/**
* {@inheritDoc}
*/
public function dropConstraints(ConnectionInterface $db)
{
if (empty($this->_constraints)) {
return true;
}
$sql = $this->_schema->dropConstraintSql($db);
if (empty($sql)) {
return true;
}
foreach ($sql as $stmt) {
$db->execute($stmt)->closeCursor();
}
foreach ($this->_constraints as $name => $data) {
$this->_schema->dropConstraint($name);
}
return true;
}
