/** * Walks down a SelectExpression AST node and generates the corresponding SQL. * * @param SelectExpression $selectExpression * @return string The SQL. */ public function walkSelectExpression($selectExpression) { $sql = ''; $expr = $selectExpression->expression; if ($expr instanceof AST\PathExpression) { if ($expr->type == AST\PathExpression::TYPE_STATE_FIELD) { $parts = $expr->parts; $fieldName = array_pop($parts); $dqlAlias = $expr->identificationVariable . (!empty($parts) ? '.' . implode('.', $parts) : ''); $qComp = $this->_queryComponents[$dqlAlias]; $class = $qComp['metadata']; if (!$selectExpression->fieldIdentificationVariable) { $resultAlias = $fieldName; } else { $resultAlias = $selectExpression->fieldIdentificationVariable; } if ($class->isInheritanceTypeJoined()) { $tableName = $this->_em->getUnitOfWork()->getEntityPersister($class->name)->getOwningTable($fieldName); } else { $tableName = $class->getTableName(); } $sqlTableAlias = $this->getSqlTableAlias($tableName, $dqlAlias); $columnName = $class->getQuotedColumnName($fieldName, $this->_platform); $columnAlias = $this->getSqlColumnAlias($columnName); $sql .= $sqlTableAlias . '.' . $columnName . ' AS ' . $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addScalarResult($columnAlias, $resultAlias); } else { throw QueryException::invalidPathExpression($expr->type); } } else { if ($expr instanceof AST\AggregateExpression) { if (!$selectExpression->fieldIdentificationVariable) { $resultAlias = $this->_scalarResultCounter++; } else { $resultAlias = $selectExpression->fieldIdentificationVariable; } $columnAlias = 'sclr' . $this->_aliasCounter++; $sql .= $this->walkAggregateExpression($expr) . ' AS ' . $columnAlias; $this->_scalarResultAliasMap[$resultAlias] = $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addScalarResult($columnAlias, $resultAlias); } else { if ($expr instanceof AST\Subselect) { if (!$selectExpression->fieldIdentificationVariable) { $resultAlias = $this->_scalarResultCounter++; } else { $resultAlias = $selectExpression->fieldIdentificationVariable; } $columnAlias = 'sclr' . $this->_aliasCounter++; $sql .= '(' . $this->walkSubselect($expr) . ') AS ' . $columnAlias; $this->_scalarResultAliasMap[$resultAlias] = $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addScalarResult($columnAlias, $resultAlias); } else { if ($expr instanceof AST\Functions\FunctionNode) { if (!$selectExpression->fieldIdentificationVariable) { $resultAlias = $this->_scalarResultCounter++; } else { $resultAlias = $selectExpression->fieldIdentificationVariable; } $columnAlias = 'sclr' . $this->_aliasCounter++; $sql .= $this->walkFunction($expr) . ' AS ' . $columnAlias; $this->_scalarResultAliasMap[$resultAlias] = $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addScalarResult($columnAlias, $resultAlias); } else { if ($expr instanceof AST\SimpleArithmeticExpression) { if (!$selectExpression->fieldIdentificationVariable) { $resultAlias = $this->_scalarResultCounter++; } else { $resultAlias = $selectExpression->fieldIdentificationVariable; } $columnAlias = 'sclr' . $this->_aliasCounter++; $sql .