/**
*
* @param type $sql
* @param bool $useExceptions Optional - If set to TRUE will throw an _Exception() | If set to FALSE will return FALSE on error
* @return boolean|string
* @throws _Exception with code _DB_QUERY_ERROR only if _DB_USE_EXCEPTIONS == TRUE or $useExceptions (override) == TRUE
*/
public function query($sql, $useExceptions = _DbConfig::USE_EXCEPTIONS)
{
if (!$this->isConnected) {
$rc = $this->createConnection();
if ($rc === FALSE) {
return FALSE;
}
}
if (_DbConfig::LOG_SQL) {
_Log::debug($sql);
}
try {
$this->lastResult = $this->mysqli->query($sql);
} catch (Exception $e) {
if ($useExceptions) {
throw new _Exception('Error executing query | ' . $e->getMessage(), _DbErrors::QUERY_ERROR, $e);
} else {
return FALSE;
}
}
if ($this->lastResult === FALSE) {
// Error occurred
_Log::crit('Error occurred while executing query');
if ($useExceptions) {
throw new _Exception('Error executing query', _DbErrors::QUERY_ERROR);
} else {
return FALSE;
}
}
$this->lastCount = $this->mysqli->affected_rows;
return $this->lastResult;
}
/**
*
* @param string $filename The file to open
* @param const $permissions The permissions
* @return boolean TRUE if file was opened / FALSE if file was unable to be opened
*/
private function openFile($filename, $permissions = _FileConstants::READ_WRITE_END_OF_FILE_CREATE)
{
$this->closeFile();
if ($filename === NULL) {
_Log::debug('Invalid filename specified');
return false;
}
if ($filename == _FileConstants::TMP) {
$this->filename = tempnam($this->getTemporaryFileDirectory(), '_');
$this->fh = tmpfile();
} else {
$this->filename = $filename;
$this->fh = fopen($filename, $permissions);
}
if ($this->fh !== FALSE) {
$this->filePermissions = $permissions;
return TRUE;
}
return FALSE;
}