/**
* Helper method to turn SQL Anywhere error into exception.
*
* @param resource|null $conn The SQL Anywhere connection resource to retrieve the last error from.
* @param resource|null $stmt The SQL Anywhere statement resource to retrieve the last error from.
*
* @return SQLAnywhereException
*
* @throws \InvalidArgumentException
*/
public static function fromSQLAnywhereError($conn = null, $stmt = null)
{
if (null !== $conn && !(is_resource($conn) && get_resource_type($conn) === 'SQLAnywhere connection')) {
throw new \InvalidArgumentException('Invalid SQL Anywhere connection resource given: ' . $conn);
}
if (null !== $stmt && !(is_resource($stmt) && get_resource_type($stmt) === 'SQLAnywhere statement')) {
throw new \InvalidArgumentException('Invalid SQL Anywhere statement resource given: ' . $stmt);
}
$state = $conn ? sasql_sqlstate($conn) : sasql_sqlstate();
$code = null;
$message = null;
/**
* Try retrieving the last error from statement resource if given
*/
if ($stmt) {
$code = sasql_stmt_errno($stmt);
$message = sasql_stmt_error($stmt);
}
/**
* Try retrieving the last error from the connection resource
* if either the statement resource is not given or the statement
* resource is given but the last error could not be retrieved from it (fallback).
* Depending on the type of error, it is sometimes necessary to retrieve
* it from the connection resource even though it occurred during
* a prepared statement.
*/
if ($conn && !$code) {
$code = sasql_errorcode($conn);
$message = sasql_error($conn);
}
/**
* Fallback mode if either no connection resource is given
* or the last error could not be retrieved from the given
* connection / statement resource.
*/
if (!$conn || !$code) {
$code = sasql_errorcode();
$message = sasql_error();
}
if ($message) {
return new self('SQLSTATE [' . $state . '] [' . $code . '] ' . $message, $state, $code);
}
return new self('SQL Anywhere error occurred but no error message was retrieved from driver.', $state, $code);
}
/**
* {@inheritdoc}
*/
public function errorInfo()
{
return sasql_stmt_error($this->stmt);
}