= $this->walkSimpleArithmeticExpression($expr) . ' AS ' . $columnAlias; $this->_scalarResultAliasMap[$resultAlias] = $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addScalarResult($columnAlias, $resultAlias); } else { // IdentificationVariable or PartialObjectExpression if ($expr instanceof AST\PartialObjectExpression) { $dqlAlias = $expr->identificationVariable; $partialFieldSet = $expr->partialFieldSet; } else { $dqlAlias = $expr; $partialFieldSet = array(); } $queryComp = $this->_queryComponents[$dqlAlias]; $class = $queryComp['metadata']; if (!isset($this->_selectedClasses[$dqlAlias])) { $this->_selectedClasses[$dqlAlias] = $class; } $beginning = true; // Select all fields from the queried class foreach ($class->fieldMappings as $fieldName => $mapping) { if ($partialFieldSet && !in_array($fieldName, $partialFieldSet)) { continue; } if (isset($mapping['inherited'])) { $tableName = $this->_em->getClassMetadata($mapping['inherited'])->primaryTable['name']; } else { $tableName = $class->primaryTable['name']; } if ($beginning) { $beginning = false; } else { $sql .= ', '; } $sqlTableAlias = $this->getSqlTableAlias($tableName, $dqlAlias); $columnAlias = $this->getSqlColumnAlias($mapping['columnName']); $sql .= $sqlTableAlias . '.' . $class->getQuotedColumnName($fieldName, $this->_platform) . ' AS ' . $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addFieldResult($dqlAlias, $columnAlias, $fieldName, $class->name); } // Add any additional fields of subclasses (excluding inherited fields) // 1) on Single Table Inheritance: always, since its marginal overhead // 2) on Class Table Inheritance only if partial objects are disallowed, // since it requires outer joining subtables. if ($class->isInheritanceTypeSingleTable() || !$this->_query->getHint(Query::HINT_FORCE_PARTIAL_LOAD)) { foreach ($class->subClasses as $subClassName) { $subClass = $this->_em->getClassMetadata($subClassName); $sqlTableAlias = $this->getSqlTableAlias($subClass->primaryTable['name'], $dqlAlias); foreach ($subClass->fieldMappings as $fieldName => $mapping) { if (isset($mapping['inherited']) || $partialFieldSet && !in_array($fieldName, $partialFieldSet)) { continue; } if ($beginning) { $beginning = false; } else { $sql .= ', '; } $columnAlias = $this->getSqlColumnAlias($mapping['columnName']); $sql .= $sqlTableAlias . '.' . $subClass->getQuotedColumnName($fieldName, $this->_platform) . ' AS ' . $columnAlias; $columnAlias = $this->_platform->getSQLResultCasing($columnAlias); $this->_rsm->addFieldResult($dqlAlias, $columnAlias, $fieldName, $subClassName); } // Add join columns (foreign keys) of the subclass //TODO: Probably better do this in walkSelectClause to honor the INCLUDE_META_COLUMNS hint foreach ($subClass->associationMappings as $fieldName => $assoc) { if ($assoc->isOwningSide && $assoc->isOneToOne() && !isset($subClass->inheritedAssociationFields[$fieldName])) { foreach ($assoc->targetToSourceKeyColumns as $srcColumn) { if ($beginning) { $beginning = false; } else { $sql .= ', '; } $columnAlias = $this->getSqlColumnAlias($srcColumn); $sql .= $sqlTableAlias . '.' . $srcColumn . ' AS ' . $columnAlias; $this->_rsm->addMetaResult($dqlAlias, $this->_platform->getSQLResultCasing($columnAlias), $srcColumn); } } } } } } } } } } return $sql; }
/** * {@inheritdoc} */ public function walkSelectExpression($selectExpression) { $sql = ''; $expr = $selectExpression->expression; $hidden = $selectExpression->hiddenAliasResultVariable; switch (true) { case $expr instanceof AST\PathExpression: if ($expr->type !== AST\PathExpression::TYPE_STATE_FIELD) { throw QueryException::invalidPathExpression($expr); } $fieldName = $expr->field; $dqlAlias = $expr->identificationVariable; $qComp = $this->queryComponents[$dqlAlias]; $class = $qComp['metadata']; $resultAlias = $selectExpression->fieldIdentificationVariable ?: $fieldName; $tableName = $class->isInheritanceTypeJoined() ? $this->em->getUnitOfWork()->getEntityPersister($class->name)->getOwningTable($fieldName) : $class->getTableName(); $sqlTableAlias = $this->getSQLTableAlias($tableName, $dqlAlias); $columnName = $this->quoteStrategy->getColumnName($fieldName, $class, $this->platform); $columnAlias = $this->getSQLColumnAlias($class->fieldMappings[$fieldName]['columnName']); $col = $sqlTableAlias . '.' . $columnName; $fieldType = $class->getTypeOfField($fieldName); if (isset($class->fieldMappings[$fieldName]['requireSQLConversion'])) { $type = Type::getType($fieldType); $col = $type->convertToPHPValueSQL($col, $this->conn->getDatabasePlatform()); } $sql .