement)) {
 530                                 $statement = substr($statement, 5);
 531                                 $sql['additionalWhereClause'][] = $statement;
 532                         }
 533                 }
 534         }
 535
 536         /**
 537          * Builds the page ID checking statement
 538          *
 539          * @param string $tableName The database table name
 540          * @param array &$sql The query parts
 541          * @return void
 542          */
 543         protected function addPageIdStatement($tableName, array &$sql) {
 544                 if (is_array($GLOBALS['TCA'][$tableName]['ctrl'])) {
 545                         $extbaseFrameworkConfiguration = Tx_Extbase_Dispatcher::getExtbaseFrameworkConfiguration();
 546                         $sql['additionalWhereClause'][] = $tableName . '.pid IN (' . implode(', ', t3lib_div::intExplode(',', $extbaseFrameworkConfiguration['persistence']['storagePid'])) . ')';
 547                 }
 548         }
 549
 550         /**
 551          * Transforms orderings into SQL.
 552          *
 553          * @param array $orderings Ann array of orderings (Tx_Extbase_Persistence_QOM_Ordering)
 554          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source
 555          * @param array &$sql The query parts
 556          * @return void
 557          */
 558         protected function parseOrderings(array $orderings, Tx_Extbase_Persistence_QOM_SourceInterface $source, array &$sql) {
 559                 foreach ($orderings as $ordering) {
 560                         $operand = $ordering->getOperand();
 561                         $order = $ordering->getOrder();
 562                         if ($operand instanceof Tx_Extbase_Persistence_QOM_PropertyValue) {
 563                                 switch ($order) {
 564                                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_ORDER_ASCENDING:
 565                                                 $order = 'ASC';
 566                                                 break;
 567                                         case Tx_Extbase_Persistence_QOM_QueryObjectModelConstantsInterface::JCR_ORDER_DESCENDING:
 568                                                 $order = 'DESC';
 569                                                 break;
 570                                         default:
 571                                                 throw new Tx_Extbase_Persistence_Exception_UnsupportedOrder('Unsupported order encountered.', 1242816074);
 572                                 }
 573                                 $tableName = $operand->getSelectorName();
 574                                 if ((strlen($tableName) == 0) && (source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface)) {
 575                                         $tableName = $source->getSelectorName();
 576                                 }
 577                                 $columnName = $this->dataMapper->convertPropertyNameToColumnName($operand->getPropertyName(), $tableName);
 578                                 if (strlen($tableName) > 0) {
 579                                         $sql['orderings'][] = $tableName . '.' . $columnName . ' ' . $order;
 580                                 } else {
 581                                         $sql['orderings'][] = $columnName . ' ' . $order;
 582                                 }
 583                         }
 584                 }
 585         }
 586
 587         /**
 588          * Transforms limit and offset into SQL
 589          *
 590          * @param int $limit
 591          * @param int $offset
 592          * @param array &$sql
 593          * @return void
 594          */
 595         protected function parseLimitAndOffset($limit, $offset, array &$sql) {
 596                 if ($limit !== NULL && $offset !== NULL) {
 597                         $sql['limit'] = $offset . ', ' . $limit;
 598                 } elseif ($limit !== NULL) {
 599                         $sql['limit'] = $limit;
 600                 }
 601         }
 602
 603         /**
 604          * Transforms a Resource from a database query to an array of rows. Performs the language and
 605          * workspace overlay before.
 606          *
 607          * @param Tx_Extbase_Persistence_QOM_SourceInterface $source The source (selector od join)
 608          * @param resource &$sql The resource
 609          * @return array The result as an array of rows (tuples)
 610          */
 611         protected function getRowsFromResult(Tx_Extbase_Persistence_QOM_SourceInterface $source, $res) {
 612                 $rows = array();
 613                 while ($row = $this->databaseHandle->sql_fetch_assoc($res)) {
 614                         if      ($source instanceof Tx_Extbase_Persistence_QOM_SelectorInterface) {
 615                                 // FIXME The overlay is only performed if we query a single table; no joins
 616                                 $row = $this->doLanguageAndWorkspaceOverlay($source->getSelectorName(), $row);
 617                         }
 618                         if (is_array($row)) {
 619                                 // TODO Check if this is necessary, maybe the last line is enough
 620                                 $arrayKeys = range(0,count($row));
 621                                 array_fill_keys($arrayKeys, $row);
 622                                 $rows[] = $row;
 623                         }
 624                 }
 625                 return $rows;
 626         }
 627
 628         /**
 629          * Performs workspace and language overlay on the given row array. The language and workspace id is automatically
 630          * detected (depending on FE or BE context). You can also explicitly set the language/workspace id.
