home/alospiesjs/www/apis/youtube/vendor/illuminate/database/Connectors/PostgresConnector.php000060400000014277151157204210026644 0ustar00 PDO::CASE_NATURAL, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_ORACLE_NULLS => PDO::NULL_NATURAL, PDO::ATTR_STRINGIFY_FETCHES => false, ]; /** * Establish a database connection. * * @param array $config * @return \PDO */ public function connect(array $config) { // First we'll create the basic DSN and connection instance connecting to the // using the configuration option specified by the developer. We will also // set the default character set on the connections to UTF-8 by default. $connection = $this->createConnection( $this->getDsn($config), $config, $this->getOptions($config) ); $this->configureIsolationLevel($connection, $config); $this->configureEncoding($connection, $config); // Next, we will check to see if a timezone has been specified in this config // and if it has we will issue a statement to modify the timezone with the // database. Setting this DB timezone is an optional configuration item. $this->configureTimezone($connection, $config); $this->configureSearchPath($connection, $config); // Postgres allows an application_name to be set by the user and this name is // used to when monitoring the application with pg_stat_activity. So we'll // determine if the option has been specified and run a statement if so. $this->configureApplicationName($connection, $config); $this->configureSynchronousCommit($connection, $config); return $connection; } /** * Set the connection transaction isolation level. * * @param \PDO $connection * @param array $config * @return void */ protected function configureIsolationLevel($connection, array $config) { if (isset($config['isolation_level'])) { $connection->prepare("set session characteristics as transaction isolation level {$config['isolation_level']}")->execute(); } } /** * Set the connection character set and collation. * * @param \PDO $connection * @param array $config * @return void */ protected function configureEncoding($connection, $config) { if (! isset($config['charset'])) { return; } $connection->prepare("set names '{$config['charset']}'")->execute(); } /** * Set the timezone on the connection. * * @param \PDO $connection * @param array $config * @return void */ protected function configureTimezone($connection, array $config) { if (isset($config['timezone'])) { $timezone = $config['timezone']; $connection->prepare("set time zone '{$timezone}'")->execute(); } } /** * Set the "search_path" on the database connection. * * @param \PDO $connection * @param array $config * @return void */ protected function configureSearchPath($connection, $config) { if (isset($config['search_path']) || isset($config['schema'])) { $searchPath = $this->quoteSearchPath( $this->parseSearchPath($config['search_path'] ?? $config['schema']) ); $connection->prepare("set search_path to {$searchPath}")->execute(); } } /** * Format the search path for the DSN. * * @param array $searchPath * @return string */ protected function quoteSearchPath($searchPath) { return count($searchPath) === 1 ? '"'.$searchPath[0].'"' : '"'.implode('", "', $searchPath).'"'; } /** * Set the application name on the connection. * * @param \PDO $connection * @param array $config * @return void */ protected function configureApplicationName($connection, $config) { if (isset($config['application_name'])) { $applicationName = $config['application_name']; $connection->prepare("set application_name to '$applicationName'")->execute(); } } /** * Create a DSN string from a configuration. * * @param array $config * @return string */ protected function getDsn(array $config) { // First we will create the basic DSN setup as well as the port if it is in // in the configuration options. This will give us the basic DSN we will // need to establish the PDO connections and return them back for use. extract($config, EXTR_SKIP); $host = isset($host) ? "host={$host};" : ''; $dsn = "pgsql:{$host}dbname='{$database}'"; // If a port was specified, we will add it to this Postgres DSN connections // format. Once we have done that we are ready to return this connection // string back out for usage, as this has been fully constructed here. if (isset($config['port'])) { $dsn .= ";port={$port}"; } return $this->addSslOptions($dsn, $config); } /** * Add the SSL options to the DSN. * * @param string $dsn * @param array $config * @return string */ protected function addSslOptions($dsn, array $config) { foreach (['sslmode', 'sslcert', 'sslkey', 'sslrootcert'] as $option) { if (isset($config[$option])) { $dsn .= ";{$option}={$config[$option]}"; } } return $dsn; } /** * Configure the synchronous_commit setting. * * @param \PDO $connection * @param array $config * @return void */ protected function configureSynchronousCommit($connection, array $config) { if (! isset($config['synchronous_commit'])) { return; } $connection->prepare("set synchronous_commit to '{$config['synchronous_commit']}'")->execute(); } }