= $col . ' AS ' . $columnAlias; $this->scalarResultAliasMap[$resultAlias] = $columnAlias; if (!$hidden) { $this->rsm->addScalarResult($columnAlias, $resultAlias, $fieldType); $this->scalarFields[$dqlAlias][$fieldName] = $columnAlias; } break; case $expr instanceof AST\AggregateExpression: case $expr instanceof AST\Functions\FunctionNode: case $expr instanceof AST\SimpleArithmeticExpression: case $expr instanceof AST\ArithmeticTerm: case $expr instanceof AST\ArithmeticFactor: case $expr instanceof AST\Literal: case $expr instanceof AST\NullIfExpression: case $expr instanceof AST\CoalesceExpression: case $expr instanceof AST\GeneralCaseExpression: case $expr instanceof AST\SimpleCaseExpression: $columnAlias = $this->getSQLColumnAlias('sclr'); $resultAlias = $selectExpression->fieldIdentificationVariable ?: $this->scalarResultCounter++; $sql .= $expr->dispatch($this) . ' AS ' . $columnAlias; $this->scalarResultAliasMap[$resultAlias] = $columnAlias; if (!$hidden) { // We cannot resolve field type here; assume 'string'. $this->rsm->addScalarResult($columnAlias, $resultAlias, 'string'); } break; case $expr instanceof AST\Subselect: $columnAlias = $this->getSQLColumnAlias('sclr'); $resultAlias = $selectExpression->fieldIdentificationVariable ?: $this->scalarResultCounter++; $sql .= '(' . $this->walkSubselect($expr) . ') AS ' . $columnAlias; $this->scalarResultAliasMap[$resultAlias] = $columnAlias; if (!$hidden) { // We cannot resolve field type here; assume 'string'. $this->rsm->addScalarResult($columnAlias, $resultAlias, 'string'); } break; case $expr instanceof AST\NewObjectExpression: $sql .= $this->walkNewObject($expr); break; default: // IdentificationVariable or PartialObjectExpression if ($expr instanceof AST\PartialObjectExpression) { $dqlAlias = $expr->identificationVariable; $partialFieldSet = $expr->partialFieldSet; } else { $dqlAlias = $expr; $partialFieldSet = array(); } $queryComp = $this->queryComponents[$dqlAlias]; $class = $queryComp['metadata']; $resultAlias = $selectExpression->fieldIdentificationVariable ?: null; if (!isset($this->selectedClasses[$dqlAlias])) { $this->selectedClasses[$dqlAlias] = array('class' => $class, 'dqlAlias' => $dqlAlias, 'resultAlias' => $resultAlias); } $sqlParts = array(); // Select all fields from the queried class foreach ($class->fieldMappings as $fieldName => $mapping) { if ($partialFieldSet && !in_array($fieldName, $partialFieldSet)) { continue; } $tableName = isset($mapping['inherited']) ? $this->em->getClassMetadata($mapping['inherited'])->getTableName() : $class->getTableName(); $sqlTableAlias = $this->getSQLTableAlias($tableName, $dqlAlias); $columnAlias = $this->getSQLColumnAlias($mapping['columnName']); $quotedColumnName = $this->quoteStrategy->getColumnName($fieldName, $class, $this->platform); $col = $sqlTableAlias . '.' . $quotedColumnName; if (isset($class->fieldMappings[$fieldName]['requireSQLConversion'])) { $type = Type::getType($class->getTypeOfField($fieldName)); $col = $type->convertToPHPValueSQL($col, $this->platform); } $sqlParts[] = $col . ' AS ' . $columnAlias; $this->scalarResultAliasMap[$resultAlias][] = $columnAlias; $this->rsm->addFieldResult($dqlAlias, $columnAlias, $fieldName, $class->name); } // Add any additional fields of subclasses (excluding inherited fields) // 1) on Single Table Inheritance: always, since its marginal overhead // 2) on Class Table Inheritance only if partial objects are disallowed, // since it requires outer joining subtables. if ($class->isInheritanceTypeSingleTable() || !