/**
* {@inheritdoc}
*/
public function log($level, $message, array $context = array())
{
// Remove any backtraces since they may contain an unserializable variable.
unset($context['backtrace']);
// Convert PSR3-style messages to SafeMarkup::format() style, so they can be
// translated too in runtime.
$message_placeholders = $this->parser->parseMessagePlaceholders($message, $context);
try {
$this->connection->insert('watchdog')->fields(array('uid' => $context['uid'], 'type' => Unicode::substr($context['channel'], 0, 64), 'message' => $message, 'variables' => serialize($message_placeholders), 'severity' => $level, 'link' => $context['link'], 'location' => $context['request_uri'], 'referer' => $context['referer'], 'hostname' => Unicode::substr($context['ip'], 0, 128), 'timestamp' => $context['timestamp']))->execute();
} catch (\Exception $e) {
// When running Drupal on MySQL or MariaDB you can run into several errors
// that corrupt the database connection. Some examples for these kind of
// errors on the database layer are "1100 - Table 'xyz' was not locked
// with LOCK TABLES" and "1153 - Got a packet bigger than
// 'max_allowed_packet' bytes". If such an error happens, the MySQL server
// invalidates the connection and answers all further requests in this
// connection with "2006 - MySQL server had gone away". In that case the
// insert statement above results in a database exception. To ensure that
// the causal error is written to the log we try once to open a dedicated
// connection and write again.
if (($e instanceof DatabaseException || $e instanceof \PDOException) && $this->connection->getTarget() != self::DEDICATED_DBLOG_CONNECTION_TARGET) {
// Open a dedicated connection for logging.
$key = $this->connection->getKey();
$info = Database::getConnectionInfo($key);
Database::addConnectionInfo($key, self::DEDICATED_DBLOG_CONNECTION_TARGET, $info['default']);
$this->connection = Database::getConnection(self::DEDICATED_DBLOG_CONNECTION_TARGET, $key);
// Now try once to log the error again.
$this->log($level, $message, $context);
} else {
throw $e;
}
}
}
/**
* Constructs a Query object.
*
* @param \Drupal\Core\Database\Connection $connection
* Database connection object.
* @param array $options
* Array of query options.
*/
public function __construct(Connection $connection, $options)
{
$this->uniqueIdentifier = uniqid('', TRUE);
$this->connection = $connection;
$this->connectionKey = $this->connection->getKey();
$this->connectionTarget = $this->connection->getTarget();
$this->queryOptions = $options;
}
/**
* Loads a database fixture into the source database connection.
*
* @param string $path
* Path to the dump file.
*/
protected function loadFixture($path)
{
$default_db = Database::getConnection()->getKey();
Database::setActiveConnection($this->sourceDatabase->getKey());
if (substr($path, -3) == '.gz') {
$path = 'compress.zlib://' . $path;
}
require $path;
Database::setActiveConnection($default_db);
}
/**
* Run the database script.
*
* @param \Drupal\Core\Database\Connection $connection
* Connection used by the script when included.
* @param string $script
* Path to dump script.
*/
protected function runScript(Connection $connection, $script)
{
$old_key = Database::setActiveConnection($connection->getKey());
if (substr($script, -3) == '.gz') {
$script = "compress.zlib://{$script}";
}
try {
require $script;
} catch (SchemaObjectExistsException $e) {
throw new \RuntimeException('An existing Drupal installation exists at this location. Try removing all tables or changing the database prefix in your settings.php file.');
}
Database::setActiveConnection($old_key);
}
