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<?php
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/**
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* dblib doesn't support transactions so we need to add a workaround for transactions, last insert ID, and quoting
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*
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* @package propel.adapter.MSSQL
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*/
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class MssqlDebugPDO extends DebugPDO
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{
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/**
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* Begin a transaction.
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*
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* It is necessary to override the abstract PDO transaction functions here, as
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* the PDO driver for MSSQL does not support transactions.
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*/
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public function beginTransaction()
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{
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$return = true;
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$opcount = $this->getNestedTransactionCount();
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if ( $opcount === 0 ) {
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$return = self::exec('BEGIN TRANSACTION');
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$this->isUncommitable = false;
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}
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$this->incrementNestedTransactionCount();
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return $return;
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}
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/**
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* Commit a transaction.
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*
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* It is necessary to override the abstract PDO transaction functions here, as
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* the PDO driver for MSSQL does not support transactions.
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*/
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public function commit()
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{
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$return = true;
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$opcount = $this->getNestedTransactionCount();
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if ($opcount > 0) {
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if ($opcount === 1) {
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if ($this->isUncommitable) {
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throw new PropelException('Cannot commit because a nested transaction was rolled back');
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} else {
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$return = self::exec('COMMIT TRANSACTION');
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}
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}
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$this->decrementNestedTransactionCount();
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}
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return $return;
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}
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/**
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* Roll-back a transaction.
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*
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* It is necessary to override the abstract PDO transaction functions here, as
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* the PDO driver for MSSQL does not support transactions.
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*/
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public function rollBack()
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{
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$return = true;
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$opcount = $this->getNestedTransactionCount();
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if ($opcount > 0) {
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if ($opcount === 1) {
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$return = self::exec('ROLLBACK TRANSACTION');
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} else {
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$this->isUncommitable = true;
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}
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$this->decrementNestedTransactionCount();
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}
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return $return;
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}
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/**
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* Rollback the whole transaction, even if this is a nested rollback
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* and reset the nested transaction count to 0.
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*
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* It is necessary to override the abstract PDO transaction functions here, as
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* the PDO driver for MSSQL does not support transactions.
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*/
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public function forceRollBack()
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{
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$return = true;
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$opcount = $this->getNestedTransactionCount();
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if ($opcount > 0) {
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// If we're in a transaction, always roll it back
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// regardless of nesting level.
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$return = self::exec('ROLLBACK TRANSACTION');
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// reset nested transaction count to 0 so that we don't
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// try to commit (or rollback) the transaction outside this scope.
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$this->nestedTransactionCount = 0;
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}
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return $return;
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}
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public function lastInsertId($seqname = null)
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{
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$result = self::query('SELECT SCOPE_IDENTITY()');
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return (int)$result->fetchColumn();
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}
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public function quoteIdentifier($text)
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{
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return '[' . $text . ']';
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}
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public function useQuoteIdentifier()
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{
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return true;
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}
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}
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