$this->query->getHint(Query::HINT_FORCE_PARTIAL_LOAD)) { foreach ($class->subClasses as $subClassName) { $subClass = $this->em->getClassMetadata($subClassName); $sqlTableAlias = $this->getSQLTableAlias($subClass->getTableName(), $dqlAlias); foreach ($subClass->fieldMappings as $fieldName => $mapping) { if (isset($mapping['inherited']) || $partialFieldSet && !in_array($fieldName, $partialFieldSet)) { continue; } $columnAlias = $this->getSQLColumnAlias($mapping['columnName']); $quotedColumnName = $this->quoteStrategy->getColumnName($fieldName, $subClass, $this->platform); $col = $sqlTableAlias . '.' . $quotedColumnName; if (isset($subClass->fieldMappings[$fieldName]['requireSQLConversion'])) { $type = Type::getType($subClass->getTypeOfField($fieldName)); $col = $type->convertToPHPValueSQL($col, $this->platform); } $sqlParts[] = $col . ' AS ' . $columnAlias; $this->scalarResultAliasMap[$resultAlias][] = $columnAlias; $this->rsm->addFieldResult($dqlAlias, $columnAlias, $fieldName, $subClassName); } } } $sql .= implode(', ', $sqlParts); } return $sql; }
/** * Walks down a PathExpression AST node, thereby generating the appropriate SQL. * * @param mixed * @return string The SQL. */ public function walkPathExpression($pathExpr) { $sql = ''; $pathExprType = $pathExpr->type; switch ($pathExpr->type) { case AST\PathExpression::TYPE_STATE_FIELD: $parts = $pathExpr->parts; $fieldName = array_pop($parts); $dqlAlias = $pathExpr->identificationVariable . (!empty($parts) ? '.' . implode('.', $parts) : ''); $qComp = $this->_queryComponents[$dqlAlias]; $class = $qComp['metadata']; if ($this->_useSqlTableAliases) { $sql .= $this->walkIdentificationVariable($dqlAlias, $fieldName) . '.'; } $sql .= $class->getQuotedColumnName($fieldName, $this->_platform); break; case AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION: // "u.Group" should be converted to: // 1- IdentificationVariable is the owning side: // Just append the condition: u.group_id = ? /*$parts = $pathExpr->parts; $numParts = count($parts); $dqlAlias = $pathExpr->identificationVariable; $fieldName = $parts[$numParts - 1]; $qComp = $this->_queryComponents[$dqlAlias]; $class = $qComp['metadata']; $assoc = $class->associationMappings[$fieldName]; if ($assoc->isOwningSide) { foreach ($assoc->) $sql .= $this->walkIdentificationVariable($dqlAlias, $fieldName) . '.'; } // 2- IdentificationVariable is the inverse side: // Join required: INNER JOIN u.Group g // Append condition: g.id = ? break;*/ // "u.Group" should be converted to: // 1- IdentificationVariable is the owning side: // Just append the condition: u.group_id = ? /*$parts = $pathExpr->parts; $numParts = count($parts); $dqlAlias = $pathExpr->identificationVariable; $fieldName = $parts[$numParts - 1]; $qComp = $this->_queryComponents[$dqlAlias]; $class = $qComp['metadata']; $assoc = $class->associationMappings[$fieldName]; if ($assoc->isOwningSide) { foreach ($assoc->) $sql .= $this->walkIdentificationVariable($dqlAlias, $fieldName) . '.'; } // 2- IdentificationVariable is the inverse side: // Join required: INNER JOIN u.Group g // Append condition: g.id = ? break;*/ case AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION: throw DoctrineException::notImplemented(); default: throw QueryException::invalidPathExpression($pathExpr); } return $sql; }