155 lines
4.3 KiB
PHP
155 lines
4.3 KiB
PHP
<?php
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namespace Illuminate\Database\Connectors;
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use PDO;
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class MySqlConnector extends Connector implements ConnectorInterface
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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 $config)
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{
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$dsn = $this->getDsn($config);
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$options = $this->getOptions($config);
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// We need to grab the PDO options that should be used while making the brand
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// new connection instance. The PDO options control various aspects of the
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// connection's behavior, and some might be specified by the developers.
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$connection = $this->createConnection($dsn, $config, $options);
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if (! empty($config['database'])) {
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$connection->exec("use `{$config['database']}`;");
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}
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$this->configureConnection($connection, $config);
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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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* Chooses socket or host/port based on the 'unix_socket' config value.
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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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return $this->hasSocket($config)
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? $this->getSocketDsn($config)
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: $this->getHostDsn($config);
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}
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/**
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* Determine if the given configuration array has a UNIX socket value.
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*
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* @param array $config
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* @return bool
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*/
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protected function hasSocket(array $config)
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{
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return isset($config['unix_socket']) && ! empty($config['unix_socket']);
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}
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/**
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* Get the DSN string for a socket 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 getSocketDsn(array $config)
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{
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return "mysql:unix_socket={$config['unix_socket']};dbname={$config['database']}";
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}
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/**
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* Get the DSN string for a host / port 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 getHostDsn(array $config)
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{
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extract($config, EXTR_SKIP);
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return isset($port)
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? "mysql:host={$host};port={$port};dbname={$database}"
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: "mysql:host={$host};dbname={$database}";
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}
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/**
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* Configure the given PDO connection.
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*
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* @param \PDO $connection
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* @param array $config
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* @return void
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*/
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protected function configureConnection(PDO $connection, array $config)
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{
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if (isset($config['isolation_level'])) {
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$connection->exec(sprintf('SET SESSION TRANSACTION ISOLATION LEVEL %s;', $config['isolation_level']));
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}
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$statements = [];
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if (isset($config['charset'])) {
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if (isset($config['collation'])) {
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$statements[] = sprintf("NAMES '%s' COLLATE '%s'", $config['charset'], $config['collation']);
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} else {
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$statements[] = sprintf("NAMES '%s'", $config['charset']);
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}
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}
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if (isset($config['timezone'])) {
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$statements[] = sprintf("time_zone='%s'", $config['timezone']);
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}
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$sqlMode = $this->getSqlMode($connection, $config);
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if ($sqlMode !== null) {
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$statements[] = sprintf("SESSION sql_mode='%s'", $sqlMode);
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}
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if ($statements !== []) {
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$connection->exec(sprintf('SET %s;', implode(', ', $statements)));
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}
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}
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/**
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* Get the sql_mode value.
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*
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* @param \PDO $connection
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* @param array $config
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* @return string|null
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*/
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protected function getSqlMode(PDO $connection, array $config)
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{
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if (isset($config['modes'])) {
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return implode(',', $config['modes']);
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}
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if (! isset($config['strict'])) {
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return null;
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}
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if (! $config['strict']) {
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return 'NO_ENGINE_SUBSTITUTION';
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}
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$version = $config['version'] ?? $connection->getAttribute(PDO::ATTR_SERVER_VERSION);
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if (version_compare($version, '8.0.11') >= 0) {
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return 'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION';
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}
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return 'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';
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}
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}
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