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<?php |
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namespace Yajra\Oci8\Connectors; |
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use Illuminate\Database\Connectors; |
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use Illuminate\Database\Connectors\Connector; |
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use Illuminate\Database\Connectors\ConnectorInterface; |
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use PDO; |
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use Yajra\Pdo\Oci8; |
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class OracleConnector extends Connector implements ConnectorInterface |
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{ |
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/** |
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* The default PDO connection options. |
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* |
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* @var array |
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*/ |
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protected $options = [ |
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PDO::ATTR_CASE => PDO::CASE_LOWER, |
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, |
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PDO::ATTR_ORACLE_NULLS => PDO::NULL_NATURAL, |
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]; |
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/** |
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* Establish a database connection. |
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* |
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* @param array $config |
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* @return PDO |
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*/ |
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public function connect(array $config) |
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{ |
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$tns = ! empty($config['tns']) ? $config['tns'] : $this->getDsn($config); |
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$options = $this->getOptions($config); |
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$connection = $this->createConnection($tns, $config, $options); |
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return $connection; |
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} |
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/** |
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* Create a DSN string from a configuration. |
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* |
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* @param array $config |
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* @return string |
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*/ |
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protected function getDsn(array $config) |
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{ |
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if (! empty($config['tns'])) { |
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return $config['tns']; |
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} |
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// parse configuration |
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$config = $this->parseConfig($config); |
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// check multiple connections/host, comma delimiter |
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$config = $this->checkMultipleHostDsn($config); |
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// return generated tns |
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return $config['tns']; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function parseConfig(array $config) |
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{ |
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$config = $this->setHost($config); |
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$config = $this->setPort($config); |
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$config = $this->setProtocol($config); |
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$config = $this->setServiceId($config); |
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$config = $this->setTNS($config); |
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$config = $this->setCharset($config); |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function setHost(array $config) |
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{ |
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$config['host'] = isset($config['host']) ? $config['host'] : $config['hostname']; |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function setPort(array $config) |
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{ |
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$config['port'] = isset($config['port']) ? $config['port'] : '1521'; |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function setProtocol(array $config) |
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{ |
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$config['protocol'] = isset($config['protocol']) ? $config['protocol'] : 'TCP'; |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function setServiceId(array $config) |
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{ |
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$config['service'] = empty($config['service_name']) |
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? $service_param = 'SID = ' . $config['database'] |
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: $service_param = 'SERVICE_NAME = ' . $config['service_name']; |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function setTNS(array $config) |
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{ |
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$config['tns'] = "(DESCRIPTION = (ADDRESS = (PROTOCOL = {$config['protocol']})(HOST = {$config['host']})(PORT = {$config['port']})) (CONNECT_DATA =({$config['service']})))"; |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function setCharset(array $config) |
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{ |
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if (! isset($config['charset'])) { |
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$config['charset'] = 'AL32UTF8'; |
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} |
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return $config; |
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} |
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/** |
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* @param array $config |
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* @return array |
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*/ |
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private function checkMultipleHostDsn(array $config) |
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{ |
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$host = is_array($config['host']) ? $config['host'] : explode(',', $config['host']); |
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$count = count($host); |
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if ($count > 1) { |
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$address = ""; |
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for ($i = 0; $i < $count; $i++) { |
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$address .= '(ADDRESS = (PROTOCOL = ' . $config["protocol"] . ')(HOST = ' . trim($host[$i]) . ')(PORT = ' . $config['port'] . '))'; |
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} |
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// create a tns with multiple address connection |
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$config['tns'] = "(DESCRIPTION = {$address} (LOAD_BALANCE = yes) (FAILOVER = on) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = {$config['database']})))"; |
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} |
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return $config; |
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} |
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/** |
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* Create a new PDO connection. |
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* |
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* @param string $tns |
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* @param array $config |
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* @param array $options |
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* @return PDO |
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*/ |
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public function createConnection($tns, array $config, array $options) |
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{ |
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// add fallback in case driver is not set, will use pdo instead |
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if (! in_array($config['driver'], ['oci8', 'pdo-via-oci8', 'oracle'])) { |
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return parent::createConnection($tns, $config, $options); |
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} |
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$config = $this->setCharset($config); |
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$options['charset'] = $config['charset']; |
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return new Oci8($tns, $config['username'], $config['password'], $options); |
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} |
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} |
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yajra /
laravel-oci8