 631          *
 632          * @param Tx_Extbase_Persistence_Mapper_DataMap $dataMap
 633          * @param array $row The row array (as reference)
 634          * @param string $languageUid The language id
 635          * @param string $workspaceUidUid The workspace id
 636          * @return void
 637          */
 638         protected function doLanguageAndWorkspaceOverlay($tableName, array $row, $languageUid = NULL, $workspaceUid = NULL) {
 639                 if (!($this->pageSelectObject instanceof t3lib_pageSelect)) {
 640                         if (TYPO3_MODE == 'FE') {
 641                                 if (is_object($GLOBALS['TSFE'])) {
 642                                         $this->pageSelectObject = $GLOBALS['TSFE']->sys_page;
 643                                         if ($languageUid === NULL) {
 644                                                 $languageUid = $GLOBALS['TSFE']->sys_language_content;
 645                                         }
 646                                 } else {
 647                                         require_once(PATH_t3lib . 'class.t3lib_page.php');
 648                                         $this->pageSelectObject = t3lib_div::makeInstance('t3lib_pageSelect');
 649                                         if ($languageUid === NULL) {
 650                                                 $languageUid = intval(t3lib_div::_GP('L'));
 651                                         }
 652                                 }
 653                                 if ($workspaceUid !== NULL) {
 654                                         $this->pageSelectObject->versioningWorkspaceId = $workspaceUid;
 655                                 }
 656                         } else {
 657                                 require_once(PATH_t3lib . 'class.t3lib_page.php');
 658                                 $this->pageSelectObject = t3lib_div::makeInstance( 't3lib_pageSelect' );
 659                                 if ($workspaceUid === NULL) {
 660                                         $workspaceUid = $GLOBALS['BE_USER']->workspace;
 661                                 }
 662                                 $this->pageSelectObject->versioningWorkspaceId = $workspaceUid;
 663                         }
 664                 }
 665
 666                 $this->pageSelectObject->versionOL($tableName, $row, TRUE);
 667                 $row = $this->pageSelectObject->getRecordOverlay($tableName, $row, $languageUid, ''); //'hideNonTranslated'
 668                 // TODO Skip if empty languageoverlay (languagevisibility)
 669                 return $row;
 670         }
 671
 672         /**
 673          * Checks if there are SQL errors in the last query, and if yes, throw an exception.
 674          *
 675          * @return void
 676          * @throws Tx_Extbase_Persistence_Storage_Exception_SqlError
 677          */
 678         protected function checkSqlErrors() {
 679                 $error = $this->databaseHandle->sql_error();
 680                 if ($error !== '') {
 681                         throw new Tx_Extbase_Persistence_Storage_Exception_SqlError($error, 1247602160);
 682                 }
 683         }
 684
 685         /**
 686          * Clear the TYPO3 page cache for the given record.
 687          * Much of this functionality is taken from t3lib_tcemain::clear_cache() which unfortunately only works with logged-in BE user.
 688          *
 689          * @param $tableName Table name of the record
 690          * @param $uid UID of the record
 691          * @return void
 692          */
 693         protected function clearPageCache($tableName, $uid) {
 694                 $extbaseSettings = Tx_Extbase_Dispatcher::getExtbaseFrameworkConfiguration();
 695                 if (isset($extbaseSettings['persistence']['enableAutomaticCacheClearing']) && $extbaseSettings['persistence']['enableAutomaticCacheClearing'] === '1') {
 696                 } else {
 697                         // if disabled, return
 698                         return;
 699                 }
 700
 701                 $result = $this->databaseHandle->exec_SELECTquery('pid', $tableName, 'uid='.intval($uid));
 702
 703                 $pageIdsToClear = array();
 704                 if ($row = $this->databaseHandle->sql_fetch_assoc($result))     {
 705                         $storagePage = $row['pid'];
 706                         $pageIdsToClear[] = $storagePage;
 707                 }
 708                 if (!$storagePage) {
 709                         return;
 710                 }
 711
 712                 $pageTSConfig = t3lib_BEfunc::getPagesTSconfig($storagePage);
 713                 if (isset($pageTSConfig['TCEMAIN.']['clearCacheCmd']))  {
 714                         $clearCacheCommands = t3lib_div::trimExplode(',',strtolower($pageTSConfig['TCEMAIN.']['clearCacheCmd']),1);
 715                         $clearCacheCommands = array_unique($clearCacheCommands);
 716                         foreach ($clearCacheCommands as $clearCacheCommand)     {
 717                                 if (t3lib_div::testInt($clearCacheCommand))     {
 718                                         $pageIdsToClear[] = $clearCacheCommand;
 719                                 }
 720                         }
 721                 }
 722
 723                 Tx_Extbase_Utility_Cache::clearPageCache($pageIdsToClear);
 724         }
 725 }
 726
 727 ?>