/**
* Lock all rows of this entity matching the given criteria with the specified pessimistic lock mode
*
* @param array $criteria
* @param int $lockMode
* @return void
*/
public function lock(array $criteria, $lockMode)
{
$conditionSql = $this->_getSelectConditionSQL($criteria);
if ($lockMode == LockMode::PESSIMISTIC_READ) {
$lockSql = $this->_platform->getReadLockSql();
} else {
if ($lockMode == LockMode::PESSIMISTIC_WRITE) {
$lockSql = $this->_platform->getWriteLockSql();
}
}
$sql = 'SELECT 1 ' . $this->_platform->appendLockHint($this->getLockTablesSql(), $lockMode) . ($conditionSql ? ' WHERE ' . $conditionSql : '') . ' ' . $lockSql;
list($params, $types) = $this->expandParameters($criteria);
$stmt = $this->_conn->executeQuery($sql, $params, $types);
}
/**
* {@inheritdoc}
*/
public function walkSubselectFromClause($subselectFromClause)
{
$identificationVarDecls = $subselectFromClause->identificationVariableDeclarations;
$sqlParts = array();
foreach ($identificationVarDecls as $subselectIdVarDecl) {
$sql = $this->walkRangeVariableDeclaration($subselectIdVarDecl->rangeVariableDeclaration);
foreach ($subselectIdVarDecl->joins as $join) {
$sql .= $this->walkJoin($join);
}
$sqlParts[] = $this->platform->appendLockHint($sql, $this->query->getHint(Query::HINT_LOCK_MODE));
}
return ' FROM ' . implode(', ', $sqlParts);
}
/**
* Locks all rows of this entity matching the given criteria with the specified pessimistic lock mode.
*
* @param array $criteria
* @param int $lockMode
*
* @return void
*/
public function lock(array $criteria, $lockMode)
{
$lockSql = '';
$conditionSql = $this->getSelectConditionSQL($criteria);
switch ($lockMode) {
case LockMode::PESSIMISTIC_READ:
$lockSql = $this->platform->getReadLockSql();
break;
case LockMode::PESSIMISTIC_WRITE:
$lockSql = $this->platform->getWriteLockSql();
break;
}
$lock = $this->platform->appendLockHint($this->getLockTablesSql(), $lockMode);
$where = ($conditionSql ? ' WHERE ' . $conditionSql : '') . ' ';
$sql = 'SELECT 1 '
. $lock
. $where
. $lockSql;
list($params, $types) = $this->expandParameters($criteria);
$this->conn->executeQuery($sql, $params, $types);
}
/**
* Gets the FROM and optionally JOIN conditions to lock the entity managed by this persister.
*
* @param integer $lockMode One of the Doctrine\DBAL\LockMode::* constants.
*
* @return string
*/
protected function getLockTablesSql($lockMode)
{
return $this->platform->appendLockHint('FROM ' . $this->quoteStrategy->getTableName($this->class, $this->platform) . ' ' . $this->getSQLTableAlias($this->class->name), $lockMode);
}
/**
* Walks down a RangeVariableDeclaration AST node, thereby generating the appropriate SQL.
*
* @param AST\RangeVariableDeclaration $rangeVariableDeclaration
*
* @return string
*/
public function walkRangeVariableDeclaration($rangeVariableDeclaration)
{
$class = $this->em->getClassMetadata($rangeVariableDeclaration->abstractSchemaName);
$dqlAlias = $rangeVariableDeclaration->aliasIdentificationVariable;
if ($rangeVariableDeclaration->isRoot) {
$this->rootAliases[] = $dqlAlias;
}
$sql = $this->platform->appendLockHint($this->quoteStrategy->getTableName($class, $this->platform) . ' ' . $this->getSQLTableAlias($class->getTableName(), $dqlAlias), $this->query->getHint(Query::HINT_LOCK_MODE));
if ($class->isInheritanceTypeJoined()) {
$sql .= $this->_generateClassTableInheritanceJoins($class, $dqlAlias);
}
return $sql;
}
